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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 = • Forces acting on an object are NOT EQUAL! = = • There IS a change in MOVEMENT! http://media1.break.com/nt/uploads/fb/fb7619dce4c37ea730d5d62051d88cab.wmv
Balanced Force = • Forces acting on an object ARE EQUAL. = = • There is no change in movement. • NET FORCE = 0
Unbalanced or Balanced?? 1. 3. 4. 2.
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
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