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Compound machines
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what do combustion engines need?
a spark and fuel
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A _____ _______ is made of two or more simple machines
Compound machine
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The _____ reduce friction and enable the cars _____ to move along the ground
Tyres, wheels
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_____ connect two wheels. When one wheel turns the axle allows the other wheel to turn.
Axle
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Mechanisms combine the force of ____ simple machines.
Two or more
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The two components of a wheelbarrow are _____ and ______
A wheel and lever
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A cars engine converts _____ _____ into mechanical energy
Electrical or chemical energy
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When components work together they form a ______
Mechanism
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_____ are wheels, usually if different sizes, that work in pairs
Gears
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To combine the force of two simple machines, the movement of the machines needs to be _____
Transmitted
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____ and ______ transmit a force from one wheel to another.
Belt and chain
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______ slow down and stop the cars movement
Brakes
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______ clean the windscreen of rain and snow
Wipers
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Modern machines have _____ different components
Many
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Each _____ carries out a different function or role.
Component
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