Attraction and Repulsion between Poles

Q. is a true test of magnetism.

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

Q. Ring magnets in the image are repelling each other. If top face of blue ring magnet is north pole, then the poles of the bottom face of red magnet and top face of yellow magnet should be _____ and _____ respectively.

1. 
   south, south
2. 
   north, south
3. 
   north, north
4. south, north

Q. Observe the pictures A and B. The cars are initially at rest with magnets fitted on top of it as shown. Which of the following statement(s) is/are correct for the given pictures?

1. Cars 1 and 2 will come closer to each other.
2. Cars 3 and 4 will come closer to each other.
3. Cars 3 and 4 will move away from each other.
4. Cars 1 and 2 will move away from each other.

Q.

When a magnet is suspended freely, it stays in north-south direction. Explain why this happens so?

Q. The earth behaves like a huge bar magnet with its magnetic north pole near the geographical __________ Pole.

Q. The earth itself acts as a huge

1. disc magnet
2. horse shoe magnet
3. bar magnet

Q.

Like poles of magnets ___ each other.

Q.

The North pole of the earth’s magnet is near

1. geographical north
2. geographical south
3. at the center of the earth
4. does not exist

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 Earth's magnetic north and south poles are located at the Earth's geographical north and south pole respectively.

1. True
2. False

Q. Earth's magnetic field is responsible for it's gravitational pull.

1. True
2. False

Q. Harish was asked to identify a soft iron placed in a basket with 9 other magnets of the same shape and size. Which is the easiest way of identifying the iron piece at the earliest?

1. By suspending the magnets one at a time.
2. By conducting repulsion test using any two magnets at a time.
3. By dropping all the magnets into the water.
4. By heating all the magnets together.

Q. _________ is the surest test of detecting magnets.

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

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

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

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 south poles
4. Both X and Y are north poles