words associated with physics gcse
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acceleration |
Acceleration is the change in velocity.
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alpha |
The alpha particle is a particle of radiation, composed of two protons and two neutrons, emitted by unstable nuclei.
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particle |
A particle is a tiny fragment such as a speck of dust.
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alternating |
Alternating current.
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amplitude |
Amplitude is the height of a wave crest or a wave trough of a transverse wave from the rest position.
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incidence |
The angle of incidence.
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reflection |
The angle of reflection is the angle between the reflected ray and the normal.
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radiation |
Infrared radiation can transfer heat from the sun to Earth through the vacuum of space.
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beta |
Beta particles are high-energy electrons created in and emitted from unstable nuclei.
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theory |
The big ban theory.
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dwarf |
A black dwarf is a cold star.
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centripetal |
Centripetal force is the resultant force towards the centre of a circle acting on an object moving in a circular path.
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muscle |
The ciliary muscle controls the eye.
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circuit |
A circuit breaker cuts off the energy supply.
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conduction |
Heat energy travels through a solid from a hot region to a cold region by conduction.
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conductor |
A conductor is a mterial that transfers energy.
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conservation |
Conservation of momentum is a closed system.
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convection |
Liquids and gases transfer heat by convection.
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converging |
Converging lenses refract light.
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diode |
A diode is an electrical device that allows current flow in one direction only.
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