Chapter 3 Test

Question 0

Your calculator’s answer is read from this type of screen

Answer 0

Digital

Question 1

SI unit that represents the amount of particles of a substance

Answer 1

Mole

Question 2

A fraction equal to one that contains both the original unit and it’s equivalent value in a new unit

Answer 2

Conversion factor

Question 3

Indicates the precision of an instrument and helps scientist report measurements honestly

Answer 3

Significant digits

Question 4

System of measurement based on a decimal scale

Answer 4

Metric

Question 5

The accurately subdivided measuring units

Answer 5

Calibrated

Question 6

The result of comparing an unknown quantity to a standard unit

Answer 6

Measurement

Question 7

Any artificial device made for the pulse of refining, extending, or substituting for the human sense when measuring

Answer 7

Instrument

Question 8

What is the formula for percent error?

Answer 8

|observed value - accepted value|/ accepted value x 100%

Question 9

Give four of the seven base units of SI and the base dimension that each represents

Answer 9

Length: meter
Temperature: kelvin
Amount of particles in a substance: mole
Time: seconds

Question 10

Identify the correct prefix for hundredth

Answer 10

centi

Question 11

Identify the correct prefix for million

Answer 11

Mega

Question 12

Identify the correct prefix for tenth

Answer 12

Deci

Question 13

Identify the correct prefix for billionth

Answer 13

Nano

Question 14

Identify the correct prefix for thousandth

Answer 14

Milli

Question 15

Identify the correct prefix for thousand

Answer 15

Kilo

Question 16

Identify the correct prefix for millionth

Answer 16

Micro