WorksheetsMagnet Quiz
Total questions: 9
Worksheet time: 4mins
Name
Class
Date
1.
What is a permanent magnet?
a)
The permanent magnet has its own magnetic field.
b)
A permanent magnet doesnt have its own magnetic field.
c)
A permanent magnet never repels.
2.
What is an induced magnet?
a)
An induced magnet can produce its own magnetism.
b)
An induced magnet has aligned spins.
c)
An induced magnet becomes a magnet when it is placed in the magnetic field of a permanent magnet.
d)
The induced magnet is an electoric thingy.
3.
How can you find if both magnets are permanent?
a)
If there is no repulsion between the 2 magnets.
b)
If there is repulsion between the 2 magnets.
c)
If it attracts to each other.
d)
By picking up magnetic materials such as iron nails.
4.
What are the three magnetic materials?
a)
Nickel, Einsteinium and pottasium
b)
Iron, magnesium and aluminium
c)
Tungsten, cobalt and nickel
d)
Iron, cobalt and nickel
5.
Name AN advantage of an electromagnet....
a)
They generate an electromagentic field which may disrupt other electronic devices.
b)
They require a lot of electricity to heat up so that it works.
c)
It can be switch on and off.
d)
The electromagnet is cool.
6.
What is true about solenoids?
a)
Solenoids are permanent magnets.
b)
The field around a solenoid has the shape as a bar magnet.
c)
the part inside the coils is the weakest
7.
What can happen if you place a compass near a strong magnet?
a)
It will point at north forever.
b)
The compass will stay normal as usual.
c)
The compass will point at a wrong direction.
8.
What is the function of a relay switch?
a)
The relay switch can switch on and off.
b)
The relay switch controls a high current circuit
c)
The relay switch controls the electric bell.
9.
What is the function of the striker in the electric bell?
a)
It controls the whole circuit.
b)
It strikes the electric magnet to work.
c)
it strikes the bell to make a sound
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