SI Units and Prefixes Quiz

What is the SI unit for length?

• Meter

• Kilogram

• Second

• Ampere

What is the SI unit for mass?

• Meter

• Kilogram

• Second

• Mole

What is the SI unit for time?

• Ampere

• Candela

• Second

• Kelvin

Convert 5 kilometers to meters.

• 500 m

• 5,000 m

• 50,000 m

• 0.5 m

Convert 2,000 milligrams to grams.

• 0.2 g

• 2 g

• 20 g

• 200 g

Convert 3 hours to seconds.

• 10,800 s

• 1,800 s

• 108 s

• 3,600 s

Convert 25 nanometers to meters.

• 2.5×10−8 m

• 2.5×10−9 m

• 2.5×10−7 m

• 2.5×10−6 m

Convert 0.05 liters to milliliters.

• 5 mL

• 50 mL

• 500 mL

• 0.5 mL

What does the prefix "mega-" represent in the SI system?

• 10^6

• 10^3

• 10^-6

• 10^9

What does the prefix "milli-" represent in the SI system?

• 10^-2

• 10^-3

• 10^6

• 10^3