Page 30 - Summary 6 2025

Delta Modern Language Schools
Science department
Grade 6
1st term 2024- 2025

Materials are divided into two types according to attraction to the magnet:

Magnetic materials Non-magnetic materials

• They are materials that are • They are materials that are not
attracted to the magnet. attracted to the magnet.

• Example: iron, nickel and • Example: aluminum, plastic
cobalt. and wood.

Generator:

❖ Structure:

-Large magnets

-Coiled wires
❖ Function:
It changes mechanical energy into electrical energy used in lighting houses

and operating electrical devices.
How does a generator work?

When large magnets spin at a high speed, the spinning magnets create electrical
charges on the coiled wires, so electricity is produced.

There are different forces that can be used to make the magnet spin:

Water in dams Winds Sources of fuel as
oil and coal
Used to operate water Used to operate wind
turbines causing the turbines causing the Used to make water boil
producing steam which
magnets in the magnets in the causes the magnet in
generator to spin. generator to spin. the generator to spin.

27