A ramp is an example of a simple machine called a(n)

In order to do work on an object, the force you exert must be

Work is measured in

Pulling down on a rope to hoist a sail on a sailboat is an example of a machine

The mechanical advantage of a machine is the number of times a machine increases

An ideal machine would have an efficiency of

The fixed point that a lever pivots around is called the

Which of these is an example of a third-class lever?

The power of a light bulb the converts electrical energy at a rate of 100 joules per second is

What do machines do?

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