FORCES+AND+MOTION

FORCES AND MOTION

**FORCES**

When you ride a bike, your foot pushes against the pedal. The push makes the wheels of the bike move. When you drop something, it is pulled to the ground by gravity.

A PUSH or a PULL is a FORCE. So, a good definition for FORCE is "A PUSH OR A PULL IN A PARTICULAR DIRECTION." Forces affect how objects move. They may cause motion; they may also slow, stop or change the direction of motion of an object that is already moving.

Forces can affect motion in several ways: - They can make objects start moving- They can make objects move faster - They can make objects move slower - They can make objects stop moving - They can make objects change direction - They can make objects change shape Forces cause changes in the speed or direction of an object; so we can say that forces cause changes in velocity. Forces cause acceleration. FORCE FACTS Forces are measured in Newtons (N) Forces usually act in pairs Forces act in a particular direction Forces usually cannot be seen, but their effects can







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