WorksheetsElectromagnetism
Total questions: 24
Worksheet time: 13mins
Name
Class
Date
1.
A device that increases or decreases the voltage of alternating current
a)
A. magnet
b)
B. magnetic pole
c)
C. transformer
d)
D. magnetic force
2.
The attraction or repulsion created by spinning electric charges
a)
A. electric generator
b)
B. magnetic force
c)
C. solenoid
d)
D. electromagnet
3.
Any material that attracts iron or materials containing iron
a)
A. electric generator
b)
B. solenoid
c)
C. magnet
d)
D. magnetic force
4.
One of two points, such as the ends of a magnet, that have opposing magnetic qualities
a)
A. magnetic pole
b)
B. magnetic force
c)
C. transformer
d)
D. electric generator
5.
A device that converts electrical energy into mechanical energy
a)
A. electromagnet
b)
B. electromagnetic induction
c)
C. electric motor
d)
D. electromagnetism
6.
The process of creating a current in a circuit by changing a magnetic field
a)
A. electric generator
b)
B. electric motor
c)
C. electromagnetic induction
d)
D. magnet
7.
The interaction between electricity and magnetism
a)
A. magnetic force
b)
B. electromagnetism
c)
C. electromagnet
d)
D. magnetic pole
8.
A device that converts mechanical energy into electrical energy
a)
A. electric generator
b)
B. electric motor
c)
C. electromagnetic induction
d)
D. electric Slide
9.
A coil of wire with an electric current in it is called a(n)
a)
A. transformer.
b)
B. electric generator.
c)
C. electric motor.
d)
D. solenoid.
10.
Whether a material is magnetic or not depends on which of the following?
a)
A. the
material’s density
b)
B. the
material’s mass
c)
C. the
material’s atoms
d)
D. the
material’s weight
11.
What can demagnetize a magnet?
a)
A. high altitudes
b)
B. high temperatures
c)
C. low altitudes
d)
D. low temperatures
12.
As electrons move, they make
a)
A. electromagnetism.
b)
B. auroras.
c)
C. ferromagnetism.
d)
D. magnetic
fields.
13.
What is created when a wire moves between the poles of a magnet?
a)
A. a ferromagnet
b)
B. a solenoid
c)
C. an electromagnet
d)
D. an electric current
14.
A compass needle responds to a magnetic field, because the compass needle is a
a)
A. generator.
b)
B. motor.
c)
C. magnet.
d)
D. transformer.
15.
What is created when a magnet moves through a coil of wire?
a)
A. an
electromagnet
b)
B. a ferromagnet
c)
C. a
solenoid
d)
D. an
electric current
16.
What uses an electromagnet to measure electric current?
a)
A. armature
b)
B. commutator
c)
C. galvanometer
d)
D. solenoid
17.
A coil of wire that has a soft iron core and that acts as a magnet when an electric current is in the coil is called a(n)
a)
A. temporary
magnet.
b)
B. permanent
magnet.
c)
C. electromagnet
d)
D. ferromagnet.
18.
Increasing the electric current in the wire is one way to
a)
A. strengthen
a solenoid’s magnetic field.
b)
B. make
an electromagnet become a solenoid.
c)
C. make
a solenoid become an electromagnet.
d)
D. weaken
a solenoid’s magnetic field.
19.
Which of the following are two effects of Earth’s magnetic field?
a)
A. compass
points to geographic north, auroras seen at both poles
b)
B. compass
points to magnetic north, auroras seen at both poles
c)
C. compass
points to geographic south, auroras seen at the equator
d)
D. compass points to geographic north, auroras seen
at the equator
20.
Increasing the number of loops per meter in the coils of a solenoid is one way to
a)
A. increase the wire’s electric current
b)
B. strengthen the solenoid’s magnetic field.
c)
C. decrease the wire’s
electric current.
d)
D. weaken the solenoid’s magnetic field.
21.
What can you make visible by sprinkling iron filings around a magnet?
a)
A. the areas called domains
b)
B. the magnetic forces
c)
C. the north and south poles
d)
D. the magnetic field lines
22.
Which of the following are two kinds of magnets?
a)
A. atoms, domains
b)
B. magnetic fields, magnetic poles
c)
C. ferromagnets, electromagnets
d)
D. magnesia magnets, magnetite magnets
23.
How does a galvanometer make use of the relationship between electric current and magnetic fields?
a)
A. Galvanometers
generate electric current.
b)
B. Galvanometers
change AC to DC.
c)
C. Galvanometers
use magnets to detect current.
d)
D. Galvanometers
use magnets to convert current into other forms of energy.
24.
What did Faraday’s experiments with magnets and electromagnetic induction demonstrate?
a)
A. Magnetic
fields are made when the electric field changes.
b)
B. Strong electric current makes electromagnets.
c)
C. Electric
current is made when the magnetic field changes.
d)
D. Strong
electromagnets make electric current.
100 %
