Levers/Pulleys Test
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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| effort | A force needed to move a load or overcome resistance.
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| N | The symbol for newton.
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| away from | To make the effort easier, move the effort _________ ______ the fulcrum.
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| close to | To make the effort easier, move the load _______ _____ the fulcrum.
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| class 1 | Levers that have the fulcrum in between the effort and the load.
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| class 3 | Levers that have the effort in between the fulcrum and the load.
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| class 2 | Levers that have the load in between the fulcrum and the effort.
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| 3 | The number of ways that a lever can be set up.
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| newton | The unit used to measure effort.
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| spring scale | An instrument used to measure force.
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| advantage | A benefit obtained by using any simple machine.
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| directional advantage | A change in direction that results from passing a rope through a pulley.
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| mechanical advantage | The reduction in effort needed to lift a load or overcome resistance.
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| single fixed pulley | ________ ____________ __________ change the direction of the effort.
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| single movable pulley | _________ ____________ ___________ reduce the effort needed to lift the load.
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| 6 | The number of simple machines.
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| less | The greater number of ropes supporting a load, the __________ effort needed to lift the load.
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| number of ropes supporting the load | The effort needed to lift a load can be predicted from the weight of the load and the ....................
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| balanced by the cost | The benefits gained by using a simple machine are always ..........
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| a useful tool | When the benefits outweigh the costs, the machine is .............
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| lever | A wheel and axle is a rotating version of what?
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| axle | What is the rod around which wheels rotate?
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| screw | An inclined plane spiraled around an axis.
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| an inclined plane makes work require less effort | Name the true statement:
-An inclined plane reduces the amount of work.
-An inclined plane increases the amount of work.
-An inclined plane makes work require less effort.
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| wedge | A double inclined plane that tapers to a point or sharp edges.
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Or sort by any of the columns using the down arrow next to any column heading.
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Created by:
AnneD
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