NLHSS – CLASS VI (___) – SCIENCE – PPT 1
2. Where are the poles of the Earth’s magnet located?
NAME ____________________________________________
(1)
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MAGNETS
Duration: 10 minutes
Marks: 10
QI. Choose the correct option for each of the following.
1. Among the following, which is a magnetic material?
(a)
Iron
(b)
Carbon
(c) Aluminium
(d)
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(1)
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Zinc
2. Among the following materials, which one is not a magnetic material?
(a) Iron
(b) Nickel
(c) Cobalt
(d) Zinc
QII. Fill in the blanks using the correct words.
(1)
1. When the North Pole of a bar magnet is placed near the North Pole of another
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3. A freely suspended magnet aligns in the North - South direction. Why? (1.5)
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magnet, they ______________________________ each other. (attract/repel)
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2. Magnetite is ____________________________________________ magnet.
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(a natural / an artificial)
QIII. State whether the following statements are True (T) or False (F). (1.5)
1. Mercury is a not a magnetic material.
(____________)
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(____________)
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2. All metals are attracted by magnets.
3. Generally, artificial magnets are more powerful
than natural magnets.
QIV. Name the following in one word each.
1. Provide an example for natural magnets.
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(____________)
(2)
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2. The place where loadstone was first found.
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QV. Answer the following questions.
1. What is the directional property of magnets?
(1)
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4. What will happen if you break a bar magnet into two pieces?
(1)
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NLHSS – CLASS VI (___) – SCIENCE – PPT 2
NAME ____________________________________________
MAGNETS
Duration: 10 minutes
Marks: 10
QI. Choose the correct option for each of the following.
(1)
1. What will happen if a bar magnet is broken into two pieces?
(a) Each piece will act as two separate magnets.
(b) Only one piece will act as a magnet.
(c) Both pieces will not act as magnets.
(d) One piece will have both ends as North Poles and the other piece
will have both ends as South Poles.
2. Copper has to be separated from a mixture of copper turnings and iron filings.
An easy method to separate them is by...
(a) using a magnet.
(b) using a solvent which dissolves only iron.
(c) using a filter.
(d) using a solvent which dissolves only copper.
QII. Fill in the blanks using the correct words.
(1)
1. The principle on which a compass works is ___________________________
QV. Answer the following questions.
1. The outer frame of a magnetic compass is made up of a non-magnetic
material. Why?
(2)
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2. What are the precautions to be taken while handling magnets?
(2)
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property of magnets. (directional / attractive)
2. The earth behaves as a huge magnet whose magnetic North Pole is at the
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geographic ___________________________________ pole. (North/South)
QIII. State whether the following statements are True (T) or False (F). (1.5)
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QVI. Label the North Pole and South Pole in each of the figures
given below.
(2)
1. A compass can be used to find East-West direction.
(____________)
2. The magnetic North Pole of earth is located
at the geographic South Pole.
(____________)
3. When a nickel piece is brought close to the
South Pole of a magnet, it repels the nickel piece.
QIV. Name the following in one word each.
1. Name the device which is used to find directions.
(____________)
(0.5)
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NLHSS – CLASS VI (___) – SCIENCE – PPT 3
NAME ____________________________________________
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MAGNETS
Duration: 10 minutes
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Marks: 10
QI. Choose the correct option.
(0.5)
1. Which of the following is the best suitable method to make
an iron strip into a magnet?
(a) Placing the iron strip near a bar magnet for some time.
(b) Keeping the iron strip in contact with a bar magnet for some time.
(c) Rubbing the iron strip using any one pole of a magnet from
one end to the other end many times.
(d) Rubbing the iron strip using one of the poles of the magnet from
one end to the other end many times and then rubbing it using
the other pole in the same direction.
QII. Fill in the blanks using the correct words.
(0.5)
1. The process by which a magnet loses it magnetic properties is called
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2. Magnets should be preserved with magnetic keepers. Why?
(2)
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____________________________________________________________.
( magnetisation / demagnetisation )
QIII. State whether the following statements are True (T) or False (F). (1)
1. An iron bar can be magnetised by
rubbing with a horseshoe magnet.
(____________)
2. Electrical conductors can
exhibit magnetic properties.
(____________)
QIV. Answer the following questions in one word each.
(2)
1. Name the method by which a magnet loses its magnetic properties.
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2. Name the method which is used to make a magnet.
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3. You are breaking a magnet AB, whose north pole is at A and south pole is at B,
into two pieces along its length. Where will be poles of the two pieces formed?
(2)
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QV. Answer the following questions.
1. Describe the methods of demagnetising a magnet.
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(2)
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