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WEIGHT

Force that acts on a body because of gravity.

Weight (N) = Mass (kg) x Gravity (10m/s)

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FRICTION

The force that opposes motion, either when you try to make something move or whilst moving

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AIR RESISTANCE

Friction between an object and the air that it is moving through

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VISCOUS DRAG

Occurs when an object is moving through a liquid

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UPTHRUST

Upward force that liquids and gases exert on objects

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MAGNETIC

Forces that magnets exert on other magnets or other ferrous materials

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ELECTROSTATIC

Force between electrically charged objects

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TENSION

String, cables, ropes etc. that are being stretched. 

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MOMENTUM

Is a measure of how easily an object may be brought to rest

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MOMENT

The moment of a force is 'its turning effect.'

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HOOKE'S LAW

The extension of a spring is directly proportional to the force pulling it. If stretched beyond the elastic limit the spring will not return to its original shape. 

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ELASTIC

Property of a body or substance by which it tends to resume its original size and shape after being subject to deforming stresses. 

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GRAVITATIONAL FIELD STRENGTH

is the force that attracts objects with mass to each other

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GALAXIES

Huge clusters of billions of stars 

Our galaxy is the milky way

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CURRENT

The rate of flow of electric charge

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VOLTAGE

A measure of energy transferred to (or from) the charge moving between two points

The voltage of an energy source tells us how much energy is transferred per coulomb of charge that is passed through the battery

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RESISTANCE

The ration of potential difference across a conductor to the current flowing through it.

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ELECTRICAL POWER

The rate at which electrical energy is converted in an appliance

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OHMS LAW

Current is directly proportional to voltage

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