Find Direction using Magnet

Q. The north pole of a bar magnet points towards the pole of the Earth.

1. geographical south
2. geographical north
3. magnetic north

Q.

A compass has a small balanced pointer that points towards the North-South direction. This is because:

1. Gravity deflects the needle point towards North-South.

2. The compass needle points to random direction.

3. The Earth has a magnetic field and the pointer is magnetic.

4. The motion of compass is influenced by other celestial bodies.

Q. A freely suspended magnet's North pole aligns itself with the geographic South pole of the Earth and its South pole aligns with the geographic North pole of the Earth.

1. True
2. False

Q. Where is a magnetic compass functional?

1. Only on land
2. Only on high mountains
3. Within Earth's magnetic field
4. Only in oceans or seas

Q. Which material can help you find your way?

1. A piece of plastic
2. Bar magnet
3. Thread
4. Wooden piece

Q. A bar magnet has no markings to indicate its poles. How would you find out near which end is its north pole located? (3 marks)

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

1. False
2. True

Q. When freely suspended on or near the Earth's surface, a bar magnet always orients itself to a specific direction.

1. True
2. False

Q. What is the compass needle used for?

1. Navigation
2. Measuring current
3. Measuring temperature
4. Detecting magnetic material

Q. How are the magnets kept safely ? What is the role of keepers in storing the magnets ?

Q. If a magnetic compass is not directing towards north-south direction, which among the followings can be the reason for this?

1. The compass is damaged.
2. The compass is placed near a strong magnet.
3. The compass is in space.
4. Presence of human beings is disturbing the compass reading.

Q. To find out whether a metal piece is a magnet or not, what material(s) can one use from the following?

1. Thread
2. Compass
3. A piece of magnetic material
4. A piece of non-magnetic material

Q. Magnetic compass on the earth surface always aligns itself in _____________ direction in absence of any other strong magnet beside it.

1. east-west
2. north-south
3. upward-downward
4. east-south

Q. What do you mean by the attractive and directive property of magnet?

Q. To find out whether a metal piece is a magnet or not, what material(s) can one use from the following?

1. Thread
2. Compass
3. A piece of magnetic material
4. A piece of non-magnetic material

Q. How are the magnets kept safely ? What is the role of keepers in storing the magnets ?

Q. To find out whether a metal piece is a magnet or not, what material(s) can one use from the following?

1. Thread
2. Compass
3. A piece of magnetic material
4. A piece of non-magnetic material

Q.

In olden days, sailors used ___________ to find direction.

1. horse-shoe magnet

2. bar magnet

3. ring magnet

4. electromagnet

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

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