Danger: Falling Objects

What did people historically believe about the falling speeds of objects?

• Objects do not fall at all

• All objects fall randomly

• Heavier objects fall faster than lighter ones

• Heavier objects fall at the same speed as lighter ones

What was unique about the experiment conducted by Dave Scott on the Moon?

• He demonstrated that gravity does not exist on the Moon

• He found that objects fall slower on the Moon

• He showed that without air, a feather and a hammer fall at the same rate

• He proved that objects fall faster on the Moon

Why do objects fall at different speeds on Earth?

• Because of different weights

• Due to the Moon's gravitational pull

• Because Earth is not a perfect sphere

• Due to air resistance

In the Earth experiment with two pieces of paper, why did the flat paper fall slower?

• It was lighter

• It encountered more air resistance

• It was thrown higher

• Gravity was weaker on it

What can you conclude about the effect of air resistance based on the paper experiment?

• It affects falling speeds based on the shape of the object

• It makes objects fall at the same speed

• It decreases the mass of objects

• It has no effect on falling speeds