Simple Machines- Gilbert
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Force is measured (labled) in ____________ | Newtons
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| Work is measured (lableed) in ___________ | Joules
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| Power is measured in ____________ | Watts
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| Mechanical advantage | NO Unit
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| Formula for finding force | Mass X gravity
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| Formula for finding work | Force X distance
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| Forumula for finding Power | Work divided by time
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| Formula for finding mechanical advantage | output force divided by input force
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| Work | When a froce causes an object to move inthe direction of the force
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| Power | How fast energy is used
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| machines | makes life easier by spreading the force over a longer distance. Machines do not change how much work is done.
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| Name the 6 simple machines (SAWLIP) | Screw, Axle and wheel, Wedge, lever, Inclined Plane (ramp), Pulley
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| screw | an inclined plane that is wrtapped in a spiral
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| work you do on a machine is called ______ | work input
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| inclined plane | a simple machine that is a straight, lanted surface
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| Mechanical advantage | compares the input force with the output force
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| All machines are constructed from 6 ___________________ | simple machines
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| block and tackle | when 2 kinds of pulleys are used together
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| lever | A simple machine with a bar that pivots at a fixed point
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| simple machine | A device that helps make work easier by chnaging the size or direction of force
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| wedge | A double inclined plane that moves
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| Work output | The work done by a machine
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| wheel and axle | A simple machine that consists of 2 circular objects of different sizes
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| pulley | A simple machine that has agrooved wheel that holds a rope or a cable
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| compound | Machines that are made of two or more simple machines
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| fulcrum | The fixed point at whcih a lever pivots
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| Name 2 kinds of pulleys | FixedMoveable
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| mechanical efficiency | the comparison of a machines work output with the work input
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Created by:
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