Gravitation Unit Study Tool

While the man holds both objects still, which one feels a stronger pull from gravity?

• The textbook

• The paper

• They are equal

On the moon with no air resistance, as the objects fall, which one feels a stronger gravitational acceleration?

• The textbook

• The paper

• They are equal

If the man drops both objects from a cliff on Earth with air resistance, which one will hit the ground first?

• The textbook

• The paper

• They would hit at the same time

On Earth, does gravity pull on all objects with the same strength?

• True

• False

A bowling ball and a soccer ball are dropped from a building. If air resistance is ignored, will they hit the ground at the same time?

• Agree

• Disagree

A child jumping on a trampoline reaches 3 feet in the air. Where is the energy involved?

• Stored as gravitational potential energy (GPE)

• Stored in the trampoline as elastic energy (EPE)

• Stored as kinetic energy (KE)

• Stored as chemical energy (CPE)

As she falls back to 1 foot above the trampoline, what energy does she have? (Choose 2 that apply.)

• Gravitational potential energy

• Elastic potential energy

• Kinetic energy

• Chemical potential energy

A soccer ball is held 10 feet above the ground, then moved to 5 feet. When does it have more gravitational potential energy?

• 10 feet

• 5 feet

• The energy is the same

Which of the following is not considered a projectile?

• A stone thrown across a river

• A baseball hit by a bat

• A rocket blasting off into space

• A motorcycle jumping off a ramp

Why do horizontally launched objects and dropped objects reach the ground at the same time, when air resistance is negligible?

• They are only experiencing acceleration in the vertical direction.

• They are only experiencing acceleration in the horizontal direction.

• A horizontally launched object and dropped object would not reach the ground at the same time.