Types of Magnets

Q.

Explain how magnets are stored. Why is it necessary to store magnets properly?

Q. The number of North Poles on the horseshoe magnet is equal to ____.

1. 0
2. 4
3. 2
4. 1

Q.

What do you mean by an artificial magnet? Give examples. [3 MARKS]

Q.

The arrangement to store two bar magnets is shown by figures. Which one of them is the correct arrangement?

1. 
   
2. 
3. 
4. 

Q.

Magnets are always in form of a rectangular bar.

1. False

2. True

Q. How are permanent magnets made?

Q.

. A magnet will not attract

1. an iron blade

2. a wire of nickel

3. a key of steel

4. an aluminium spoon

Q. Which of the following would be true for an arrangement to store a U-shaped or horseshoe magnet?

1. Placing a piece of wood between the arms of U-shaped magnet.
2. Keeping the magnet dipped in cooking oil.
3. Placing an iron piece across the poles of the U-shaped magnet.
4. Placing another magnet with the opposite poles between the arms of U-shaped magnet.

Q. Identify the type of magnet shown in the image below.

1. Bar magnet
2. Horseshoe magnet
3. Ring magnet
4. Cylindrical magnet

Q. Identify the type of magnet shown in the image.

1. bar magnet
2. Horseshoe magnet
3. Ring magnet
4. Cylindrical magnet

Q. A horseshoe magnet haspoles.

1. $1$
2. $2$
3. $3$
4. $4$

Q.

A single keeper can protect a horseshoe magnet but not a bar magnet.

1. True
2. False

Q. Which of the following does not contain a magnet?

1. Radio
2. Television
3. Mobile phone
4. Electric bulb

Q.

Mention two commercial applications based on the attractive property of a magnet.

Q. How are permanent magnets made?

Q. is a type of natural magnet.

1. Bar magnet
2. Lodestone
3. Horseshoe magnet
4. Soft iron

Q.

Statements given below are incorrect. Write the correct statements.

The name of substance which constitutes natural magnet is magnesite

Q.

What are the precautions to be taken during a lightning strike?

Q.

How is a natural magnet different from an artificial magnet?

Q. An U- shaped magnet has _________ poles.

1. four
2. three
3. one
4. two

Q. is a type of natural magnet.

1. Horseshoe magnet
2. Soft iron
3. Bar magnet
4. Lodestone

Q. If a bar magnet is cut lengthwise into two parts, how many numbers of poles will be formed?

Q. Pick the natural magnet from the given options.

1. Iron
2. Magnetite
3. Nickel
4. Cobalt

Q. nta magnet suspended at 30 degree with magnetic meredia makes an angle of 45 degree with the horizontal.what shall be the actual value of angle of dip?n

Q. Identify the type of magnet shown in the image.

1. bar magnet
2. Horseshoe magnet
3. Ring magnet
4. Cylindrical magnet

Q. What is a horseshoe magnet?

Q. Why are magnetic keepers used to store magnets?

Q.

What do you mean by an artificial magnet? Give examples. [3 MARKS]

Q. Pick the natural magnet from the given options.

1. Iron
2. Magnetite
3. Nickel
4. Cobalt

Q. A horseshoe magnet haspoles.

1. $1$
2. $2$
3. $3$
4. $4$