Astronaut Experiment

On Earth, objects can seem to fall at different speeds because of ___

• atmospheric turbulence
• wind speed
• air resistance
• land breezes

Who was the astronaut that dropped a feather and a hammer on the Moon?

• David Scott
• Buzz Aldrin
• Neil Armstrong
• Chris Hadfield

In what year did David Scott perform his experiment on the Moon?

• 1954
• 1971
• 1995
• 2014

What was the result when a hammer and a feather were dropped on the Moon?

• the hammer hit the ground first
• the feather hit the ground first
• they both hit at the same time
• the hammer landed on the astronaut's foot

It's not a difference in gravity that causes objects to hit the ground at different times, it's ___

• a difference in air resistance
• a difference in masses
• a change in densities
• similarities in volume

In Earth's atmosphere, after attaching a parachute to the tennis ball, it ___

• takes less time to reach the ground
• takes longer to reach the ground
• takes the same time to reach the ground
• hits the ground harder

More friction means ___

• more air resistance, and a shorter time to hit the ground
• less air resistance, and a shorter time to hit the ground
• more air resistance, and a longer time to hit the ground
• less air resistance, and a longer time to hit the ground

An area in which there is no air or gas is called ___

• a vacancy
• a dust bin
• a vacuum
• a hole

In a vacuum, there is no air. No air means ___

•  no air resistance
• lots of air resistance
• no gravity
• lots of gravity

In a vacuum, objects dropped at the same height will hit the ground ___

• at the same time
• at different times
• at unpredictable times
• in no time flat