IGCSE Cambridge Secondary Grade 8 Study Materials, Online Learning, Question Papers, Classnotes, Practice Test, MCQ | Smartindia Educational Program : www.smartindia.net.in


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Question-1 The glass container in which the reeds in a reed switch is enclosed is filled with:

(A) Water	(B)Inert gas
(C)Oxygen	(D)Hydrogen

Question-2 The word magnet comes from the name of the ancient country of:

(A) Magnesia	(B)Magnesium
(C)Magneta	(D)Magnetiata

Question-3 Which layer of the earth is responsible for its magnetism?

(A) Core	(B)Mantle
(C)Crust	(D)All of the above

Question-4 Which of the following used in ancient China to identify the ideal place of burial, led to the development of compass?

(A) Haematite	(B)Lode stone
(C)Magnetite	(D)Silica

Question-5 If you bring a steel paper clip which is not magnetized towards either pole of a magnet:

(A) You will feel the pull of the magnetic force becomes stronger as the paper clip gets closer to the pole	(B)You will feel the pull of the magnetic force becomes weaker as the paper clip gets closer to the pole
(C)you will feel the pull of the magnetic force becomes stronger as the paper clip gets away from the pole	(D)You will feel the pull of the magnetic force becomes weaker as the paper clip gets away from the pole

Question-6 Who developed electric motor?

(A) Petrus de Peregrinus	(B)William Gilbert
(C)Oestered	(D)Joseph Henry

Question-7 A magnet whose magnetism can be switched on and off by switching a current on and off.

(A) Electromagnet	(B)Electro coil
(C)Magnetic coil	(D)Induction coil

Question-8 The black stone found in the ancient country of magnesia, which had the power to draw pieces of iron to them became known as:

(A) Lode stone	(B)Magnacal
(C)Red stone	(D)Blood stone

Question-9 Groups of particles from which a magnetic material is made form tiny regions called:

(A) Domain	(B)Reed
(C)Relay	(D)Holes

Question-10 Which of the following is a part of an electrical device which moves when a magnetic force of the electromagnet pulls on a piece of iron?

(A) Armature	(B)Electromagnetic relay
(C)Domain	(D)Reed relay

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Cambridge Secondary Grade 8

IGCSE

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