Common Energy Transfers
Science: KS3, topic 3.1.3
Common Energy Transfers
Here are some common energy transfers.
Mechanical transfers
- Bicycle braking
- Energy transferred from the kinetic energy store → thermal energy store.
- Changing motion
- Energy transferred from the chemical energy store → kinetic energy store.
Gravitational and elastic
- Dropping an object
- Energy transferred from the gravitational potential energy store → kinetic energy store.
- Stretching a spring
- Chemical energy → elastic energy.
Releasing a spring
- Releasing a stretched spring
- Energy transferred from the elastic energy store → kinetic energy store.
Radiative transfers
- Candle burning
- Energy transferred from the chemical energy store → thermal energy store.
Electrical energy transfer
- A bulb in an electrical circuit
- Energy transferred from the chemical energy store → electrical energy store → thermal energy store.
Test yourself on Common Energy Transfers
Which of these is NOT a mechanical energy transfer?
A burning candle and a lit bulb both end with energy in the thermal energy store. What is different about the bulb's pathway?
Changing motion and stretching a spring both start by transferring energy from the same energy store. Which store do they share?