Physics

Force that acts on a body because of gravity.

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

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

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

Occurs when an object is moving through a liquid

Upward force that liquids and gases exert on objects

Forces that magnets exert on other magnets or other ferrous materials

Force between electrically charged objects

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

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

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

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. 

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

is the force that attracts objects with mass to each other

Huge clusters of billions of stars 

Our galaxy is the milky way

The rate of flow of electric charge

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

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

The rate at which electrical energy is converted in an appliance

Current is directly proportional to voltage