Gravity

Which force does NOT act on falling leaves?

• friction

• gravity

• magnetic

• air resistance

Which effect does gravity have on how high a person jumps?

• The weaker the gravity, the lower the jump.

• The weaker the gravity, the higher the jump.

• The stronger the gravity, the higher the jump.

• Gravity does not influence how high a person jumps.

Which of the following objects would have the greatest gravitational pull exerted on another object on earth?

• sun

• moon

• stone

• earth

Which of the following is an example of resisting gravity?

• a rock rolling down a hill

• a coconut falling from a tree

• pouring water into the glass

• an airplane taking off from the ground

What is the direction of gravity between two objects?

A. sideways

B. toward each other

C. away from each other

D. perpendicular to each other

• sideways

• toward each other

• away from each other

• perpendicular to each other

What happens to the gravitational attraction between objects when the distance between them is increased?

• lesser

• nearer

• farther

• greater

In which heavenly body will an object hit its surface last when dropped at the same height and the same time?

• Earth

• moon

• Jupiter

• Saturn

Three 1-kg stones are thrown upward at the same height and the same time in different places, moon, earth, and Jupiter. In which place will the stone hit the ground first?

• moon

• Earth

• Jupiter

• meteor

Which action opposes gravity?

• skating downhill

• dropping a stone into a pond

• hammering a nail into a wooden plank on the floor

• lifting a box from the floor and placing it on top of the table

Which object has the weakest gravitational pull?

A. fist-sized rock

B. piece of paper

C. huge truck

D. the moon

• fist-sized rock

• piece of paper

• huge truck

• the moon