Lives, forces and motion make things move and stay still. ... Pushing and pulling are examples of forces that can sped things up or slow things down. There are two types of forces, at a distance force and contact forces. Friction and mass is very important as well.
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Lives, forces and motion make things move and stay still. ... Pushing and pulling are examples of forces that can sped things up or slow things down. There are two types of forces, at a distance force and contact forces. Friction and mass is very important as well.
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