Magnetic Poles of Earth

Q.

The magnetic axis of earth makes an angle of ___ with the axis of rotation of the earth.

Q.

The magnetic north and south poles of the earth are different from its geographical north and south poles.

1. False

2. True

Q.

How is magnetic field mapped with the help of a compass?

Q.

A small magnet is suspended by a silk thread from a rigid support such that the magnet can freely swing. How will it rest?

1. It will rest with its south pole towards geographic north, making some angle with the horizontal.

2. It will rest with its north pole towards geographic north in a perfect straight line.

3. It will rest with its north pole towards geographic south, making some angle with the horizontal.

4. It will rest in geographic north-south direction with north pole towards geographic north, making some angle with the horizontal.

Q.

A small magnet is suspended by a silk thread from a rigid support such that the magnet can freely swing. How will it rest ? Draw a diagram to show it.

Q. Which of the following statements is correct?

1. Steel is not a magnetic material.
2. Rubber is a magnetic material.
3. Maximum iron filings stick to the middle of a bar magnet when it is brought closer to them.
4. Bar magnets always point toward the North-South direction.

Q.

A freely suspended magnet rests in the geographic __________ direction.

Q.

If a bar magnet is cut lengthwise into $3$ parts, the total number of poles will be

1. $2$

2. $3$

3. $4$

4. $6$

Q. The needle in the compass gets attracted by the magnetic poles and indicates the geographical poles of the Earth.

1. False
2. True

Q. When suspended in air, the direction in which the magnets align themselves is

1. East-West
2. North-South
3. North-East
4. South-West

Q. _______ is a device used by navigators to find the directions.

1. Thermometer
2. Magnetic compass
3. Headlight
4. Speedometer

Q.

Terrestrial magnetism deals with the magnetic field of

1. Earth

2. Outer Space

3. Moon

4. Sun

Q. Magnetic north and south poles of the Earth are different from the geographical poles.

1. False
2. True

Q. A freely suspended magnet on Earth aligns itself in the _________ direction.

1. North-South
2. East-West
3. East-South
4. North-West

Q. Poles of a magnet can be seperated by breaking them into two halves.

1. True
2. False

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

1. True
2. False