Converting Units

The mass of a container ship is 6.5 x 10⁶ kg. What would be an appropriate metric multiplier prefix to use to express this mass.

• micro (micrograms)

• Mega (megagrams)

• Giga (Gigagrams)

• nano (nanograms)

A computer takes 0.00087 seconds to complete a calculation. Which of the following conversions is correct?

• 870 microseconds

• 87 milliseconds

• 87 nanoseconds

• 8.7 centiseconds

How many seconds in 1 year, 14 days, 3 hours and 16 minutes? (assume not a leap year). Be sure to include the unit with your answer.

A 330mL can of Sprite contains 586 kJ of energy mostly from the 38 grams of sugar. Determine the number of kcal in a can of Sprite rounded off to a whole number. There are 4.184 J in one calorie of energy.

A bicycle ride is measured to be 32.44 km. Determine the distance in meters.

• 3244 m

• 32440 m

• 324400 m

• 3244000 m

The wavelength of ultraviolet light is approximately 50 nm. Determine this wavelength in meters.

• 5.0 x 10^-5 m

• 5.0 x 10^-6 m

• 5.0 x 10^-7 m

• 5.0 x 10^-8 m

A parsec (pc) is a distance unit that is 3.26 lightyears in length. One lightyear is 9.46 x 10¹⁵ m. Determine the distance to Alpha Centauri in meters if it is measured to be 1.34 pc away from Earth.

• 4.13 x 10¹⁶ m

• 3.89 x 10¹⁶ m

• 2.30 x 10¹⁶ m

• 4.31 x 10¹⁶ m

The mass of a table tennis ball is 2.7 grams. Determine the mass in kg. Be sure to include the unit.

1 Chinese RMB is equivalent to 15.5 Japanese Yen. Determine the RMB cost of a 124 Yen onigiri at a Lawson's in Osaka.

The current in LED is measured to be 87.3 mA. Determine the current in A. Be sure to include the unit.