CIE iGCSE Co-Ordinated Science P4.1 Simple phenomena of magnetism Exam Style Questions Paper 2
Question
A bar of soft iron and a bar of steel are held in contact with a strong magnet.
Both bars become magnetised.
The two bars are now moved away from the magnet.
Which statement about the bars is correct?
(A) Both bars lose their magnetism.
(B) Neither of the bars loses its magnetism.
(C) The soft iron bar loses its magnetism but the steel bar retains its magnetism.
(D) The steel bar loses its magnetism but the soft iron bar retains its magnetism.
▶️Answer/Explanation
Ans : C
Question
The diagram shows two soft-iron rods JK and LM placed between the poles of two magnets.
Which row shows the poles induced in the soft-iron rods?
▶️Answer/Explanation
Ans: D
Question
A bar magnet is brought near to a metal rod. The metal rod is attracted to the magnet.
The magnet is then turned around so that the N-pole is on the right.
The magnet is again brought near to the metal rod and is again attracted to the magnet.
What could the metal rod be?
(A) another bar magnet
(B) a piece of aluminium
(C) a piece of copper
(D) a piece of iron
▶️Answer/Explanation
Ans : D
Question
Which type of magnet can be switched on and off many times per second?
(A) an electromagnet only
(B) a permanent magnet only
(C) both electromagnets and permanent magnets
(D) neither electromagnets or permanent magnets
▶️Answer/Explanation
Ans: A