Physical Quantities & Measurement

What is a base quantity?

• A quantity derived from base quantities

• A physical quantity measured in derived units

• A fundamental physical quantity measured in standard units

• A quantity that changes with conditions

Which is an example of a derived quantity?

• Length

• Time

• Velocity

• Mass

What is the SI unit for mass?

• Gram

• Kilogram

• Pound

• Ounce
  

How is 0.0009 seconds expressed using metric prefixes?

• 9 μs

• 9 ms

• 0.9 ms

• 9 ns

Convert 80 km/h to m/s.

• 22.2 m/s

• 20 m/s

• 25 m/s

• 18 m/s