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KS3 Science - Forces keywords
Terms in this set (34)
The force on an object moving through the air that causes it to slow down (also known as drag)
Forces acting on an object that are the same size but act in opposite directions.
To squash into a smaller space.
To change shape
A force acting on an object that acts to slow the object down
The amount by which an object gets longer when a force is applied
A force that resists movement because of contact between surfaces
A non-contact force that acts between two masses
A substance that reduces friction between surfaces when they rub together
The force between two magnets, or a magnet and a magnetic material.
The amount of matter (particles) a thing is made up of.
The unit of force, symbol N
A piece of equipment used to measure force in newtons
A force that acts between objects that are not touching.
A force provided by a solid surface
An object can be stretched if you exert a force on it
A stretching force
When forces on an object are oppoiste and unequal
The force on an object in a liquid or gas that pushes up
A force that needs to touch an object before it can affect it (e.g. friction).
The scientific unit for mass. 1 kg = 1000 g.
The amount of force with which gravity pulls something towards the Earth.
Gravitational Field Strength
The strength of the force of gravity on an object. Can be different in different places.
A non-contact force that attracts objects made out of certain materials.
The force that causes something to move forward - e.g. from an engine.
The overall force on an object, thinking about direction
Not moving, still.
A force that acts to slow things down as they move through water.
Another name for friction, air resistance and water resistance.
Something that has a smooth shape to reduce drag.
Same speed, not getting faster or slower.
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