Balanced & unbalanced forces
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1. Newton's First Law of Motion states that an object at rest stays at rest or an object in motion stays in motion with constant speed and direction unless acted upon by an unbalanced net force. 2. Forces can be represented by arrows, with the length of the arrow indicating the size of the force and the direction of the arrow indicating the direction of the force. Balanced forces cancel each other out, while unbalanced forces cause changes in an object's speed or direction of motion. 3. Friction is a force that opposes motion when objects are in contact, changing an object's motion from balanced to unbalanced. Without friction or gravity, objects would continue moving without any changes in speed or motion
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Balanced & unbalanced forces
- 1. Force and Motion Why do objects move?
- 2. 1. Newton’s First Law of Motion force constant speed direction at rest unbalanced net force A is a push or a pull. Every object keeps moving with a and , OR unless acted on by an , or a .
- 4. Arrows can be used to represent forces. The of the arrow shows the SIZE of the force. The of the arrow shows the DIRECTION of the force. size direction
- 5. FORCES BALANCED UNBALANCED When forces cancel each other out, the forces are UNBALANCED force How fast the object speeds up also WHAT??? increases increases opposite balanced
- 6. Balanced vs. Unbalanced Forces!
- 7. 2. Why do things stop??? opposes contact UNBALANCED motion Friction – the force that the motion, between objects in . Friction is the force that changes an object’s .
- 8. What does look like???FRICTION
- 9. Without (OR !) all things would continue to without a change in ! friction gravity move motion **No change in speed or direction**
- 10. A created by a push or pull BALANCED FORCES UNBALANCED FORCES Opposite in in size change in Can be opposite or same in size causes change in direction equal no motion Force direction NOT equal ALWAYS motion