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WorksheetsElectromagnetism 1
Total questions: 15
Worksheet time: 21mins
Name
Class
Date
1.
Passing a current through a piece of wire causes a magnetic field to form around the wire.
a)
True
b)
False
2.
Passing an electric current around an iron object will temporarily make the object magnetic.
a)
True
b)
False
3.
Magnetic fields are created by moving _______.
a)
Atoms
b)
Protons
c)
Electric Charges
d)
Metals
4.
In order for an object to become magnetic, its electrons must ______.
a)
Move in random order
b)
Line up or face opposite directions
c)
Go to opposite sides of the object
d)
Line up or face the same direction
5.
When an electromagnet's circuit is broken, it loses its magnetic properties.
a)
True
b)
False
6.
The magnetic field of an electromagnet ______.
a)
Can be turned on and off.
b)
Is permanent.
c)
Lasts for only one hour.
d)
Lasts for one day.
7.
Electricity is the flow of ____________.
a)
Protons
b)
Neutrons
c)
Electrons
8.
When a bar magnet is broken in half, what is the result?
a)
Two north poles
b)
Two south poles
c)
Two north poles and two south poles
d)
The bar loses its magnetic properties
9.
A magnet's magnetic field exists ________.
a)
Only on the north pole
b)
Only on the south pole
c)
On both poles
d)
Around the entire magnet
10.
a)
Series Circuit
b)
Parallel Circuit
11.
The Law of Conservation of Energy states that...
a)
energy can be created when a new power source is introduced.
b)
energy can neither be created nor destroyed.
c)
energy is destroyed when a circuit is broken.
d)
energy can be created using a generator.
12.
An electric motor converts _____________.
a)
mechanical energy to electrical energy.
b)
electrical energy to mechanical energy.
c)
mechanical energy to thermal energy.
d)
thermal energy to electrical energy.
13.
An electric generator converts ___________.
a)
mechanical energy to electrical energy.
b)
electrical energy to mechanical energy.
c)
mechanical energy to thermal energy.
d)
thermal energy to electrical energy.
14.
What is one way to increase the strength of an electromagnet?
a)
Increase the size of the nail.
b)
Reduce the electric current.
c)
Wrap more coils of wire around the nail.
d)
Wrap less coils of wire around the nail.
15.
What is the difference between static electricity and an electric current.
a)
An electric current is stronger than static electricity.
b)
An electric current is the build up of electrons while electrons flow freely in static electricity.
c)
Static electricity is the build up of electrons while electrons flow freely in an electric current.
d)
Static electricity is typically used more than an electric current to power appliances.
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