Breaking a Magnet in Two

Q.

If a bar magnet is cut lengthwise into two parts, how many numbers of poles will be formed? [1 MARK]

Q.

State true or false. Magnets align themselves according to the strongest magnet around them.

1. True

2. False

Q.

State True or False:
The magnetic north and south poles of the earth are different from its geographical north and south poles.

1. True

2. False

Q.

A bar of iron buried under the earth becomes a weak magnet after some days. Give reason.

Q.

Matt has a magnetic compass which is pointing in the north-south direction. He brings a large magnet close to it. In which direction would the magnetic needle align?

1. It would remain unchanged.

2. It would align itself according to the resulting magnetic field of the Earth and the larger magnet.

3. It would align in the south-north direction .

4. It would align in the east-west direction.

Q. A freely suspended magnet aligns in ________ direction.

1. East-West
2. North-South
3. North-East
4. South-West

Q.

If a bar magnet was cut initially into two pieces. Then each of the new pieces was cut into two more pieces, and the process was repeated one more time, find out the number of the north poles generated?

1. 2

2. 1

3. 7

4. 8

Q. Identify the geographical pole of the Earth which behaves as the "Magnetic North pole".

1. North pole
2. South pole
3. East pole
4. West pole

Q. A freely suspended magnet aligns itself in _________direction.

1. South-East
2. North-South
3. South-West
4. North-East

Q.

State True or False:
The magnetic north and south poles of the earth are different from its geographical north and south poles.

Q.

If a bar magnet is brought closer to another bar magnet's head. It was observed that they attract each other. What are the poles of part 1 and part 2?

1. south-north

2. north-south

3. north-north

4. south-south

Q. A freely suspended magnet aligns itself in _________direction.

1. South-East
2. North-South
3. South-West
4. North-East

Q.

If a bar magnet is brought closer to another bar magnet's head. It was observed that they repel each other. What are the poles of part 1 and part 2?

1. 1 - North, 2- South

2. 1- South, 2 - North

3. 1 - North, 2- North

4. 1 - South, 2- South

Q. A freely suspended magnet will align itself:

1. Along Earth's equator
2. In any direction
3. None of these
4. Along the line joining the North pole and South pole
5. Perpendicular to the line joining North pole and South pole

Q.

If a magnet is divided into two parts, ______ independent magnet(s) is/are formed.

1. one

2. two

3. four

4. three

Q.

When the South pole of a bar magnet is brought near the North pole of a ring magnet, they will _____ each other.

1. repel

2. refract

3. attract

4. reflect

Q. State whether true or false:

1. True
2. False

Q.

What will happen when the poles of the magnets are in the following arrangements? [3 MARKS]

N - N, N - S, S - S

Q.

Matt has a magnetic compass which is pointing in the north-south direction. He brings a large magnet close to it. In which direction would the magnetic needle align?

1. It would remain unchanged.

2. It would align itself according to the resulting magnetic field of the Earth and the larger magnet.

3. It would align in the south-north direction .

4. It would align in the east-west direction.

Q.

________ is the most reliable test for magnetism.

1. Attraction

2. Rotation

3. Heating

4. Repulsion

Q. In which direction, a freely suspended magnet aligns itself?

1. North-South
2. East-West
3. Vertically Up-Down
4. South East-North West
5. North East-South West

Q.

1. North seeking
2. South Pole
3. North Pole
4. South seeking

Q. A freely suspended magnet aligns in ________ direction.

1. East-West
2. North-South
3. North-East
4. South-West