FlashFlowPhysics - Energy Stores & Transfers (Y9)
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What is kinetic energy?
The energy stored in a moving object.
What is gravitational potential energy?
Energy stored by an object because of its height.
What is elastic potential energy?
Energy stored when an object is stretched or compressed.
List three examples of chemical energy stores.
Fuels, food, and batteries.
What is thermal energy?
Energy related to the temperature of an object.
Where is nuclear energy stored?
Inside the nucleus of an atom.
What are the four ways energy can be transferred?
Mechanically, electrically, heating, and radiation.
How is energy transferred by radiation?
Energy transferred by waves, such as light or infrared.
State the Law of Conservation of Energy.
Energy cannot be created or destroyed; it can only be transf…
What is the formula for efficiency?
Efficiency equals (useful energy transferred / total energy …
What happens to 'wasted' energy?
It is usually transferred to the thermal store of the surrou…
What causes energy to be wasted in many machines?
Friction.
Energy store change when a ball is dropped?
Gravitational potential energy transfers to kinetic energy.
What energy stores are involved when a ball hits the ground?
Kinetic energy transfers to thermal, sound, and elastic ener…
What is electrostatic energy?
Energy stored between electrically charged objects.