chapter 10 work and machines. __________ is when a force changes the motion of an object
TRANSCRIPT
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Chapter 10Work and Machines
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__________ is when a force changes the motion of an object.
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Work
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Two or more simple machines put together make a
___________.
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Compound Machine
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________ is the ability to do work.
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Energy
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A ___________ has few or no moving parts.
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Simple Machine
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A ball player using a ball to hit a bat is an example of _________.
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Work
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A rock on a hill has energy because it can ________ down
the hill.
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Roll
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Scissors are an example of a ___________.
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Compound Machine
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A machine makes work easier because it lets you change the
__________ of the force.
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Direction
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A ________ and a ________ are alike because they both help you
pull something up.
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Pulley and Lever
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It is easier to ride a bike up a winding road because it is a
________ distance, but _________ to pedal.
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Longer, Easier
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Fish part the water when they swim. The simple machine that
this is most like is the _________.
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Wedge
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A _________ is an example of a lever with the fulcrum at the end.
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Wheel barrow
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What simple machine is this?
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Lever
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What simple machine is this?
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Inclined Plane
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What simple machine is this?
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Pulley
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What simple machine is this?
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Wheel and Axle
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What simple machine is this?
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Wedge
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What simple machine is this?
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Screw