Unit 1 Science Test on the Metric System, etc

Question 1

Metric System

Answer 1

Decimal measuring systems based on the meter, liter, gram, second, and degree as units of length, capacity (volume), mass, time, and temperature. It builds units using a basic unit and a set of prefixes

Question 2

Length:

Answer 2

Meter

Question 3

Volume:

Answer 3

Mass

Question 4

Mass:

Answer 4

Gram

Question 5

Time:

Answer 5

Second

Question 6

Temperature:

Answer 6

Celsius

Question 7

What is the letter(s) that stand for the following words:

Kilo:
Hecto:
Deka:
Centi:
Milli

Answer 7

K
H
Da
C
M

Question 8

Extra note on the metric system:

Answer 8

Large and small metric units are formed by linking a BASIC UNIT with a PREFIX. For example, linking the prefix kilo- to the basic unit meter gives you the kilometer, which means 1,000 meters. Similarly linking this prefix milli- to the basic unit liter gives you milliliter which means 0.001 (one thousandth) of a liter.

Question 9

What does kilo- mean?

Answer 9

1,000 (one thousand)

Question 10

What does hecto- mean?

Answer 10

100 (one hundred)

Question 11

What does deka- mean?

Answer 11

10 (ten)

Question 12

What does deci- mean?

Answer 12

0.1 (one tenth)

Question 13

What does centi- mean?

Answer 13

0.01 (one hundredth)

Question 14

What does milli- mean?

Answer 14

0.001 (one thousandth)

Question 15

What is the ladder method?

Answer 15

A method where you start at one point and jump up or down to a different unit, converting it to a different unit.

Ex. 4km=4,000 m

To the right the number gets larger while to the left the number gets smaller.

The number of jumps, is how many times you move the decimal point to the left or right.

Question 16

What are the steps in the ladder method?

Answer 16

1st-Determine your starting point
2nd-Count the “jumps” to your ending point
3rd-Move the decimal the same number of jumps in the same direction

Question 17

What is three possible options for the basic unit?

Answer 17

Meter, Liter, and Gram

Question 18

Meter Stick Definition

Answer 18

Measuring stick, one meter long marked off in centimeters (cm) and millimeters (mm) used to measure the length or distance between two points.

Question 19

What is the smallest mark on a meter stick?

Answer 19

the smallest marks (units) on a meter stick are millimeters (mm)

Question 20

What is the longest lines on a meter stick?

Answer 20

The longest lines that are numbered are centimeters (cm). Usually this is the unit you will measure with when using a meter stick.

Question 21

Common conversions for the following:

1. 1km=__m
2. 1m=__cm
3. 1m=__mm
4. 1cm=__mm

Answer 21

1. 1,000 m
2. 100 cm
3. 1,000 mm
4. 10 mm

Question 22

Steps to use a meter stick:

Answer 22

1. Line the zero line of the meter stick up with the end of the object you are measuring
2. Note the numbered line that the edge of the object is just past.
3. Count the smaller lines after the numbered line
4. Write down your measurement being sure to write down the units you are measuring with.

Question 23

Triple-Beam Balance Definiton

Answer 23

instrument used to measure the mass of an object

Question 24

Mass definition

Answer 24

measure of how much matter is in an object

Question 25

Weight Definition

Answer 25

measure of the force of gravity on an object

Question 26

How to prepare a triple beam balance…

Answer 26

Step 1: Remove any weights from the platform
Step 2: remove any attachment weights from the end of the beams
Step 3: set all weight poises to the zero setting

Question 27

How to measure the mass of an object:

Answer 27

Step 1: place the unknown in the center of the platform
Step 2: move the 100g poise to the right until the index pointer swings below the zero mark, then back it up one notch
Step 3: Repeat this process with the 10g poise
Step 4: Slowly move the 1g poise until the index pointer lines up with the zero mark

Question 28

Reading a trip-beam balance

Answer 28

Add up the 100g scale to the 10g scale, to the 1g scale. After adding them all together that is your answer.

Question 29

Volume Definition

Answer 29

The amount of space matter (solid, liquid, gas) occupies

Question 30

Volume Formula

Answer 30

Volume= Length x Width x Height

*(multiply dimensions as well as units).

Question 31

Graduated Cylinder Definition

Answer 31

Instrument used to measure the volume of a liquid, or the amount of space it takes up.

Question 32

When measuring for the volume how do you tell how much water is in the graduated cylinder?

Answer 32

You measure where the meniscus is.

Question 33

What is the Water Displacement Method?

Answer 33

A technique used to measure the volume of objects by calculating how much water the object displaces or pushed aside when it’s placed into a sample of water.

Question 34

How do you determine the volume in the Water Displacement method?

Answer 34

You determine the volume of the object by subtracting the volume of the water without the object from the new measurement of water volume with the object.

Question 35

Density Definition

Answer 35

Measurement of how much mass is contained in a given volume. To calculate the density of an object, divide its mass by its volume

Question 36

Density Units

Answer 36

g/cm^3 or g/ml

Question 37

Density Formula

Answer 37

Density= mass/volume

Question 38

Volume Formula:

Answer 38

volume=mass/density

Question 39

mass formula

Answer 39

mass=volume x density

Question 40

Density of water=

Answer 40

1.0g/mL

Question 41

Density notes

Answer 41

physical property that is the same for all samples of a substance

Question 42

How would an object sink in its substance?

Answer 42

An object more dense than the fluid in which it is immersed sinks.

Question 43

How would an object float?

Answer 43

An object less dense than the fluid in which it is immersed in floats.