9.1 PE and KE

What is potential energy?

• The energy an object has due to its atomic structure.

• The energy an object has due to its chemical composition.

• The energy an object has due to its motion.

• The energy an object has due to its position or condition.

When does an object have no kinetic energy?

• When it's at rest.

• When it's moving very slowly.

• When the only force that's acting on it is gravity.

• When it has no electrical charge.

What is kinetic energy?

• The energy an object has due to its position or condition

• The energy an object has due to its motion

• The energy an object has due to its chemical composition

• The energy an object has due to its atomic structure

Which object has the most potential energy?

• A ball resting on the ground.

• A ball being thrown at 100 miles per hour.

• A ball on top of a refrigerator.

• A ball resting on the edge of a cliff.

When is potential energy transformed into kinetic energy?

• When an object at rest is lifted to a higher elevation.

• When an object at rest remains at rest.

• When an object at rest is put into motion.

• When an object in motion is stopped and put at rest.

What do potential and kinetic energy have in common?

• They're both related to density.

• They're both unrelated to size.

• They're both related to volume.

• They're both related to motion.

Four cars are positioned at the top of a hill. Which car has the most potential energy?

• A

• B

• C

• D

Which is the best synonym for potential energy?

• Stored energy

• Energy of motion

• Energy due to gravity

• Mechanical energy

When a pendulum swings, at which point is kinetic energy highest?

• 1
• 2
• 3
• 4

When a pendulum swings, at which point is potential energy at its greatest?

• 1
• 2
• 3
• 4