Gravity and Motion

If a feather and a hammer are dropped at the same time on the moon, where there is no atmosphere, which one will hit the ground first?

• Neither, there is no gravity on the moon.
• hammer because it has more mass
• feather because it has less mass
• both will hit at the same time

Attracts all objects towards each other

• gravity
• mass
• weight
• inertia

Why does a ball at ground level move downwards?

• There is no force on the ball
• Gravity pulls the ball toward the ground
• A force pulls the ball in the direction it was thrown
• Forces pull on the ball in both directions

What does the strength of gravity between two objects depend upon?

• Mass & distance
• Mass & weight
• Gravity & inertia
• Inertia & mass

The amount of matter in an object

• mass
• weight
• inertia
• gravity

The force of gravity on an object

• mass
• weight
• volume
• inertia

the tendency of an object to resist a change in motion

• Gravity
• Inertia
• Weight
• Mass

As an object's mass increases, its gravitational pull will ____________.

• decrease
• increase
• stay the same
• get weaker

Gravity pulls any object on or near Earth toward the planet's center. 

• True
• False

All objects in the universe have a gravitational attraction to each other. 

• True
• False