Repulsion is a Sure Test

Q.

Repulsion is the true test for magnetism.

1. True

2. False

Q. It is observed that a pencil sharpener gets attracted to both the poles of the magnet. Can you explain ?

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.

Q. How will you make a toy using magnet? Mention the poperty/properties of magnet on which the toy is built. [4 MARKS]

Q. Which of the following statements is false about the needle in a magnetic compass?

1. It can attract magnetic materials.
2. When a magnet is brought near, it gets deflected.
3. It aligns with the Earth's magnetic field even when another magnet is brought near it.
4. When freely suspended, it comes to rest in the Earth's North-South direction.

Q. List any four properties of a magnet.

Q. A magnet has ________ pole(s).

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

Q. A magnetic material gets ______ to/near a magnet.

1. attracted
2. repelled
3. rotated
4. destroyed

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.

___________ is the surest test of magnetism.

Q.

________ is the most reliable test for magnetism.

1. Rotation

2. Repulsion

3. Heating

4. Attraction

Q. Which of the following is a characteristic of a magnet?
(a) repulsion
(b) attraction
(c) none of these
(d) both of these

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

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

Q. List any four properties of a magnet.

Q. Which of the following statements are true about the needle in a magnetic compass?

1. It can attract magnetic materials.
2. When a magnet is brought near, it gets deflected.
3. It aligns with the Earth's magnetic field even when another magnet is brought near it.
4. When freely suspended, it comes to rest in the Earth's north-south direction.

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. 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. 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.