What's the connection of Simple Machines to Energy Transfer?

Question

What's the connection of Simple Machines to Energy Transfer?

Answer 1

they turn electrical energy or manpower into mechanical energy, but i guess it depends on the machine.

make it a good day

Answer 2

Example:

Simple lever arm:

-------------------------------**** 20 pound rock on this end

``````5ft`````````^````2ft```

How much force is needed to lift the rock?

work=energy=Fx5=20x2

F= 40/5= 8 pounds

connection?

energy in = energy out

energy = force X distance in this case

In other words, energy is conserved for simple machines

Please note, this is only true for ideal simple machines.

In a real machines: energy out < energy in due to

friction,etc.

hope this helps.