Unit Two: PHYSICS

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# Unit Two: PHYSICS - PowerPoint PPT Presentation

Unit Two: PHYSICS. Physics (Forces and Motion) Vocabulary. Force : any push or pull on an object. 2 Types of Forces!. Unbalanced Forces. Balanced Forces. Unbalanced Force. =. Forces acting on an object are NOT EQUAL !. =. =. There IS a change in MOVEMENT!.

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Physics (Forces and Motion)Vocabulary
• Force: any push or pull on an object.
2 Types of Forces!
• Unbalanced Forces
• Balanced Forces
Unbalanced Force

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• Forces acting on an object are NOT EQUAL!

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• There IS a change in MOVEMENT!

Balanced Force

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• Forces acting on an object ARE EQUAL.

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• There is no change in movement.
• NET FORCE = 0
Newton’s Laws of Motion
• 1. Inertia of Rest & Inertia of Motion
• 2. Acceleration
• 3. Action-Reaction
Law 1: INERTIA OF REST
• An object at rest will stay at rest until acted upon by an UNBALANCED FORCE.
• Possible unbalanced forces: Tiger Woods, the wind
Law 1: INERTIA OF MOTION
• An object in motion will stay at the same speed, moving in the same direction unless an unbalanced force acts upon it.
• Possible unbalanced forces: water, gravity