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_____________ increase applied force and/or change direction of force to make work easier.
work
friction
mechanical advantage
move
watts
simple machines
machines
efficiency
____________ is a measure of how much of the work put into a machine is changed into useful output work by the machine.
work
friction
mechanical advantage
move
watts
simple machines
machines
efficiency
For work to occur, an object must
work
friction
mechanical advantage
move
watts
simple machines
machines
efficiency
In machines, some energy is changed to heat due to
work
friction
mechanical advantage
move
watts
simple machines
machines
efficiency
Power is measured in ____________.
work
friction
mechanical advantage
move
watts
simple machines
machines
efficiency
______________ is force X distance.
work
friction
mechanical advantage
move
watts
simple machines
machines
efficiency
_________ is the number of times a machine multiplies the effort force.
work
friction
mechanical advantage
move
watts
simple machines
machines
efficiency
Levers, pulley, screws, and inclined planes are all
work
friction
mechanical advantage
move
watts
simple machines
machines
efficiency
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