Energy

What is kinetic energy?

• The energy of motion
• A combination of two types of energy
• Stored energy
• How far something goes in a specific time

What is potential energy?

• The energy of motion
• A combination of two types of energy
• Stored energy
• How far something goes in a specific time

What is mechanical energy?

• The energy of motion
• The ability to cause motion (kinetic and potential energy)
• Stored energy
• How far something goes in a specific time

"As a roller coaster moves around a track, it sometimes has potential energy, it sometimes has kinetic energy, and it sometimes has both." What is this an example of?

• Energy changes
• Energy transfer

"A rolling marble has kinetic energy. If a moving marble hits a stationary marble, it transfers some of its kinetic energy, and the second marble begins to move." What is this an example of?

• Energy changes
• Energy transfer

The amount of potential energy plus the amount of kinetic energy it has equals its total...

• mechanical energy
• energy transfer
• energy change
• stopped energy

Your marble roller coaster will have...

• kinetic energy
• potential energy
• mechanical energy
• all answer choices

Look at the cars on the ramp example. What happens when the person lets the cars go?

• Potential energy turns to kinetic
• Kinetic energy turns to potential
• The energy transfers to the ramp
• The energy transfers to the person

How do you increase the potential energy of the toy?

• By turning the knob and tightening the spring
• By releasing the knob
• By letting it sit for longer
• By turning the toy off

A spaceship stuck high in a tree is an example of...

• Potential energy
• Kinetic energy
• Mechanical energy