Measurements and Quantities

How many significant figures does 0.0050 have?

• 1

• 2

• 3

• 4

One kilometer is equal to

• $1\times10^2$ meters

• $1\times10^3$ meters

• $1\times10^4$ meters

• $1\times10^6$ meters

The prefix micro is

•  $10^{-1}$  

•  $10^{-2}$  

•  $10^{-6}$  

•  $10^{-9}$  

The SI unit for time is

• second

• minute

• hour

• year

The speed of light is $3.0\times10^8$  m/s. Convert the speed of light to km/h.

•  $10.8$  km/h

•  $10.8\times10^8$  km/h

•  $1.08\times10^9$  km/h

•  $11\times10^8$  km/h

The two major unit systems are:

• USSR System

• Imperial System

• International System

• French System

Which of the following is not a fundamental physical quantity?

• Length

• Time

• Velocity

• Mass

Which of the following is a basic SI unit? Choose as many as appropriate.

• Kelvin

• Candela

• Kilogram

• Kilometer

Report the sum of 110 plus 1.53 with the correct number of significant figures.

• 110

• 111.5

• 111.53

• 112

Report the measurement 400 m with three significant figures.