Electromagnetic waves transfer energy through vacuum
- how is energy transferred by a wave
- how is energy transferred by electromagnetic waves
- how is energy transferred through a wave
- how is energy transferred by mechanical waves
What do waves not transfer
How do waves transfer energy without transferring matter.
Transferring energy - EdexcelEnergy transfers
energyThe capacity for doing work. is transferred by one of the following four types of energy pathway:
- mechanical work – a force moving an object through a distance
- electrical work – charges moving due to a potential difference
- heating – due to temperature difference caused electrically or by chemical reaction
- radiation – energy transferred as a wave eg light, infrared, sound - the Sun emits light radiation and infrared radiation
Learn more on work done and energy transfer in this podcast
Doing ‘work’ is the scientific way of saying that energy has been transferred.
For example, a grazing cow, a firing catapult and a boiling kettle are all doing ‘work’, as energy is being transferred from one store to another.
A toy car rolls to a stop
Kinetic energy store decreases as energy is transferred into the thermal energy store of the surroundings by the work done by the force of friction.
An electric motor lifting a weight
The chemical energy store decreases as energy is transferred via the electrica
- how is energy transferred by transverse wave
- how is energy transferred by sound waves