Forms of Energy

What is potential 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.

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.

When does an object have no kinetic energy?

• When it's at rest (not moving)

• When it's moving very slowly.

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

• When it has no electrical charge.

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 does a yo-yo have the most potential energy?

• When it's at its highest point.

• When it's at its lowest point.

• When it's moving between its highest and lowest points.

• When it's moving at its top speed.

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 mass.

• 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?

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Which is the best synonym (word that means the same) for potential energy?

• Stored energy

• Energy of motion

• Energy from gravity

• Mechanical energy

Why do objects at high elevations have more potential energy than objects at low elevations?

• Because the thinner air at higher elevations means objects have a greater potential to move very fast

• Because objects at high elevations are closer to the sun, which is the source of all energy on earth

• Because objects at high elevations tend to move slower than objects at low elevations

• Because gravity gives objects at high elevations the potential to fall much further