Electricity & Magnetism Test Review
Authored by Katherine Siskind
Science
8th Grade
NGSS covered
Used 36+ times
AI Actions
Add similar questions
Adjust reading levels
Convert to real-world scenario
Translate activity
More...
Content View
Student View
31 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
What causes the poles of the electromagnet in an audio speaker to repeatedly switch directions?
a metal striker that pulls on the magnet
a diaphragm that vibrates around the magnet
a current that rapidly switches direction
a device that opens and closes a circuit
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Which would ultimately cause the armature in an electric motor to spin?
The current in the armature stops.
The gap in the commutator closes.
The current in the armature is reversed.
The commutator loses contact with the brushes.
Tags
NGSS.HS-PS2-5
NGSS.HS-PS3-5
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Which parts of an electric generator are connected?
two brushes
two slip rings
the armature and axle
the armature and commutator
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Beth made the chart shown.
Which headings best complete the chart?
X: Use DC Y: Use AC
X: Use AC Y: Use DC
X: Powered by Current Y: Powered by Magnetism
X: Powered by Magnetism Y: Powered by Current
Tags
NGSS.MS-PS2-3
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
The diagram shows a coiled wire that carries an electrical current.
What do the arrows represent?
the magnetic field
thermal energy
light energy
the electric field
Tags
NGSS.MS-PS2-3
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Georgia moves an unattached piece of wire back and forth over a magnet. Which best explains what will happen?
A current will be induced because the wire moves through a magnetic field.
A current will not be induced because the wire moves through a magnetic field.
A current will be induced because the wire is not part of a closed circuit.
A current will not be induced because the wire is not part of a closed circuit.
Tags
NGSS.HS-PS2-5
NGSS.HS-PS3-5
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Frances drew a diagram to show electromagnetic induction.
Which label belongs in the area marked X?
Current
Magnetic field
Solenoid
Force on wire
Tags
NGSS.HS-PS2-5
Access all questions and much more by creating a free account
Create resources
Host any resource
Get auto-graded reports
Continue with Google
Continue with Email
Continue with Classlink
Continue with Clever
or continue with
Microsoft
%20(1).png)
Apple
Others
Already have an account?
