What is normal contact force?
In GCSE physics, the normal contact force is the support force exerted by a surface on an object that is resting on it. The normal contact force is sometimes called the normal force, the reaction force, or the normal reaction force, but they all mean the same thing. The word ‘normal’ is used in physics to describe something which is perpendicular to a surface. Therefore, the normal force always acts at a right angle to the surface.
The push force exerted on an object by a surface is called the reaction force
Normal contact force revision resources to ace your exams
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