Metric Conversions and Units

23.5 cm = ? m

• .0235

• .235

• 2.35

• none of these is correct

65.8 mph = ? m/s

• 147

• 31.4

• 29.4

• none of these is correct

Which of these is in the correct order, largest to smallest?

• Giga, kilo, mega, deci, centi, micro, nano

• mega, giga, kilo, deci, centi, micro, nano

• giga, mega, kilo, centi, deci, micro, nano

• none of these is correct

5.28 ng is correctly written in scientific notation as...

• 5.28 E-6 g

• 5.28 E9 g

• 5.28 E-9 g

• none of these is correct

12.42 micrometers is written in meters as ...

• 1.242 E-5 m

• 1.242 E-7 m

• 1.242 E5 m

• none of these is correct

Because a Coulomb is a large unit of charge, we often have measurements in microcoulomb or nanocoulomb values. How would 56 nanocoulombs be typed into your calculator?

• 56 E-6

• 56 E-9

• 56 E9

• none of these is correct

A toy car is moving at 8.552 cm/s. Convert this to mph.

• .03842 mph

• 19.13 mph

• .1913 mph

• none of these is correct

A metal cube is 2.50 cm on a side. Calculate the volume in meters cubed, please.

• 1.56 E-5

• 1.56 E1

• .156

• no answer is correct

How should you enter a frequency of 344.6 gigahertz into your calculator?

• 344.6 E6

• 344.6 E9

• 344.6 E12

• none of these is correct

A classmates steps on a bathroom scale and it reads 135 lbs. What is this in newtons? 1 kg = 2.2 lbs and 1 kg = 9.8 N.

• 500 N

• 30.3 N

• 61.4 N

• none of these is correct