Repulsion is a Sure Test

Q. If a material is repelled by a magnet, we can infer that the material is a .

1. magnet
2. magnetic material
3. non-magnetic material

Q. North pole of an unmarked magnet can be identified by______________.

1. another magnet having its poles marked
2. bringing an iron bar near it
3. freely suspending it
4. using iron filings

Q.

Repulsion is the true test for magnetism.

1. True

2. False

Q.

________ is the most reliable test for magnetism.

1. Rotation

2. Repulsion

3. Attraction

4. Heating

Q. _________ is the surest test of detecting magnets.

1. Radiation
2. Repulsion
3. Attraction
4. Refraction

Q. When a magnet is placed near a rectangular bar, the bar moved away. What can be concluded about the bar?

1. It is a magnet.
2. It is made up of aluminium.
3. It is made up of iron.
4. It is not a magnet.

Q.

________ is the most reliable test for magnetism.

1. Rotation

2. Repulsion

3. Heating

4. Attraction

Q. Which of the following is a non-magnetic material?

1. Steel
2. Iron
3. Nickel
4. Silver

Q.

Repulsion is the true test for magnetism.

1. True

2. False

Q. If a magnet repels an object, what can be said about the object?

1. The object is a magnet.
2. The object is a magnetic material.
3. The object is a non-metal.
4. The object is a non-magnetic material.