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5th Motion FK2
Simple Machines
| Question | Answer |
|---|---|
| Simple Machine | a machine with few or no moving parts. There are six: lever, screw, wheel and axle, pulley, inclined plane, and wedge. Simple machines will either change the size of the effort force or the direction of the effort force. |
| Lever | a simple machine made up of a bar that turns around a fixed point |
| Fulcrum | the fixed point, or point that doesn’t move on a lever; the point where a lever rocks back and forth and rest upon: center of the seesaw; the rim of a can being openned; using a crowbar to remove a nail, then the wood where the bar rest is the fulcrum. |
| Effort Force | the force put on one part of the bar when you push or pull on a lever |
| Work | that which is done on an object when the force moves an object through a distance |
| Pulley | a simple machine made up of a rope or chain and a wheel around which the rope fits |
| Wheel and Axle | a simple machine made up of a large wheel attached to a smaller wheel or rod; It will increase the effort force. |
| Inclined Plane | a flat surface with one end higher than the other |
| Screw | an inclined plane wrapped around a pole |
| Wedge | a machine made up of two inclined planes pieced back to back |
| Force | any push or pull |
| Gravity | the attraction or pulling force between objects and the Earth. |
| Friction | the force that slows down or stops objects in motion |
Created by:
ekahl5
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