Magnet and Magnetite
Trending Questions
Write 3 the difference between magnetic and non magnetic materials.
Magnetite is a natural magnet.
Artificial magnet
Natural magnet
Can magnets attract Aluminum?
Plastic is not a magnetic material.
True
False
Is stainless steel a magnetic or non-magnetic material?
Magnetite is a/an ______.
Natural magnet
Artificial magnet
Not a magnet
Electromagnet
Define magnetic substances.
- Ferromagnetic
- Diamagnetic
- demagnetizing
- Curie
Keys, Glass, Wood, Nail, Book, Rubber, Fork, Sand, Iron particles, Chalk, Alpin
Question 2 (ii)
State whether the following statement is true or false.
Artificial magnets were discovered in Greece.
Name two magnetic substances.
What is the difference between magnetic and non-magnetic materials? Give examples. |
What are various types of magnetic substances? Give two examples.
Define non-magnetic substances.
Cobalt is a non-magnetic substance.
- True
- False
In a permanent magnet at room temperature:
Magnetic moment of each molecule is zero.
The individual molecules have non-zero magnetic moments which are all perfectly aligned.
Domains are partially aligned.
Domains are all perfectly aligned.
- horse-shoe
- bar
- temporary
Statements given below are incorrect. Write the correct statements.
A horse shoe magnet causes less magnetic attraction than a bar magnet.
- It always attracts copper and steel. While its like poles repel each other.
- Its like poles attract each other, unlike poles repel each other.
- Its like poles repel each other, unlike poles attract each other.
- Strength of these magnets can be changed.
__________ is a region where a magnet exhibits its magnetic influence.
Radiation
Heat
Painting
Other magnets in close proximity to the magnet
An unmagnetized steel bar buried in the earth in the north-south direction would, after a few days, exhibit magnetic properties, making it a weak magnet.
Explain by giving reasons how this is possible.
In what way will the effect be different if the steel bar is to be placed above the surface of the earth?
What is a non-magnetic substance? Give two examples.
![](https://df0b18phdhzpx.cloudfront.net/ckeditor_assets/pictures/1498903/original_pasted_image_0_%286%29.png)
- Iron nails are magnetic material.
- Glass tumblers are magnetic material.
- Iron nails are non-magnetic material.
- Iron nails are magnets.
- horse-shoe
- bar
- temporary
- Cylindrical magnet
- Horseshoe magnet
- Lodestone
- Bar magnet
Question 1 (i)
Fill in the blank in the following.
Artificial magnets are made in different shapes such as
What is the difference between magnetic and non-magnetic materials? Give examples. [3 MARKS]
- Gold
- Wood
- Iron
- Silver
Iron key, Glass, Wood, Nail, Book, Rubber, Fork, Sand, Iron particles, Chalk, Alpin