force, push or pull , what does a force do?, change speed, change shape and change direction, stop and start, contact force, needs object to be touched, non-contact force, does not need two object to be touched, unit of force, newtons, force meter, instrument used to measure force, friction, a force that acts when two objects meet, water resistance, A force from water that slows moving objects down., upthrust, A force from water that pushes objects upwards., normal force, The force that holds an object up when it rests on something., applied force, the force caused by push or pull made by a person or another object..

Forces

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