Force and Pressure

Key Words

Pressure - the force per unit area.

Density - measure of the 'compactness' of a substance, how close together the particles.

Upthrust - a resultant force upwards caused by when a force exerted on the bottom of an object is larger than the force acting on the top of the object.

Floating object - the upthrust is equal to the object's weight.

Sinking object - the weight is larger than the upthrust.

Atmospheric pressure - created on a surface by air molecules colliding with the surface.

Altitude - height above Earth.

Also see Forces, Motion, Force and motion

EQUATION Pressure

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Pressure Worksheet

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Links for Learning

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BBC Bitesize: Pressure.
S Cool: Forces & Pressure.

BBC Bitesize: Pressure test.

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