Newton’s Second Law Force equals mass times acceleration. F = ma.

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Presentation transcript:

Newton’s Second Law Force equals mass times acceleration. F = ma

Newton’s Second Law The greater the mass of an object, the more force it will take to accelerate the object. Force = Mass x Acceleration Force is measured in Newtons On Earth, weight is a measurement of the force of gravity.

Newton’s Second Law One rock weighs 5 Newtons. The other rock weighs 0.5 Newtons. How much more force will be required to accelerate the first rock at the same rate as the second rock? Ten times as much

Remember

Circular Motion Centripetal Force: Any force that keeps an object moving in a circle Without the force, the object would go flying off in a straight line Video Video 2