Question

H. Short answer type questions
1. State the important properties of a magnet. Why is the study of magnetism so important?
2. What are the differences between iron and aluminium?
3. One precaution you should always take while handling a magnet is not to drop it. Why?




4. How can a magnet lose its properties! Write any three ways of losing it.​

Answer 1

Answer:

the important properties of magnet are attract and repel property and directive property

Explanation:

and we should take precaution not to drop it otherwise a magnet can loose it magnetic properties and the three ways by which a magnet can loose it magnetic properties are hammering dropping a magnet from a great distance and not storing the magnets properly and heating of a magnet

Answer 2

Explanation:

(1)Attractive Property – Magnet attracts ferromagnetic materials like iron, cobalt, and nickel.

Repulsive Properties – Like magnetic poles repel each other and unlike magnetic poles attract each other.

Directive Property – A freely suspended magnet always points in a north-south direction.

•Magnetism is very important because we use it to create electrical energy. In fact, most of the energy that we use today comes from rotating magnets

(2)Iron is the element Fe on the periodic table and aluminum is the element Al on the same table. Being two different elements, they are quite drastically different in properties.

Generally aluminum is less dense, has a lower melting point, more conductive, and when aluminum oxide forms on the surface of pieces, it doesn’t flake off.

Comparatively, iron is more dense, easier to make alloys such as steels, a better insulator, has a higher melting point, oxidizes very quickly and flakes off as rust.

That is only scratching the surface of their differences. There is a reason why airplanes and soda cans are made of aluminum and I-beams

and many hand tools are made of iron.

(3)Because when magnets are dropped down to the floor, the impact of the drop weakens their magnetism.

(4)There are three ways. heat. demagnetised fields. via shock therapy

Thank you