Energy TB

Energy is

• an object's ability to change, move or work.

• movement of thermal energy.

• the amount of transfer that happens.

Potential Energy

• Heat energy.

• Energy of motion.

• Stored energy that hasn't been used.

Gravitational Potential Energy

• Energy due to how fast an object is moving.

• Energy due to the amount of thermal energy released.

• Energy due to an object's position above the Earth.

When an object is moving is

• Kinetic energy

• Potential energy

• Friction

Energy is transferred when

• it changes from one type to another.

• it moves from one place to another.

• it's at a higher altitude

The movement of thermal energy from hot to cold.

• Nuclear fusion

• Temperature

• Heat

Energy can be created and destroyed.

• True

• False

What energy type is always released during an energy transformation.

• Mechanical

• Chemical

• Thermal

• Light

What is the efficiency of an engine that gives off 85% thermal energy?

• 70%

• 185%

• 85%

• 15%

When materials touch each other this is known as

• Convenience

• Conduction

• Convection

• Conductor