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There are ___ types of simple machines.
work output
mechanical advantage
six
axle
is equal to
multiply energy
4 m
5
In a wheel and axle, the resistance force is usually exerted by the ___.
work output
mechanical advantage
six
axle
is equal to
multiply energy
4 m
5
To raise a resistance 4 m, the effort rope of a single fixed pulley must move ___.
work output
mechanical advantage
six
axle
is equal to
multiply energy
4 m
5
In an ideal machine, the work input ___ work output
work output
mechanical advantage
six
axle
is equal to
multiply energy
4 m
5
Which of these cannot be done by a machine?
work output
mechanical advantage
six
axle
is equal to
multiply energy
4 m
5
The ___ of a machine is the number of times it multiplies the effort force.
work output
mechanical advantage
six
axle
is equal to
multiply energy
4 m
5
The ideal mechanical advantage of a pulley system in which five ropes support an object is ___
work output
mechanical advantage
six
axle
is equal to
multiply energy
4 m
5
As the efficiency of a machine increases, the ___ of the machine increases.
work output
mechanical advantage
six
axle
is equal to
multiply energy
4 m
5
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