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 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-2 When a material that can show magnetic properties such as a steel paper clip is attracted to the end of a magnet, it also becomes a magnet by a process called:

(A) Magnetic induction	(B)Thermal induction
(C)Solar magnetism	(D)Metallic induction

Question-3 Who described the earth as behaving as if it contained a huge magnet?

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

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 Which layer of the earth is responsible for its magnetism?

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

Question-6 Who believed that the magnet pointed to the outer sphere of the heavens?

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

Question-7 In which direction does a bar magnet align itself, when suspended from a thread?

(A) North south	(B)East west
(C)North east	(D)South east

Question-8 The reeds in a reed switch are made of:

(A) Soft iron	(B)Pig iron
(C)Magnetite	(D)Alnico

Question-9 Who developed electric motor?

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

Question-10 The place in the bar magnet where the magnetic force is strongest is called:

(A) Poles	(B)Domain
(C)Centre	(D)Terminals

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Cambridge Secondary Grade 8

IGCSE

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