1.5 Gravitational potential energy and kinetic energy (Revision)

The energy that something has because of its position.

• Kinetic energy

• Gravitational potential energy (GPE)

• Light energy

Gravitational potential energy depends on...........................

• The distance from the centre of the Earth.

• The object's speed

• The object’s mass.

A diver stands on a diving board that is 10 m above the surface of a swimming pool. At this height, her GPE is 6000 J.

Solve #5

• 6000J

• 6010J

• 4500J

• 3000J

• 0J

As you travel up in a lift your gravitational potential energy decreases.

• True

• False

The energy that something has because of its motion.

• Kinetic energy

• Gravitational potential energy (GPE)

• Light energy

Kinetic energy depends on...........................

• The distance from the centre of the Earth.

• The object's speed

• The object’s mass.

If two lions have the same mass but are running at different speeds the faster lion will have ....................... kinetic energy.

• less

• more

• the same

When things move up and down, or swing, energy is changed between GPE and kinetic energy

• True

• False

When things move up and down, or swing, the increase in GPE is equal to the decrease in kinetic energy.

• False

• True

When things move up and down, or swing.

For the instant that the ball is stationary it has ...........................

• no kinetic energy

• no potential energy