Attraction and Repulsion

Q. Why is it said that repulsion is a sure test for magnetism? [1 MARK]

Q. If the north pole of a magnet is kept closer to the south pole of another magnet, then, they will repel each other.

1. True
2. False

Q. Magnet has the property of ___________.

1. only attraction
2. either attraction or repulsion
3. only repulsion
4. both attraction and repulsion

Q. Two magnets are brought close together and the magnet on your right side is fixed. Select the direction of movement of the magnet on your left side.

1. 
2. 
3. 
4. 

Q. Observe the pictures A and B given in the given figure carefully. The cars have magnets mounted over them with the poles of the magnets marked.

Which of the following statements are correct for the given pictures?

1. In A, the cars 1 and 2 will come closer.
2. In B, the cars 3 and 4 will come closer.
3. In A, the cars 1 and 2 will move away.
4. In B, the cars 3 and 4 will move away.

Q.

________ is the most reliable test for magnetism.

1. Rotation

2. Repulsion

3. Attraction

4. Heating

Q. On a table, a weak magnet Y is placed near a strong magnet X, which is firmly fixed on the table, as shown in the figure below.


How will the magnet Y move?

1. Cannot be determined.
2. Y will turn in the clockwise direction.
3. Y will not turn at all.
4. Y will turn in the anticlockwise direction.

Q. The top view of a ball made up of a magnetic material sliding on a smooth table is shown in the image. What will be the direction of the ball after it comes closer to the bar magnet?

1. It will go towards the magnet.
2. It will go away from the magnet.
3. It will follow the straight path.
4. It will repelled back to its original path.

Q. A magnet is falling towards the ground as shown in the figure below.

Which among the following should be kept on the ground right below the magnet to reduce its speed?

1. A strong magnet with north pole upwards.
2. A strong magnet with south pole upwards.
3. An iron sheet.
4. A plastic sheet.

Q. A magnet is brought near three pins X, Y and Z made up of three different materials.

Which option is the most suitable regarding the material used to make pins X, Y and Z?

1. Pin X - Steel
   Pin Y - Iron
   Pin Z - Plastic
2. Pin X - Plastic
   Pin Y - Nickel
   Pin Z - Wood
3. Pin X - Iron
   Pin Y - Steel
   Pin Z - Nickel
4. Pin X - Silver
   Pin Y - Iron
   Pin Z - Steel

Q. If the north pole of a magnet is kept closer to the south pole of another magnet, then, they will repel each other.

1. True
2. False

Q. Ganeshan set up an experiment using two bar magnets one of which is marked N (North pole) and S (South pole) as shown in the figure. He noticed that the upper magnet is lifted up in air.

Identify X and Y poles of the upper magnet.

1. X is the north pole, Y is the south pole.
2. X is the south pole, Y is the north pole.
3. Both X and Y are north poles.
4. Both X and Y are south poles.

Q. Two magnets are brought close together and the magnet on your right side is fixed. Select the direction of movement of the magnet on your left side.

1. 
2. 
3. 
4. 

Q. _____ is the most reliable test for magnetism.

1. Attraction
2. Repulsion
3. Rotation
4. Heating

Q. A small magnetic compass is placed close to the middle of a bar magnet. How will the needle of compass rest ?

Q. A magnet is falling towards the ground as shown in the figure below.

Which among the following should be kept on the ground right below the magnet to reduce its speed?

1. A strong magnet with north pole upwards.
2. A plastic sheet.
3. A strong magnet with south pole upwards.
4. An iron sheet.

Q.

Give three properties of magnet.

Q. A bar magnet is cut into two pieces A and B, from the middle, as shown in Fig.

Will the two pieces act as individual magnets? Mark the poles of these two pieces. Suggest an activity to verify your answer. [5 MARKS]

Q. On a table, a weak magnet Y is placed near a strong magnet X, which is firmly fixed on the table, as shown in the figure below.


How will the magnet Y move?

1. Y will not turn at all.
2. Y will turn in the clockwise direction.
3. Y will turn in the anticlockwise direction.
4. Cannot be determined.

Q.

Which of the following materials is/are feebly repelled by a magnet?

1. Water

2. Aluminium

3. Platinum

4. Both (a) and (b)

Q. Like poles of magnets each other, while unlike poles each other.

1. electrify
2. magnetise
3. repel
4. attract

Q. On a table, a weak magnet Y is placed near a strong magnet X, which is firmly fixed on the table, as shown in the figure below.


How will the magnet Y move?

1. Y will not turn at all.
2. Y will turn in the clockwise direction.
3. Y will turn in the anticlockwise direction.
4. Cannot be determined.

Q. The top view of a ball made up of a magnetic material sliding on a smooth table is shown in the image. What will be the direction of the ball after it comes closer to the bar magnet?

1. It will follow the straight path.
2. It will repelled back to its original path.
3. It will go towards the magnet.
4. It will go away from the magnet.

Q. A compass is when a magnet is brought near it for a short period.

1. deflected
2. not affected
3. damaged

Q. Like poles of magnets each other, while unlike poles each other.

1. repel
2. magnetise
3. electrify
4. attract

Q. Like poles of magnets _________ each other and unlike poles of magnets ______ each other.

1. attract, attract
2. repel, attract
3. repel, repel
4. attract, repel

Q. If a bar magnet is cut into two pieces, then each piece will have_________.

1. one pole
2. two poles
3. three poles
4. six poles