Introduction to forces
- Created by: Maddieecb
- Created on: 02-02-14 15:35
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- Intro to forces
- PUSHING
- PULLING
- STRETCHING
- SQUEEZING
- Measured in Newtons
- When 2 objects interact, force 1 = action force. Force 2 = reaction force!
- When a rocket burns fuel releasing hot gas at high speed its reaction force makes the rocket move forward
- Always an action and reaction force!
- Resultant forces
- All forces on an object replaced by a single force with the same effect.
- If in same direction they add, but opposite direction and you subtract.
- All forces on an object replaced by a single force with the same effect.
- If stationary or constant speed resultant force = 0
- An ice skater does not slow or speed up much at all unless adding a force as there is a tiny amount of friction acting on their blades
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