Force (English)
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Definition (keystage 3)
An influence that causes an object to accelerate. The size of the acceleration is proportional to the size of the force, and inversely proportional to the mass of the object; this is Newton's second law of motion.
Force is a vector quantity; its size is measured in Newtons. One Newton will make a body of mass 1kg accelerate from rest to 1 metre per second, in a time of one second.
Force has dimensions MLT−2. The Newton is the SI unit of force.
Force is a vector quantity; its size is measured in Newtons. One Newton will make a body of mass 1kg accelerate from rest to 1 metre per second, in a time of one second.
Force has dimensions MLT−2. The Newton is the SI unit of force.
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