Magnetism II - JSS3 Basic science Past Questions and Answers - page 1
What are the two types of magnetic poles?
North and south poles
East and west poles
Positive and negative poles
Red and blue poles
What is the region around a magnet where its force can affect other objects called?
Magnetic region
Force zone
Magnetic field
Magnetic sphere
What happens when opposite magnetic poles are brought near each other?
They repel each other
They attract each other
They spin around each other
They become neutral
How should you clean magnets?
Use harsh chemicals
Rub vigorously with a rough cloth
Clean gently with a soft cloth
Dip in water
Which material can magnets attract?
Plastic
Wood
Iron, nickel, and cobalt
Glass
What can high temperatures do to magnets?
Strengthen them
Demagnetize them
Make them attract non-magnetic materials
Change their color
How should you store magnets to prevent them from losing their magnetism?
Separately
Near electronic devices
In pairs or with magnetic shielding
In direct sunlight
What happens when similar magnetic poles are brought near each other?
They attract each other
They repel each other
They merge together
They become neutral
Which objects should magnets be kept away from to prevent interference?
Books
Electronic devices, credit cards, and pacemakers
Plants
Food
What can dropping magnets frequently do to them?
Strengthen them
Break or weaken them
Make them attract non-magnetic materials
Change their shape