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It is called a machine.
Friction makes a machine less efficient by wasting energy.
M.a. of a pulley is how much the machine makes work easier
friction, heat, ... any form of energy (work) it produces, that doesn't serve the main purpose of the machine.
a pulley is a simple machine made of a wheel on an axle. It makes lifting easier
A machine, or tool
It is called a machine.
machine
An axel is a simple machine that relies on change in direction to make work easier. Furthermore, a simple machine is a device that makes work easier by increasing force or changing the direction of a force without electricity or other power sources.
a simple machine
Citrus juicer
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By increasing productivity and reducing the force, a machine makes work easier. They also last longer than people and do not require pay.
because it makes work easier
Nope..but sure makes it easier!!
Friction makes a machine less efficient by wasting energy.
Yes a wheel and axle is a simple machine because it makes work easier