Examples of Energy Transfer Flashcards

All 6 cards in this deck

A ball is thrown vertically upwards. Which store decreases and which increases as it rises?

The kinetic store decreases and the gravitational potential store increases.

A car brakes to a stop. Describe the change in the way energy is stored.

The kinetic store of the car decreases and the thermal store of the brakes and surroundings increases.

Water is boiled in an electric kettle. Describe the change in the way energy is stored.

Energy is transferred electrically from the mains to the thermal store of the water (and some to the surroundings).

An object is accelerated by a constant horizontal force. Describe the energy transfer.

The force does work on the object, so its kinetic store increases.

A moving object hits an obstacle and stops. Where is the energy from its kinetic store transferred to?

To the thermal store of the object, obstacle and surroundings (and some by sound waves).

Which energy store increases as a bungee cord is stretched?

The elastic potential store of the cord.