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Connecting Motion with Force

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Presentation on theme: "Connecting Motion with Force"— Presentation transcript:

1 Connecting Motion with Force

2 Force- a push or pull one body exerts on another.
-Force does not always change velocity. Balanced forces- forces on an object that are equal in size and opposite in direction. Ex: Tug of War.

3 Unbalanced (Net) Force- forces on an object are not equal in size or direction.
- This causes a change in the velocity of the object.

4 Inertia- the tendency of an object to resist any changes in its motion.
- velocity remains the same unless a force changes it. - The more mass an object has, the greater its inertia. Ex: bowling ball vs. tennis ball

5 Isaac Newton’s 1st law of motion- A moving object will stay moving until a force stops it. An object at rest will stay at rest until a force moves it. - Also called the Law of Inertia.

6 Friction- force that opposes motion between 2 surfaces that are touching each other.
Ex: Friction is the force between you and the ground so you can walk.

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