Science - Chapter 2 - Test 9/26/13

Question 1

What is the abbreviation for the International System of Units?

Answer 1

SI

Question 2

What is the abbreviation for:

meter

Answer 2

meter (m)

Question 3

What is the abbreviation for:

centimeter

Answer 3

centimeter (cm)

Question 4

What is the abbreviation for:

millimeter

Answer 4

millimeter (mm)

Question 5

What is the abbreviation for:

kilometer

Answer 5

kilometer (km)

Question 6

What is the basic unit for measuring mass?

Answer 6

kilogram (kg)

Question 7

Scientists regularly _________________ length, ____________, volume, density, temperature, and time.

Answer 7

a. measure
b. mass

Question 8

The formula for measuring volume is _____________ times _____________ times ____________.

Answer 8

volume = L x W x H

Question 9

________________ is the measure of the amount of matter in an object.

Answer 9

Mass

Question 10

Measurement describes the world using ________________.

Answer 10

numbers

Question 11

Weight is a measure of the force of _______________ acting on an object.

Answer 11

gravity

Question 12

Volume is the amount of ______________ that an object of substance takes up.

Answer 12

space

Question 13

The ______________ system is a measurement system based on the number 10.

Answer 13

metric

Question 14

The metric system is a measurement system based on the number ________.

Answer 14

10

Question 15

To measure lengths smaller than a meter you use the _________________ (cm) and __________________(mm).

Answer 15

a. centimeter
b. millimeter

Question 16

The __________________ of an object is the object’s mass divided by it’s volume.

Answer 16

density

Question 17

The basic unit for length in the SI system is ______________(m).

Answer 17

meter

Question 18

Two objects of the same size can have different ________________.

Answer 18

masses

Question 19

The volume for measuring liquids or gases is the ______________(L).

Answer 19

liter

Question 20

You can measure your height in _______________.

Answer 20

meters

Question 21

The standard system of measurement used by scientists is the __________________________.

Answer 21

International System of Units (SI)

Question 22

Name the units for measuring length in order from smallest to largest.

Answer 22

1. millimeter (mm)
2. centimeter (cm)
3. meter (m)
4. kilometer (km)

Question 23

How much does each one equal?

1 cm = ____ mm

Answer 23

1 centimeter (cm) = 10 millimeters (mm)

Question 24

How much does each one equal?

1 m = _____ cm

Answer 24

1 meter (m) = 100 centimeters (cm)

Question 25

How much does each one equal? 1 m = _____ mm

Answer 25

1 meter (m) = 1,000 millimeters (mm)

Question 26

How much does each one equal? 1 km = ____ m

Answer 26

1 kilometer (km) = 1,000 (m)

Question 27

The median is the _______________ entry.

Answer 27

middle

Question 28

Time is a measurement of the period between __________ events.

Answer 28

two

Question 29

\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ refers to how close a measurement is to the true value.

Answer 29

Accuracy

Question 30

The mode is the number that appears ____________________ in a list of numbers.

Answer 30

most often

Question 31

In science we use the _____________ scale and _____________ scale to measure temperature.

Answer 31

a. Celsius scale b. Kelvin scale

Question 32

Name two devices used to measure time.

Answer 32

1. clocks 2. watches

Question 33

\_\_\_\_\_\_\_\_\_ is not a guess.

Answer 33

An estimate

Question 34

Precision refers to how close a _____________ of measurements are to each other.

Answer 34

group

Question 35

The ______________ is the middle number in a set of data,

Answer 35

median

Question 36

Estimates might be based on indirect \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_, calculations, \_\_\_\_\_\_\_\_\_\_\_\_\_, or samples.

Answer 36

a. measurements b. models

Question 37

\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ refers to how close a group of measurements are to each other.

Answer 37

Precision

Question 38

The _______________ (s) is the SI unit used to measure time.

Answer 38

second

Question 39

The range is the difference between the ______________ value and the least value.

Answer 39

greatest

Question 40

\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ is measured using a thermometer.

Answer 40

Temperature

Question 41

An estimate is an _____________________ of a number based on reasonable assumptions.

Answer 41

approximation

Question 42

The mean is the numerical _______________ of a set of data.

Answer 42

average

Question 43

You often use the word _______________ when you estimate.

Answer 43

about