Unit Conversion & Sig Figs

The kilogram is defined by a hunk of platinum and iridium known as the _____

• Standard Unit Kilogram
• Kilogram of Science
• International Prototype Kilogram
• Platinum Iridium Kilogram

The International System of Units only includes _____ base units

• five
• six
• seven
• eight

In the International System of Units, how many derived units are possible?

• seven
• 21
• 6.02 x 10²³
• an infinite number

Which quantity has the units of length divided by time?

• distance
• speed
• acceleration
• displacement

Which quantity has the units of mass multiplied by meters per second per second?

• force
• power
• acceleration
• work

Quote: "True greatness is when your name is spelled _____"

• in all uppercase letters
• correctly
• on a Thought Bubble graphic
• with a lowercase letter

Which of the standard base units is derived from an actual value though not a universal one?

• the meter
• the ampere
• the second
• the mole

What is 1/60th of 1/60th of 1/24th of the time it takes for the Earth to rotate a single time?

• one second
• one minute
• one hour
• one day

Seconds are slowly becoming less and less based on reality because _____

• Earth's rotation is slowing down
• Earth's rotation is speeding up
• Earth's orbit is changing
• Earth's axis is tilted

Which space probe crashed because instructions were in the wrong units?

• the Mars Observer 
• the Mars Polar Lander 
• the Mars Climate Orbiter
• Rosetta