What forces do
Lesson 9 / 10
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I can describe what forces are and what forces do.
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The motion of faster objects is harder to stop.
The motion of heavier objects is harder to stop.
Objects with a greater mass need a greater force to start or stop it moving, and to change the direction of motion.
A force is a push or a pull.
A force is needed to change the motion or shape of an object.
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