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Science > Test 1- Metric System > Flashcards

Test 1- Metric System Flashcards

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1
Q

What is the definition of standard?

A

Widely accepted and / or understood

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2
Q

What does universal mean?

A

Done or used by all in the world or in a particular group such as scientists.

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3
Q

When was the metric system created? By who?

A

In 1790s in France

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4
Q

What is the metric system based off of?

A

10

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5
Q

True or false: The International system of Units is a version of the metric system

A

True

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6
Q

Why does the Internation System of Units help?

A

Scientists can compare data and communicate with each other about their experiments

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7
Q

What are the six dimensions of measurement?

A

Length, Volume, Mass, Density, Temperature, Time

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8
Q

COMMON PREFIXES:
What does kilo mean?

A

1,000

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9
Q

CP:
What does hecto mean?

A

100

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10
Q

CP:
What does deka mean?

A

10

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11
Q

CP: What does deci mean?

A

0.1

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12
Q

CP:
What does centi mean?

A

0.01

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13
Q

CP:
What does milli mean?

A

0.001

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14
Q

What is the basic unit of length in the SI system?

A

Meter

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15
Q

What two units are smaller than a meter? How many fit in a meter?

A

Centimeter (100) and millimeter (1000)

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16
Q

What unit is bigger than a meter? How many meters fit in it?

A

Kilometer (1,000)

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17
Q

What is used to measure length?

A

A metric ruler

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18
Q

What is mass?

A

The amount of matter an object contains

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19
Q

What is the basic unit of mass?

A

Kilogram - for bigger things

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20
Q

How many grams in a kilogram?

A

1,000 grams

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21
Q

How many milligrams in a gram?

A

1,000 grams

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22
Q

What tool is used to measure mass?

A

A triple-beam balance.

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23
Q

How does a tirple beam balance work?

A

It compares the mass of the object you are measuring to a known mass.

24
Q

Modified T&F
Mass and weight are not the same because mass measures the amount an object contains and weight is a measure of force of air acting on an object.

A

False: Gravity

25
Q

What is volume?

A

The amount of space an object takes up

26
Q

What is the SI unit for volume?

A

The liter

27
Q

What do smaller liquids get measured by in volume?

A

Milliliter (1,000 in a liter)

28
Q

What do you use to measure volume?

A

A graduated cylinder for liquid volumes.

29
Q

What do you call the curve on a graduated cylinder?

A

A meniscus

30
Q

What would you use to measure the volume of a solid?

A

cm3

31
Q

What is density

A

The amount of mass contained in a given volume can tell if object will float (Less dense than liquid=yes)

32
Q

What is the formula for density?

A

Mass/volume

33
Q

What is the SI unit for time?

A

Second

34
Q

True or false; can the second be divided by multiples of ten to measure time?

A

True

35
Q

What is used to measure time?

A

Clocks, watches

36
Q

What are the two scales for temperature?

A

Celsius and Kelvin

37
Q

What is the official SI unit for temperature?

A

Kelvin, but scientists commonly use celsius

38
Q

What does water freeze and boil at on the celsius scale?

A

0 and 100

39
Q

What is a normal human body temperature? (C)

A

37 c

40
Q

True or false; there is something colder than 0 kelvin

A

False

41
Q

What is used to measure temperature?

A

A thermometer

42
Q

What do you call an explanation that has been tested a TON of times?

A

A scientific theory

43
Q

What do you call a set of rules that don’t try to explain themself?

A

Scientific Law

44
Q

What do you call the diverse ways in which scientists think and solve problems?

A

Scientific Inquiry

45
Q

What is the scientific method?

A

A set of general steps that scientists use to solve problems

46
Q

What is scientific inquiry?

A

The ongoing process of discovery in science; the diverese ways in which scientists study the natural world and propose explanations based on the evidence they gather.

47
Q

Hypothesis?

A

A possible explanation

48
Q

Three ways scientists communicate with each other

A

Talks, Internet (emails) articles

49
Q

Why is communicating important?

A

Others can repeat
Share and compare data
Collaborate

50
Q

What are three ways someone can test a hypothesis>

A

Design and experiment, conduct an investigation, make a model

51
Q

What are four ways that you can analyze data?

A

Chart or table, picture, graph, calculations

52
Q

Inquiry leads to

A

Inquiry

53
Q

What four questions are answered by science?

A

How does it work? How can I stay healthy? What is the best use of Earth’s resources?

54
Q

What is science?

A

The investigations and exploration of natural events and of new informations that results froom those investigations

55
Q

What are the 6 prefixes

A

Kilo, hecto, deca, unit, deci, centi, milli

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