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Chapter 5 Vocab
Term | Definition |
---|---|
Compound Machine | Machine that is a combination of two or more simple machines |
Inclined Plane | Simple machine that consists of a sloping surface, such as a ramp, that reduces the amount of force needed to lift something by increasing the distance over whch the force is applied |
Input Force | The force applied to the machine |
Lever | Simple machine consisting of a bar free to pivot about a fixed point called the fulcrum |
Machine | Device that makes doing work easier by increasing the force applied to an object, changing the direction of an applied force, or increasing the distance over which a force can be applied |
Output Force | The force applied by a machine |
Pulley | Simple machine that consists of a grooved wheel with a rope, chain, or cable running along the groove; can be either fixed or movable |
Screw | Simple machine that consists of an inclined plane wrapped in a spiral around a cylindrical post |
Simple Machine | Machine that does work with only one movement-lever, pulley, wheel and axle, inclined plane, screw, and wedge |
Wedge | Simple machine that is an inclined plane with one or two sloping sides |
Wheel and Axle | Simple machine that consists of a shaft or axle attached to the center of a larger wheel, so that the shaft and the wheel rotate together |
Work | Transfer of energy that occurs when a force makes an object move; measured in joules |