Magnetic force

Q. Like poles attract and unlike poles repel

1. True
2. False

Q.

Why the like poles of magnet repel each other?

Q.

A magnet exerts force of attraction on magnetic substances and the property is the called ___________ property of magnets.

Q. Does putting a magnet in water demagentize it????

Q.

Unlike gravitational force, magnetic force can be attractive or repulsive in nature.

1. True

2. False

Q.

Two bodies need to be in contact with each other for a force to act between them.

1. True

2. False

Q.

Which of the following forces can be used to pick up scattered iron pins?

1. Electrostatic force

2. Magnetic force

3. Frictional force

4. Gravitational force

Q.

Which of the following is/are examples of Non-contact force?

1. Paperclip sticking to a magnet.

2. Raking up the leaves

3. Hair sticking up (static)

4. Hitting the ball with a bat.

Q. The magnet attracts an iron needle by the virtue of its magnetic force.

1. False
2. True

Q. Two magnets are placed close to each other as shown below. Which set will attract each other?

1. 
   
2. 
   
3. 
4. 

Q.

Does a magnet only exert attractive force? Give examples of materials that can be attracted by a magnet.

Q.

Name the force which acts in the case of attraction of common pins towards a magnet.

Q.

Choose the correct one(s) for magnets:

1. Like poles attract.

2. Like poles repel.

3. Unlike poles attract.

4. unlike poles repel.

Q. North and south poles repel each other.

1. True
2. False

Q. The force exerted by magnets on iron objects is called magnetic force.

1. True
2. False

Q. Identify the cases in which magnetic force is acting between the two bodies.

1. A magnet is kept at a small distance from an iron rod.
2. North pole of a magnet is kept in touch with south pole of another magnet.
3. North pole of a magnet is kept at a small distance from north pole of another magnet.
4. A magnet is kept in contact with a non-magnetic piece of wood.

Q. Which of the following cases represents the incorrect property of magnet?

1. 
2. 
3. 
4. 

Q.

why do unlike poles attract while like poles repel?

Q. Which force causes the attraction of iron towards a magnet?

1. Mechanical
2. Electrostatic
3. Magnetic
4. Gravitational

Q. Two objects are interacting under a particular type of force. If they repel each other, which of the forces could be responsible for this?

1. Only magnetic force
2. Only gravitational force
3. Only electrostatic force
4. Either magnetic or electrostatic force

Q.

Which one of the following forces is only attractive in nature?

1. Electric force

2. Gravitational force

3. Magnetic force

4. Mechanical force

Q. Identify the cases in which magnetic force is acting between the two bodies.

1. A magnet is kept at a small distance from an iron rod.
2. North pole of a magnet is kept in touch with south pole of another magnet.
3. North pole of a magnet is kept at a small distance from north pole of another magnet.
4. A magnet is kept in contact with a non-magnetic piece of wood.

Q.

Identify the case(s) in which magnetic force acts on the two bodies.

1. A magnet kept at a small distance from an iron rod

2. North pole of a magnet kept in touch with South pole of another magnet

3. North pole of a magnet kept at a small distance from the North pole of another magnet.

4. A magnet kept in contact with a non-magnetic piece of wood.

Q.

Which of the following forces can be used to pick up scattered iron pins?

1. Electrostatic force

2. Frictional force

3. Gravitational force

4. Magnetic force

Q.

The surest test of magnetism is _________.

Q.

Unlike gravitational force, magnetic force can be attractive or repulsive in nature.

1. True

2. False

Q. Which force causes the attraction of iron towards a magnet?

1. Gravitational
2. Magnetic
3. Electrostatic
4. Mechanical

Q.

A boy while playing with two magnets, got familiar with their attractive and repulsive properties. He observed that the magnets are either attracting or repelling each other from a distance. From this, we can conclude that:

1. Contact is necessary for a force to act.
2. Non-contact forces do not exist.
3. Force may be in contact or not in contact depending upon its nature.
4. No contact is necessary for a force to act.

Q.

Magnetic force cannot pass through a non-magnetic material

1. True
2. False