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OLD - R-PS Semester Exam > R-PS Sem Exam Combined Set > Flashcards

R-PS Sem Exam Combined Set Flashcards

1
Q

quantitative observations

A

has numbers

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2
Q

King

A

kilo (x 10e3) ( k)

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3
Q

The lightbulb is an example of ____.

A

technology

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4
Q

The prefix kilo- means ____.

A

1,000

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5
Q

What punctuation mark can NEVER follow a hypothesis?

A

A question mark

(A hypothesis is a statement, it is never a question)

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6
Q

Rule for determining how many significant figures to keep when multiplying one or more numbers?

A
  1. Count the significant figures in all the numbers you are multiplying.
  2. Find the one with the least number of sig figs.
  3. Keep this many sig figs in your final answer.
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7
Q

You use your brain for

A

Inferences

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8
Q

Hypothesis

A

An educated and careful guess

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9
Q

worldwide system of measurement

A

SI

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10
Q

The best type of graph to use to show how some fixed quantity is broken down into parts is_____.

A

circle graph (pie chart)

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11
Q

On a multiple choice test, the response “all of the above” means….

A

It means you better read each and every one of the other responses!

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12
Q

SI

A

worldwide system of measurement (Systeme International d’unites)

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13
Q

If you use your brain, then it is an (obseration/inference)

A

inference

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14
Q

Law, Theory, Scientific Fact, or Hypothesis?

It is always a statement.

A

Hypothesis

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15
Q

An explanation of an event that is based on repeated observations and experiments is a ____.

A

theory

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16
Q

milli-

A

SI prefix meaning 0.001

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17
Q

qualitative observation

A

has no numbers

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18
Q

kelvin

A

SI unit of temperature

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19
Q

meter

A

SI unit of length

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20
Q

A standard for comparison that helps to ensure that the experimental result is caused by the condition being tested

A

A Control

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21
Q

SI unit of length

A

meter

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22
Q

Milk

A

milli (x 10e-3) (m)

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23
Q

explanation of a group of related events that is based on extensive observation and experimentation

A

scientific theory

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24
Q

prefix milli-

A

0.001

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25
Q

If the number has a

decimal point….

What is the rule for determining the

place value of the uncertain digit?

A

It is the last digit on the right.

  1. 0
  2. 25
  3. 6500
  4. 345 x 103
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26
Q

Law, Theory, Scientific Fact, or Hypothesis?

It is always a statement.

A

Hypothesis

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27
Q

A cubic centimeter is also known as either a cc or a ___________.

A

milliliter

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28
Q

.0080

Which digit above is the uncertain digit?

A

.0080

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29
Q

plotted on the vertical or y-axis

A

dependent variable

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30
Q

How many significant figures would you keep in your answer to the following problem?

22,300 ÷ 2.004 =

A

3

(22,300 has only 3 sig figs)

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31
Q

The amount of material in an object

A

mass

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32
Q

dependent variable is usually plotted on the

A

vertical or y-axis

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33
Q

True or False.

The “Null Hypothesis” predicts that changes in the independent variable will affect the dependent variable.

A

False

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34
Q

Why is it so important for industrial countries to have a standard of measurement?

A

Measurements can be compared to each other.

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35
Q

Rule for determining how many sig figs to keep when adding numbers.

A
  1. Find the uncertain digit in each of the numbers. (It is usually the one on the right, but zeros can be tricky)
  2. Examine the place value of each of the uncertain digits you found in step one.
  3. Which place value is the largest?
  4. Round your final answer to this same place value.
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36
Q

SI prefix meaning 0.01

A

centi-

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37
Q

Must be in the form of a statement.

A

A hypothesis

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38
Q

In order to make observations, you must always use…

A

One of your five senses.

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39
Q

You are multiplying the following numbers.

204.1

300

_ x 200.07_

12,250,286.1

How many significant figures should show in your answer?

A

One significant figure

10,000,000

The number 300 has only one significant figure, so your answer will be limited to one significant figure.

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40
Q

You are multiplying the following numbers:

  1. 3
  2. 077

x 400.00

840.84

How many significant figures should show in your answer?

A

Two significant figures.

840

The number 0.077 has only two significant figures, so the answer should be limited to two significant figures.

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41
Q

Law, Theory, Scientific Fact, or Hypothesis?

It has many, many parts

A

Theory

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42
Q

Why do we typically avoid putting “breaks” in the axes of graphs?

A

It distorts the appearance of the data.

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43
Q

The SI unit that is used to measure time is the ____.

A

second

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44
Q

Why do we draw lines between ponts on a line graph?

A

To represent the expected values of the unmeasured data between the measured points.

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45
Q

“I have a theory about that”

A

Statement by someone who does not understand the difference between a theory and a hypothesis

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46
Q

To what decimal place would you round the answer to?

63.313
-12.1
51.131

A

To the tenths place.

51.1

This is a subtraction problem, and 12.1 is accurate only to the tenths place, so you can’t go any farther than the tenths place in your answer.

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47
Q

Correct symbol for the SI unit of temperature

A

K (kelvin)

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48
Q

SI prefix meaning 0.001

A

milli-

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49
Q

SI unit of mass

A

kilogram

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50
Q

Temperature of absolute zero in Fahrenheit

A

negative 459.4 (don’t memorize this, just know that it is really, really cold)

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51
Q

You are doing an experiment to see if ducks fly faster when listening to music with special “duck” headphones.

You equip 300 ducks with these special headphones and measure their flight speed to be 43mph.

You then conclude that ducks do fly faster with headphones.

What is missing?

A

A control

You would need “A Control” as a basis for comparison. In other words, you would need to measure the flight speed of a group of ducks without headphones. Then you could compare.

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52
Q

2000

Which digit above is the uncertain digit?

A

2000

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53
Q

The prefix milli- means ____.

A

0.001

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54
Q

Why is the unit for speed, m/s, a derived unit?

A

It is a mathematical combination of two or more units. (meters divided by seconds)

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55
Q

Sometimes an experiment has a whole set of hypotheses. The hypothesis that says that changing the independent varialbe will have no effect on the dependent variable is called what?

A

The Null Hypothesis

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56
Q

A factor that does NOT change in an experiment

A

A constant (aka “controlled variable”)

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57
Q

A factor that does NOT change in an experiment is the ____.

A

constant

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58
Q

In an experiment to determine whether the popping of popcorn is affected by the temperature at which it is stored, counting the popped kernels is an example of a(n) ____.

A

quantitative observation

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59
Q

To what decimal place would you round the answer to?

0.0620
-0.0110
0.0510

A

To the ten thousandths place.

0.0510

This is a subtraction problem, and both numbers are accurate to the ten thousandths place, so you should write the answer out the the ten thousandths place.

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60
Q

Law, Theory, Scientific Fact, or Hypothesis?

It must be testable

A

Hypothesis

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61
Q

By

A

______(x 10e0) (no prefix because this is the base unit like grams, meters, liters, etc)

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62
Q

mass per unit volume

A

density

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63
Q

True value

A

The result you would get if you could actually make a perfect measurement. (Too bad you can never do that. It is impossible)

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64
Q

Temperature of absolute zero in Celsius

A

negative 273 degrees celsius

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65
Q

If you use your senses, then it is an (observation/inference)

A

observation

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66
Q

When do we put “breaks” in the axes of graphs?

A

When we are willing to live with the distorted appearance of the data so that we can zoom in on a specific region of the data.

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67
Q

If you multiply 27.3 x 32, your answer will have how many significant figures?

A

2

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68
Q

Graphs are visual representations of data that help scientists to detect _________ in the data.

A

patterns

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69
Q

SI unit of temperature

A

kelvin

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70
Q

kilo-

A

SI prefix meaning 1,000

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71
Q

Define a “standard” as it is used in the term standard measurement.

A

An exact quantity that people agree to use for comparison

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72
Q

How many significant figures would you keep in your answer to the following problem?

96.3 x 13,310 =

A

3

(96.3 has only 3 sig figs)

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73
Q

Any SI unit can be converted to any other SI unit by multiplying by the appropriate ___________ _____________.

A

conversion factor

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74
Q

Law, Theory, Scientific Fact, or Hypothesis?

It is a description

A

Scientific Law

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75
Q

A factor that is manipulated in an experiment to change the dependent variable

A

independent varialble (aka manipulated variable)

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76
Q

measurement standard

A

exact quantity people agree to use for comparison

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77
Q

.008

Which digit above is the uncertain digit?

A

.008

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78
Q

m

A

The greek letter “mu” (pronounced “mew” like a cat might say)

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79
Q

Mix

A

micro (x 10e-6) (_)

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80
Q

Henry

A

hecto (x 10e2) (h)

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81
Q

To what decimal place would you round the answer to?

16.85

+3312

3328.85

A

The ones place.

3329

This is an addition problem, and 3312 is accurate only to the ones place, so you have to round your answer to the ones place.

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82
Q

Representation of an idea, event, or object that can help people better understand it.

A

Model

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83
Q

A factor that is manipulated in an experiment to change the dependent variable is the ____.

A

independent variable

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84
Q

If a number has a

zero with a line over it…

Where is the uncertain digit?

(This is an important exception to some other rules you might see on these flash cards.

A

The zero with the line over it is the uncertain digit.

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85
Q

kilogram

A

SI unit of mass

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86
Q

Law, Theory, Scientific Fact, or Hypothesis?

When a part of it is refuted by an experiment, that part is changed to make that one part better.

A

Theory

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87
Q

variable usually plotted on the horizontal or x-axis

A

independent varialble (aka manipulated variable)

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88
Q

Accuracy

A

How close a measurement is to the true value or even the accepted value.

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89
Q

First step in designing an experiment

A

State the problem

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90
Q

Studying the effect of one thing on another in order to test a hypothesis is a(n) ____.

A

experiment

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91
Q

“aka” means

A

also known as

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92
Q

Why is a cubic centimeter a derived unit?

A

It_s a mathematical combination of two or more units. (cm x cm x cm)

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93
Q

derived unit of volume

A

cubic centimeter

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94
Q

Abbreviation for the International System of Units

A

SI

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95
Q

Rule for determining the number of sig figs to keep when you are dividing numbers.

A
  1. Count the significant figures in all the numbers you are dividing.
  2. Find the one with the least number of sig figs.
  3. Keep this many sig figs in your final answer.
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96
Q

SI unit of time

A

second

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97
Q

nano

A

SI prefix meaning one billionth of (x 10e-9)

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98
Q

factor in an experiment that changes from the manipulation of the independent variable

A

dependent variable

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99
Q

micro

A

SI prefix meaning one millionth of (x 10e-6)

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100
Q

(Laws/Theories) are small (can be fully described in a few sentences or a mathematical formula

A

Laws

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101
Q

Another term for technology is ____.

A

applied science

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102
Q

How many significant figures would you keep in your answer to the following problem?

47.3 x 83,312 =

A

3

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103
Q

Amount of space occupied by an object

A

volume

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104
Q

“IM DR” is a mnemonic device to help remember

A

(Independent variable = Manipulated variable) and (Dependent variable = Responding Variable)

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105
Q

Nuggets

A

(x 10e-9)

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106
Q

Why are the points on a bar graph not connected?

A

There is no data between points that could be graphed.

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107
Q

Precision

A

How closely measurements are too each other.

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108
Q

The correct symbol for the SI unit of temperature is ____.

A

K

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109
Q

Why don’t we draw lines between bars on a bar graph?

A

There is no data between the bars on a bar graph.

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110
Q

SI prefix meaning 1,000

A

kilo-

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111
Q

A beaker contains 0.32 L of water. What is the volume of this water in milliliters?

A

320 mL

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112
Q

To what decimal place would you round the answer to?

6.03
+12.002
18.032

A

To the hundredths place.

18.03

This is an addition problem, and 6.03 is accurate only to the hundredths place, so you can’t go any farther than the hundredths place in your answer.

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113
Q

Law, Theory, Scientific Fact, or Hypothesis?

It is BIG

A

Theory

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114
Q

Scientific Method

A

An organized set of investigation procedures.

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115
Q

What is the definition of a derived unit?

A

A mathematical combination of two or more units.

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116
Q

(Laws/Theories) are big usually developed by many scientists working over years or decades.

A

Laws.

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117
Q

Temperature of absolute zero in kelvin

A

0 degrees Kelvin

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118
Q

Hanging Indent

A

A formatting style Mr. Bixel likes us to use on our labs.

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119
Q

670.45

Which digit above is the uncertain digit?

A

670.45

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120
Q

A factor in an experiment that changes from the manipulation of the independent variable is the_____.

A

dependent variable

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121
Q

How many significant figures would you keep in your answer to the following problem?

0.331 x 0.2473 =

A

3

(0.331 has the least number of sig figs in this multiplication problem)

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122
Q

Explain how the lack of a control in an experiment impacts the experiment.

A

Without a control, there is no basis for comparison.

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123
Q

Law, Theory, Scientific Fact, or Hypothesis?

It is “small.”

A

Scientific Law

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124
Q

On a test or quiz, what does “All of these” mean?

A

It means that only a silly person would pick an answer without reading ALL of the answers.

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125
Q

centi-

A

SI prefix meaning 0.01

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126
Q

The Null Hypothesis predicts what relationship between the independent and dependent variables?

A

No relationship at all.

(Changine the independent variable has not effect on the dependent variable.)

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127
Q

Arrange in order from smallest to largest. (cm, km, m, mm, nm

A

nm, mm, cm, m, km

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128
Q

When designing an experiment, the first step is to ____.

A

state the problem

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129
Q

mass

A

amount of material in an object

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130
Q

independent variable is aka

A

manipulated variable (IM DR)

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131
Q

SI system is based upon multiples of

A

10

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132
Q

graph type used to show some fixed quantity broken down into parts

A

circle graph (pie chart)

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133
Q

Law, Theory, Scientific Fact, or Hypothesis?

A single experiment cannot ever prove it correct, but it can support it.

A

Hypothesis

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134
Q

cubic centimeter

A

derived unit of volume

(its a cube with 1 cm sides)

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135
Q

To what decimal place would you round the answer to?

6.03
+12.002
18.032

A

To the hundredths place.

18.03

This is an addition problem, and 6.03 is accurate only to the hundredths place, so you can’t go any farther than the hundredths place in your answer.

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136
Q

An idea, event, or object can be represented by a ____ to help people better understand it.

A

model

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137
Q

Studying the effect of one thing on another in order to test a hypothesis is a(n) ____.

A

experiment

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138
Q

Observation or Inference?

“The sky looks blue today”

A

Observation

(You used one of your five senses)

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139
Q

“I have a hypothesis about that”

A

Statement by someone who does understand the difference between a theory and a hypothesis

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140
Q

quantitative observations

A

has numbers

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141
Q

King

A

kilo (x 10e3) ( k)

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142
Q

The lightbulb is an example of ____.

A

technology

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143
Q

The prefix kilo- means ____.

A

1,000

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144
Q

What punctuation mark can NEVER follow a hypothesis?

A

A question mark

(A hypothesis is a statement, it is never a question)

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145
Q

Rule for determining how many significant figures to keep when multiplying one or more numbers?

A
  1. Count the significant figures in all the numbers you are multiplying.
  2. Find the one with the least number of sig figs.
  3. Keep this many sig figs in your final answer.
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146
Q

You use your brain for

A

Inferences

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147
Q

Hypothesis

A

An educated and careful guess

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148
Q

worldwide system of measurement

A

SI

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149
Q

The best type of graph to use to show how some fixed quantity is broken down into parts is_____.

A

circle graph (pie chart)

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150
Q

On a multiple choice test, the response “all of the above” means….

A

It means you better read each and every one of the other responses!

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151
Q

SI

A

worldwide system of measurement (Systeme International d’unites)

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152
Q

If you use your brain, then it is an (obseration/inference)

A

inference

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153
Q

Law, Theory, Scientific Fact, or Hypothesis?

It is always a statement.

A

Hypothesis

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154
Q

An explanation of an event that is based on repeated observations and experiments is a ____.

A

theory

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155
Q

milli-

A

SI prefix meaning 0.001

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156
Q

qualitative observation

A

has no numbers

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157
Q

kelvin

A

SI unit of temperature

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158
Q

meter

A

SI unit of length

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159
Q

A standard for comparison that helps to ensure that the experimental result is caused by the condition being tested

A

A Control

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160
Q

SI unit of length

A

meter

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161
Q

Milk

A

milli (x 10e-3) (m)

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162
Q

explanation of a group of related events that is based on extensive observation and experimentation

A

scientific theory

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163
Q

prefix milli-

A

0.001

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164
Q

If the number has a

decimal point….

What is the rule for determining the

place value of the uncertain digit?

A

It is the last digit on the right.

  1. 0
  2. 25
  3. 6500
  4. 345 x 103
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165
Q

Law, Theory, Scientific Fact, or Hypothesis?

It is always a statement.

A

Hypothesis

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166
Q

A cubic centimeter is also known as either a cc or a ___________.

A

milliliter

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167
Q

.0080

Which digit above is the uncertain digit?

A

.0080

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168
Q

plotted on the vertical or y-axis

A

dependent variable

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169
Q

How many significant figures would you keep in your answer to the following problem?

22,300 ÷ 2.004 =

A

3

(22,300 has only 3 sig figs)

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170
Q

The amount of material in an object

A

mass

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171
Q

dependent variable is usually plotted on the

A

vertical or y-axis

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172
Q

True or False.

The “Null Hypothesis” predicts that changes in the independent variable will affect the dependent variable.

A

False

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173
Q

Why is it so important for industrial countries to have a standard of measurement?

A

Measurements can be compared to each other.

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174
Q

Rule for determining how many sig figs to keep when adding numbers.

A
  1. Find the uncertain digit in each of the numbers. (It is usually the one on the right, but zeros can be tricky)
  2. Examine the place value of each of the uncertain digits you found in step one.
  3. Which place value is the largest?
  4. Round your final answer to this same place value.
175
Q

SI prefix meaning 0.01

A

centi-

176
Q

Must be in the form of a statement.

A

A hypothesis

177
Q

In order to make observations, you must always use…

A

One of your five senses.

178
Q

You are multiplying the following numbers.

204.1

300

_ x 200.07_

12,250,286.1

How many significant figures should show in your answer?

A

One significant figure

10,000,000

The number 300 has only one significant figure, so your answer will be limited to one significant figure.

179
Q

You are multiplying the following numbers:

  1. 3
  2. 077

x 400.00

840.84

How many significant figures should show in your answer?

A

Two significant figures.

840

The number 0.077 has only two significant figures, so the answer should be limited to two significant figures.

180
Q

Law, Theory, Scientific Fact, or Hypothesis?

It has many, many parts

A

Theory

181
Q

Why do we typically avoid putting “breaks” in the axes of graphs?

A

It distorts the appearance of the data.

182
Q

The SI unit that is used to measure time is the ____.

A

second

183
Q

Why do we draw lines between ponts on a line graph?

A

To represent the expected values of the unmeasured data between the measured points.

184
Q

“I have a theory about that”

A

Statement by someone who does not understand the difference between a theory and a hypothesis

185
Q

To what decimal place would you round the answer to?

63.313
-12.1
51.131

A

To the tenths place.

51.1

This is a subtraction problem, and 12.1 is accurate only to the tenths place, so you can’t go any farther than the tenths place in your answer.

186
Q

Correct symbol for the SI unit of temperature

A

K (kelvin)

187
Q

SI prefix meaning 0.001

A

milli-

188
Q

SI unit of mass

A

kilogram

189
Q

Temperature of absolute zero in Fahrenheit

A

negative 459.4 (don’t memorize this, just know that it is really, really cold)

190
Q

You are doing an experiment to see if ducks fly faster when listening to music with special “duck” headphones.

You equip 300 ducks with these special headphones and measure their flight speed to be 43mph.

You then conclude that ducks do fly faster with headphones.

What is missing?

A

A control

You would need “A Control” as a basis for comparison. In other words, you would need to measure the flight speed of a group of ducks without headphones. Then you could compare.

191
Q

2000

Which digit above is the uncertain digit?

A

2000

192
Q

The prefix milli- means ____.

A

0.001

193
Q

Why is the unit for speed, m/s, a derived unit?

A

It is a mathematical combination of two or more units. (meters divided by seconds)

194
Q

Sometimes an experiment has a whole set of hypotheses. The hypothesis that says that changing the independent varialbe will have no effect on the dependent variable is called what?

A

The Null Hypothesis

195
Q

A factor that does NOT change in an experiment

A

A constant (aka “controlled variable”)

196
Q

A factor that does NOT change in an experiment is the ____.

A

constant

197
Q

In an experiment to determine whether the popping of popcorn is affected by the temperature at which it is stored, counting the popped kernels is an example of a(n) ____.

A

quantitative observation

198
Q

To what decimal place would you round the answer to?

0.0620
-0.0110
0.0510

A

To the ten thousandths place.

0.0510

This is a subtraction problem, and both numbers are accurate to the ten thousandths place, so you should write the answer out the the ten thousandths place.

199
Q

Law, Theory, Scientific Fact, or Hypothesis?

It must be testable

A

Hypothesis

200
Q

By

A

______(x 10e0) (no prefix because this is the base unit like grams, meters, liters, etc)

201
Q

mass per unit volume

A

density

202
Q

True value

A

The result you would get if you could actually make a perfect measurement. (Too bad you can never do that. It is impossible)

203
Q

Temperature of absolute zero in Celsius

A

negative 273 degrees celsius

204
Q

If you use your senses, then it is an (observation/inference)

A

observation

205
Q

When do we put “breaks” in the axes of graphs?

A

When we are willing to live with the distorted appearance of the data so that we can zoom in on a specific region of the data.

206
Q

If you multiply 27.3 x 32, your answer will have how many significant figures?

A

2

207
Q

Graphs are visual representations of data that help scientists to detect _________ in the data.

A

patterns

208
Q

SI unit of temperature

A

kelvin

209
Q

kilo-

A

SI prefix meaning 1,000

210
Q

Define a “standard” as it is used in the term standard measurement.

A

An exact quantity that people agree to use for comparison

211
Q

How many significant figures would you keep in your answer to the following problem?

96.3 x 13,310 =

A

3

(96.3 has only 3 sig figs)

212
Q

Any SI unit can be converted to any other SI unit by multiplying by the appropriate ___________ _____________.

A

conversion factor

213
Q

Law, Theory, Scientific Fact, or Hypothesis?

It is a description

A

Scientific Law

214
Q

A factor that is manipulated in an experiment to change the dependent variable

A

independent varialble (aka manipulated variable)

215
Q

measurement standard

A

exact quantity people agree to use for comparison

216
Q

.008

Which digit above is the uncertain digit?

A

.008

217
Q

m

A

The greek letter “mu” (pronounced “mew” like a cat might say)

218
Q

Mix

A

micro (x 10e-6) (_)

219
Q

Henry

A

hecto (x 10e2) (h)

220
Q

To what decimal place would you round the answer to?

16.85

+3312

3328.85

A

The ones place.

3329

This is an addition problem, and 3312 is accurate only to the ones place, so you have to round your answer to the ones place.

221
Q

Representation of an idea, event, or object that can help people better understand it.

A

Model

222
Q

A factor that is manipulated in an experiment to change the dependent variable is the ____.

A

independent variable

223
Q

If a number has a

zero with a line over it…

Where is the uncertain digit?

(This is an important exception to some other rules you might see on these flash cards.

A

The zero with the line over it is the uncertain digit.

224
Q

kilogram

A

SI unit of mass

225
Q

Law, Theory, Scientific Fact, or Hypothesis?

When a part of it is refuted by an experiment, that part is changed to make that one part better.

A

Theory

226
Q

variable usually plotted on the horizontal or x-axis

A

independent varialble (aka manipulated variable)

227
Q

Accuracy

A

How close a measurement is to the true value or even the accepted value.

228
Q

First step in designing an experiment

A

State the problem

229
Q

Studying the effect of one thing on another in order to test a hypothesis is a(n) ____.

A

experiment

230
Q

“aka” means

A

also known as

231
Q

Why is a cubic centimeter a derived unit?

A

It_s a mathematical combination of two or more units. (cm x cm x cm)

232
Q

derived unit of volume

A

cubic centimeter

233
Q

Abbreviation for the International System of Units

A

SI

234
Q

Rule for determining the number of sig figs to keep when you are dividing numbers.

A
  1. Count the significant figures in all the numbers you are dividing.
  2. Find the one with the least number of sig figs.
  3. Keep this many sig figs in your final answer.
235
Q

SI unit of time

A

second

236
Q

nano

A

SI prefix meaning one billionth of (x 10e-9)

237
Q

factor in an experiment that changes from the manipulation of the independent variable

A

dependent variable

238
Q

micro

A

SI prefix meaning one millionth of (x 10e-6)

239
Q

(Laws/Theories) are small (can be fully described in a few sentences or a mathematical formula

A

Laws

240
Q

Another term for technology is ____.

A

applied science

241
Q

How many significant figures would you keep in your answer to the following problem?

47.3 x 83,312 =

A

3

242
Q

Amount of space occupied by an object

A

volume

243
Q

“IM DR” is a mnemonic device to help remember

A

(Independent variable = Manipulated variable) and (Dependent variable = Responding Variable)

244
Q

Nuggets

A

(x 10e-9)

245
Q

Why are the points on a bar graph not connected?

A

There is no data between points that could be graphed.

246
Q

Precision

A

How closely measurements are too each other.

247
Q

The correct symbol for the SI unit of temperature is ____.

A

K

248
Q

Why don’t we draw lines between bars on a bar graph?

A

There is no data between the bars on a bar graph.

249
Q

SI prefix meaning 1,000

A

kilo-

250
Q

A beaker contains 0.32 L of water. What is the volume of this water in milliliters?

A

320 mL

251
Q

To what decimal place would you round the answer to?

6.03
+12.002
18.032

A

To the hundredths place.

18.03

This is an addition problem, and 6.03 is accurate only to the hundredths place, so you can’t go any farther than the hundredths place in your answer.

252
Q

Law, Theory, Scientific Fact, or Hypothesis?

It is BIG

A

Theory

253
Q

Scientific Method

A

An organized set of investigation procedures.

254
Q

What is the definition of a derived unit?

A

A mathematical combination of two or more units.

255
Q

(Laws/Theories) are big usually developed by many scientists working over years or decades.

A

Theories

256
Q

Temperature of absolute zero in kelvin

A

0 degrees Kelvin

257
Q

Hanging Indent

A

A formatting style Mr. Bixel likes us to use on our labs.

258
Q

670.45

Which digit above is the uncertain digit?

A

670.45

259
Q

A factor in an experiment that changes from the manipulation of the independent variable is the_____.

A

dependent variable

260
Q

How many significant figures would you keep in your answer to the following problem?

0.331 x 0.2473 =

A

3

(0.331 has the least number of sig figs in this multiplication problem)

261
Q

Explain how the lack of a control in an experiment impacts the experiment.

A

Without a control, there is no basis for comparison.

262
Q

Law, Theory, Scientific Fact, or Hypothesis?

It is “small.”

A

Scientific Law

263
Q

On a test or quiz, what does “All of these” mean?

A

It means that only a silly person would pick an answer without reading ALL of the answers.

264
Q

centi-

A

SI prefix meaning 0.01

265
Q

The Null Hypothesis predicts what relationship between the independent and dependent variables?

A

No relationship at all.

(Changine the independent variable has not effect on the dependent variable.)

266
Q

Arrange in order from smallest to largest. (cm, km, m, mm, nm

A

nm, mm, cm, m, km

267
Q

When designing an experiment, the first step is to ____.

A

state the problem

268
Q

mass

A

amount of material in an object

269
Q

independent variable is aka

A

manipulated variable (IM DR)

270
Q

SI system is based upon multiples of

A

10

271
Q

graph type used to show some fixed quantity broken down into parts

A

circle graph (pie chart)

272
Q

Law, Theory, Scientific Fact, or Hypothesis?

A single experiment cannot ever prove it correct, but it can support it.

A

Hypothesis

273
Q

cubic centimeter

A

derived unit of volume

(its a cube with 1 cm sides)

274
Q

To what decimal place would you round the answer to?

6.03
+12.002
18.032

A

To the hundredths place.

18.03

This is an addition problem, and 6.03 is accurate only to the hundredths place, so you can’t go any farther than the hundredths place in your answer.

275
Q

An idea, event, or object can be represented by a ____ to help people better understand it.

A

model

276
Q

Studying the effect of one thing on another in order to test a hypothesis is a(n) ____.

A

experiment

277
Q

Observation or Inference?

“The sky looks blue today”

A

Observation

(You used one of your five senses)

278
Q

“I have a hypothesis about that”

A

Statement by someone who does understand the difference between a theory and a hypothesis

279
Q

The amount of matter in an object.

A

Mass

280
Q

kilogram

Is a unit of?

A

Mass

281
Q

newton

Is a unit of?

A

Force

282
Q

meter

Is a unit of?

A

Distance

283
Q

inch

Is a unit of?

A

Distance

284
Q

kg m/sec

Is a unit of?

A

Momentum

285
Q

grams x miles/hr

Is a unit of?

A

Momentum

286
Q

m/(s x s)

Is a unit of?

A

Acceleration

287
Q

m/s2

Is a unit of?

A

Acceleration

288
Q

m/s

Is a unit of?

A

Speed

289
Q

m/s - North

Is a unit of?

A

Velocity

290
Q

miles/hr

Is a unit of?

A

Speed

291
Q

cm/day

Is a unit of?

A

Speed

292
Q

miles East

Is a unit of?

A

Displacement

293
Q

miles/hr - West

Is a unit of?

A

Velocity

294
Q

m/s SouthEast

Is a unit of?

A

Velocity

295
Q

Pounds

Is a unit of?

A

Force

296
Q

kiloNewtons

Is a unit of?

A

Force

297
Q

milliNewtons

Is a unit of?

A

Force

298
Q

A force is a

A

Push or a Pull

299
Q

Normal Force means a force ___________ to a surface

A

Perpendicular

300
Q

Normal

A

Perpendicular

301
Q

Another way to say perpendicular

A

Normal

302
Q

How can you determine the direction in which friction acts upon a moving object

A

Friction will act in the direction opposite of the motion of the object.

303
Q

Definition of Mass

A

The amount of matter in an object.

(Each time you add an atom to an object, you add mass)

304
Q

Definition of Weight

A

The force of gravity upon an object.

305
Q

Mass and Weight mean ____________ things.

A

Different

306
Q

Formula for finding Weight

Weight = ___________ x ____________

A

Weight = mass x gravity

307
Q

What is this thing?

(scroll down and look at entire picture)

A

Your secret weapon to get 4 questions right on the upcoming test.

308
Q

What can this tell you about mass and weight?

A

The Earth’s gravity applies a force of

9.8-Newtons to a 1-kg mass

309
Q

If you took this thingy to the moon and looked at it, the mass would _______________?

A

Stay the same.

The 1-kg label on th object will still say 1-kg, and it will still be correct.

310
Q

If you took this thingy to the moon and looked at it, the weight would _______________?

A

Go down.

The moon has less gravity, so the red needle would only point to about 2.

311
Q

What can this thingy tell you about weight?

A

Weight is a force.

312
Q

The force of gravity upon an object

A

weight

313
Q

Two definitions of acceleration

A

Change in speed or direction

or

Change in Velociy

314
Q

Formula for acceleration

Accleration =

A

Acceleration = change in velocity/change in time

can also be written as:

a = Δv / Δt

315
Q

Mass means pretty much the same thing as ________

A

Inertia

316
Q

If there is no air friction, which would experience a greater acceleration when dropped off a cliff, a large rock or a small rock?

A

Neither, both would accelerate at the same rate, and both would reach the ground at the same time.

317
Q

Gravitational Field Strength near the Earth’s surface

A

9.8 newtons/kilogram

318
Q

The word “static” means….

A

at rest

319
Q

Static Friction means

A

The force of friction preventing a motionless object from moving.

320
Q

Sliding Fricition means…

A

The force of friction impeding the motion of an object sliding across a surface.

321
Q

Air Friction

A

The force of friction impeding the motion of an object fighting its way through the air.

(It has to bump the air molecules out of the way)

322
Q

You can reduce the friction between to sliding surfaces by coating the surfaces with a ______________.

A

Lubricant

(oil, grease. etc)

323
Q

What are these things?

A

Ball Bearings

324
Q

What would happen to your mass if you left Earth and went to Jupiter?

A

Nothing.

Mass is a measure of how much “stuff” or matter there is in an object.

325
Q

What would happen to your weight if you left Earth and went to Jupiter?

A

Your weight would go up.

Jupiter has a much stronger gravitational field than the Earth. Weight is the pull of gravity upon an object.

326
Q

Interaction

A

When two objecst have an effect upon each other.

327
Q

Three most common types of interaction

A

Touch

Gravity

Friction

328
Q
A
329
Q

______________ is a science word. It is used to sort of describe how much of an impact an object might make in a collision.

A

Momentum.

Momentum = Mass x Velocity

330
Q

Definition of Mass

A

The amount of matter in an object.

(Each time you add an atom to an object, you add mass)

331
Q

Definition of Weight

A

The force of gravity upon an object.

332
Q

Mass and Weight mean ____________ things.

A

Different

333
Q

Formula for finding Weight

Weight = ___________ x ____________

A

Weight = mass x gravity

334
Q

What is this thing?

(scroll down and look at entire picture)

A

Your secret weapon to get 4 questions right on the upcoming test.

335
Q

What can this tell you about mass and weight?

A

The Earth’s gravity applies a force of

9.8-Newtons to a 1-kg mass

336
Q

If you took this thingy to the moon and looked at it, the mass would _______________?

A

Stay the same.

The 1-kg label on th object will still say 1-kg, and it will still be correct.

337
Q

If you took this thingy to the moon and looked at it, the weight would _______________?

A

Go down.

The moon has less gravity, so the red needle would only point to about 2.

338
Q

What can this thingy tell you about weight?

A

Weight is a force.

339
Q

The force of gravity upon an object

A

weight

340
Q

Two definitions of acceleration

A

Change in speed or direction

or

Change in Velociy

341
Q

Formula for acceleration

Accleration =

A

Acceleration = change in velocity/change in time

can also be written as:

a = Δv / Δt

342
Q

Mass means pretty much the same thing as ________

A

Inertia

343
Q

If there is no air friction, which would experience a greater acceleration when dropped off a cliff, a large rock or a small rock?

A

Neither, both would accelerate at the same rate, and both would reach the ground at the same time.

344
Q

Gravitational Field Strength near the Earth’s surface

A

9.8 newtons/kilogram

345
Q

The word “static” means….

A

at rest

346
Q

Static Friction means

A

The force of friction preventing a motionless object from moving.

347
Q

Sliding Fricition means…

A

The force of friction impeding the motion of an object sliding across a surface.

348
Q

Air Friction

A

The force of friction impeding the motion of an object fighting its way through the air.

(It has to bump the air molecules out of the way)

349
Q

You can reduce the friction between to sliding surfaces by coating the surfaces with a ______________.

A

Lubricant

(oil, grease. etc)

350
Q

What are these things?

A

Ball Bearings

351
Q

What would happen to your mass if you left Earth and went to Jupiter?

A

Nothing.

Mass is a measure of how much “stuff” or matter there is in an object.

352
Q

What would happen to your weight if you left Earth and went to Jupiter?

A

Your weight would go up.

Jupiter has a much stronger gravitational field than the Earth. Weight is the pull of gravity upon an object.

353
Q

Interaction

A

When two objecst have an effect upon each other.

354
Q

Three most common types of interaction

A

Touch

Gravity

Friction

355
Q

What does this stand for?

ΣF

A

Sum of Forces

356
Q

Sum of Forces, or ΣF, means the same thing as:

A

Net Force

357
Q

Friction

A

The force impeding the motion of an object scraping across a surface or plowing through the air.

358
Q

Kinetic Friction

A

The force impeding the motion of a moving object.

359
Q

Net Force

A

The overall force that remains after all “cancelling” of forces has been taken into account.

360
Q

Unbalanced Force means that the Net force is ___________.

A

Non-Zero

361
Q

Normal Force

A

A force at right angles to a surface

362
Q

A force that is perpendicular to a surface

A

Normal Force

363
Q

Equilibrium

A

When all forces upon an object cancel out.

364
Q

If an object has a constant velocity, what other things do you know?

A

Net Force = Zero

Acceleration = Zero

Sum of Forces = Zero

Its in Mechanical Equilibrium

365
Q

If an object has a Net Force = Zero, what other things do you know?

A

It has a constant velocity

Acceleration = Zero

Sum of Forces = Zero

Its in Mechanical Equilibrium

366
Q

If an object has an acceleration of zero what other things do you know?

A

It has a constant velocity

Net Force = Zero

Sum of Forces = Zero

Its in Mechanical Equilibrium

367
Q

If the Sum of Forces upon an object is zero, what other things do you know?

A

It has a constant velocity

Net Force = Zero

Acceleration = Zero

Its in Mechanical Equilibrium

368
Q

If an object is in equilibrium, what other things do you know?

A

It has a constant velocity

Net Force = Zero

Acceleration = Zero

Sum of Forces = Zero

369
Q

Uniform Acceleration

A

A constant, steady acceleration caused by a constant, steady net force.

(Hint, in high school science, all accelerations studied will be uniform.

370
Q

An object is in free fall when….

A

the only force acting upon it is gravity.

(The object could be going up, sideways, or down)

371
Q

An object has been thrown upward. The only force acting upon the object is gravity. We would say that this object is…

A

in free fall.

372
Q

An object has been thrown sideways off of a cliff. The only force acting upon the object is gravity. We would say that this object is…

A

in free fall.

373
Q

An object that is “falling freely” is

A

in free fall.

(Has only one force acting upon it…gravity)

374
Q

Resistance

A

The act of opposing something.

375
Q

Air resistance

A

The force, caused by the air, opposing the motion of an object.

376
Q

Gravity

A

A force that exists between ANY two objects that have mass.

377
Q

Earth’s Gravitational Field

A

The area around the Earth that is influenced by the Earth’s gravity.

(Put an object in Earth’s gravitational field and it will tend to “fall” toward the Earth)

378
Q

Moon’s Gravitational Field

A

The area around the Moon that is influenced by the Moon’s gravity.

(Put an object in the Moon’s gravitational field and it will tend to “fall” toward the Moon)

379
Q

Jupiters’s Gravitational Field

A

The area around Jupiter that is influenced by Jupiter’s gravity.

(Put an object in Jupiter’s gravitational field and it will tend to “fall” toward Jupiter)

380
Q

What is the strength of Earth’s gravitational Field

A

9.8 N/kg

This means that the Earth will apply a gravitational force of 9.8 newtons for every 1 kilogram of mass.

381
Q

Inclined Plane

A

A hill.

(A plane is a flat surface. If it is inclined, you have a hill)

The purple part below.

382
Q

Inclined Ramp

A

An angled surface you might push or pull an object up.

In the picture below, the box is being pulled up the green “Inclined Ramp.”

383
Q

Both of these cars were going 35-mph before the collision, why did the Smart Car lose?

A

Momentum = Mass x Velocity

The smart car has less mass, so it has less momentum.

384
Q

What are these?

A

These are the SI fundamental units.

385
Q

What are the fundamental units of speed?

A

meters / second

386
Q

What are the fundamental units of force?

A

kg • m/s2

(Kilograms times meters per second squared)

(notice that this is a combination of the fundamental units in the table below)

387
Q

What are the fundamental units of time?

A

s

(seconds)

388
Q

What are the fundamental units of acceleration?

A

m/s2

(meters per second squared)

(notice that this is made up of “fundamental units” from the table below)

389
Q

Reaction Time

A

The interval between a stimulus and your response.

Example:

The time between when you see a mouse and when you scream.

390
Q

What are the fundamental units of mass?

A

kg

(kilograms)

391
Q

“At Rest”

A

Not moving

392
Q

“follows a straight-line-path”

A

moves in a straight line

393
Q

Inertia

A

An object’s resistance to a change in velocity.

(Means almost the same thing as mass)

394
Q

Density

A

mass/volume

395
Q

Order the following items from least dense to most dense.

Rock

Styrofoam

Lead

Water

A

Styrofoam

Water

Rock

Lead

396
Q

Volume

A

How much space an object takes up.

397
Q

What is the “water displacement method” for determining the volume of an object?

A

Put water in a container. Submerge the object in the water. See how much the water rises.

398
Q

“Weigh an Object”

A

Using a scale to find out how much gravity is pulling down upon an object.

(Note: the reading on the scale would change if you went to the moon.)

399
Q

“Mass an Object”

A

Using a balance to determine the mass of an object.

(Note: if you took this to the moon, the balance would still read the same amount. Why?)

400
Q

Constant Speed

A

**Ding! Ding! Ding! Ding! Ding! Ding! Ding! Ding! Ding! Ding! Ding! Ding!Ding! Ding! Ding! Ding! Ding! Ding!Ding! Ding! Ding! Ding! Ding! Ding!Ding! **

Net Force = 0
Sum of Forces = 0
Its in Equilibrium
Newton’s First Law
Acceleration = 0

401
Q

Blah blah blah blah blah bladdady blah constant speed blah blah blah blah blah blah yada blah.

A

Ding! Ding! Ding! Ding! Ding! Ding! Ding! Ding! Ding! Ding! Ding! Ding!Ding! Ding! Ding! Ding! Ding! Ding!Ding! Ding! Ding! Ding! Ding! Ding!Ding! Ding! Ding! Ding! Ding! Ding!

Net Force = 0
Sum of Forces = 0
Its in Equilibrium
Newton’s First Law
Acceleration = 0

402
Q

Yadda blah, yackity yack blahdidy blah, at a constant velocity blah yaddidy blah yabba dabba do diddtily bloogalsnort.

A

Ding! Ding! Ding! Ding! Ding! Ding! Ding! Ding! Ding! Ding! Ding! Ding!Ding! Ding! Ding! Ding! Ding! Ding!Ding! Ding! Ding! Ding! Ding! Ding!Ding! Ding! Ding! Ding! Ding! Ding!

Net Force = 0

Sum of Forces = 0

Its in Equilibrium

Newton’s First Law

Acceleration = 0

403
Q

Satellite

A

Any object that orbits the Earth

(Spaceships, the moon, asteroids, etc)

404
Q

Non-Zero

A

Not equal to zero

405
Q

“Applied”

A

Put upon.

“A 13-N force was applied to a rock,” means that you pushed or pulled on the rock with a force of 13-N.

406
Q

Frictionless

A

No friction AT ALL.

Even more slippery than the slipperiest ice!

407
Q

“Releases”

A

Drops

This would mean that you didn’t “throw” the object down, so it starts with an intitial velocity of zero.

408
Q

“Released”

A

Dropped

(Again, initial velocity is zero)

409
Q

“Drops”

A

Not thrown up or down.

(If a boy “drops” a rock off a cliff, the initial velocity would be zero)

410
Q

“Throws”

A

Gives an initial velocity to.

(Can be up, down, or any other direction)

411
Q

Suspended

A

Hanging From

412
Q

“Acted Upon”

A

“To exert or have an effect upon.”

A force of 20 Newtons “acted upon” the the block to the right.

413
Q

Variable

A

Changing

A “variable” horizontal force acted upon the object.

414
Q

What does the word, “experience” mean in the following context?

The object “experienced” a lot of friction.

A

It means “encountered” or “was subjected to.”

The object “encountered” a lot of friction

The object “was subjected to” a lot of friction.

415
Q

Towed

A

Pulled

416
Q

What does “neglecting” mean in the following sentence?

“Neglecting” air friction, the Earth’s gravitational field causes object to accelerate at 9.8 m/s2.

A

It means “Ignoring”

“neglecting air friction,” means the same thing as “ignoring air friction.”

417
Q

What is this?

A

Its a bottle rocket!

418
Q

What does the word “falls” mean in the following sentence?

A rock “falls” from the edge of a cliff.

A

V0 = 0 m/s

“Falls” means that the rock was not thrown down or up. Thus, it has an intial velocity of zero.

419
Q

What does the word “approximately” mean in the following sentence?

The weight is “approximately” 5-newtons

A

It means “close to” or “about.”

For example, if the weight is truly 4.9-newtons,

we could say it is “approximately” 5.0-newtons

or “about” 5.0-newtons.

420
Q

What SI measurment unit would you use to measure weight?

A

Newtons

Weight is a force.

421
Q

Defined as “the ability to cause a change.”

A

Energy

422
Q

Stored Energy is often called

A

Potential Energy

423
Q

In science, work is often defined as

A

The change in energy caused by a force.

Work = Force x Distance

424
Q

What are two things you could change about a car that would increase its ability to accelerate?

A

Make it lighter

Make the engine more powerful.

Less mass means more acceleration and more force means more acceleration.

425
Q

What is the ONLY reason some obects fall more quickly than others when released?

A

Air Friction!

If there were no air, ALL objects would fall at the same rate.

426
Q

“Uniform Linear Motion”

is just a physicsy way of saying….

A

“Moving in a straight line at a steady speed.”

427
Q
A
428
Q
A
429
Q
A
430
Q
A
431
Q

A box is sitting on the floor. The force you must apply to start the box in motion must be a tiny bit bigger than the force of _______ ______ on the box.

A

Static Friction

432
Q

You are pushing a box across a floor.

The force you must apply to keep the box moving at a constant speed will be equal to the force of __________ ___________ on the box.

A

Sliding Friction

(aka Kinetic Friction)

433
Q

µm

A

micrometer

“µ” is the symbol for the metric prefix “micro”

434
Q

µg

A

microgram

“µ” is the symbol for the metric prefix “micro”

OLD - R-PS Semester Exam (1 decks)

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