Energy P1 Flashcards
Useful energy
The light transferred by a torch
Input energy
The chemical store of a battery.
Waste energy
The heat transferred by a torch.
Efficiency
The measure of how much energy was usefully transferred.
Chemical energy store
Name an example of it.
Energy transferred by a chemical reaction.
An example of this is a battery.
Kinetic energy store
Name an example of this.
Stored by any moving object.
An example of this is a jogger.
Thermal energy store
Name an example of this.
Energy related to the temperature.
An example of this is a cup of tea.
Elastic energy store
Name an example of this.
Stored by a springy object when it is squashed or stretched.
An example of this is a bow and arrow before it is fired.
Gravitational potential energy store
Name an example of this.
Energy due to an object’s height above the ground.
An example of this is a book on a shelf.
Renweable energy
A renewable resource is one that can be used repeatedly and does not run out because it is naturally replaced. A renewable resource, essentially, has an endless supply such as solar energy and wind energy.
Non-renewable
A non-renewable resource is a natural resource that cannot be replaced by natural means at a quick enough pace. Some example of non-renewable resources are crude oil and natural gas.
Is hydroelectric power a renewable resource?
Yes
Is coal a non-renewable resource?
Yes
Is biofuel a non-renewable energy source
No biofules is a renewable energy store.
Is geothermal a reneable source?
Yes
