Question

can mechanical energy be converted into electrical energy?

Answer 1

A generator is used to convert mechanical energy to electrical energy. A motor converts electrical energy to mechanical energy.

Rather than try to explain the theory of how a generator can convert mechanical energy to electrical energy, click on the source link I posted below. It has a nice graphic with animation that will help you understand the theory better.
Source:
http://www.wvic.com/how-gen-works.htm

Answer 2

didnt work

Answer 3

Here is how it works (in lay terms).

Say you have a coil of copper wire attached to a wooden board and you have a powerful magnet 10 meters away. The electrons in the coil will move with a certain speed.

Now, you move that magnet from 10 meters to 5 meters.
The electrons in the coil will now travel much faster due to the magnetic field being applied.

There are other ways to induce energy with a magnet other than just moving it from far to near.
Imagine the same coil attached to the board, only this time rather than changing distance the magnet is rotated from left to right effectively sweeping the coil with its magnetic field.

This sweeping motion would cause the negetively charged electrons to follow the positively charged pole of the magnet, effectively changing their speed.

There is a third method of induction dealing with changing area. If the coil is being bombarded with a constant magnetic field and it has a diameter of 5m its electrons will be moving at a certain speed. If the coil is then stretched to a diameter of 10m the electrons will move much more quickly.
I don't understand this one so I won't even pretend to.

To answer your question fully, I think you'll need to look at the second method of induction. The rotating magnet.
As a person peddles the bike the wheel spins. Place a magnet on the wheel and place a coil next to it. As the person peddles the device will move the electrons through the coil... sort of like a river of charge.
This river has a force... it is known as the electromotive force.

Thus, human chemical energy is converted into an electromotive force. All forces have the potential of doing work.

Answer 4

how was that

Answer 5

haha ok and that was good thanks (: