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Cards In This Set
| Front | Back |
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Force
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 A push or a pull. |
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Gravity
|
 The pulling force between two objects which depends on how big they are. |
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Motion
|
 A change in position. |
|
Speed
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The measure of how fast something moved over a certain distance.
|
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Work
|
The measure of force used over a certain distance.
|
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Weight
|
 The measure of the pull of the force of gravity on an object. |
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Simple machine
|
A tool that helps you work.
|
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Lever
|
 A simple machine that that can be used to raise or lower and object. |
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Fulcrum
|
 The point where a lever rocks. |
|
Inclined plane
|
 A simple machine used to move objects to a higher or lower place. A ramp. |
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Screw
|
 An inclined plane wrapped around a post. |
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Wedge
|
 A triangle shaped object used to separate, split, cut or lift objects. |
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Pulley
|
 A wheel and a rope. A pulley changes the direction of force. |
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Wheel and axle
|
 A circle attached to a bar called an axle. |
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Things with more mass require more __________ to move.
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Force
|
