Order of magnitude, fundamental units, and metric prefixes 4

What is the fundamental unit for temperature?

• Fahrenheit

• Celsius

• Kelvin

• Joule

What is the fundamental unit for the amount of a substance?

• gram

• kilogram

• liter

• mole

The Ampere is the fundamental unit for what quantity?

• electric current

• electric voltage

• electric resistance

• electric power

The candela is the fundamental unit for what quantity?

• light intensity

• radiant power

• solar intensity

• solar luminosity

Which of the following is NOT a fundamental unit?

• second

• kilogram

• kilometer

• mole

What is the order of magnitude for the temperature of the Sun -- which is approximately 5778 Kelvin?

• 10⁴

• 5.778 x 10⁴

• 10⁵

• 5.778⁴

What is the order of magnitude for the diameter of a eukaryotic cell -- which is approximately 0.00001 meters?

• 10^-3 meters

• 10^-4 meters

• 10^-5 meters

• 10^-6 meters

The distance from the Earth to Mars is approximately 170.8 Gm. How would you write this distance without a metric prefix?

• 1.708 x 10⁹ meters

• 170.8 x 10⁹ meters

• 1.708 x 10¹² meters

• 170.8 x 10¹² meters

The wavelength of green light is approximately 0.000000532 meters. How would you write this using a metric prefix? (Hint: work backwards from the answers, if you need to)

• $532\ nm$

• $532\ \mu m$

• $5.32\ \mu m$

• $5.32\ nm$

The mass of the Moon is approximately  $73.5\ \times\ 10^{24}\ grams$ .

Write this number with a metric prefix.

•  $7.35\ Yg$  

•  $7.35\ Zg$  

•  $73.5\ Zg$  

•  $73.5\ Yg$