electric motor
A generator
kinds of electric currents
100

What is a motor?

A motor is a device that changes electrical energy into mechanical energy,or motion.

100

what is a generator?

A electric generator turns motion into electrical energy.

100

what is a alternating current?

a alternating current flows in one direction and then flows in opposite direction.

200

How does a simple electric motor work?

A simple electric motor has a power source a permanent magnet,a rotating loop of wire, and a motor shaft. 

200

how does simple generator work?

a simple generator has as many of the same parts as a motor. mechanical energy turns the wire loop between two magnet poles.

200

what is a direct current?

a direct current flows with out stopping or reversing direction.

300

How might a electric train use the spinning motion produced by motor?

the electromagnet feels more push and pull from the permanent magnet. the motor might use this stronger force to move something heavy or spin faster.

300

What do simple generators and simple electric motors have in common?

a generator and a motor have as many of the same parts.


300

what is the difference between alternating current and direct current?

alternating current flows in one direction and direct current flows without stopping or reversing direction.

400

what devices have you used today that use direct current? alternating current?

a computer and tv.