

Electromagnetism and Its Applications Quiz
Interactive Video
•
Physics
•
9th - 10th Grade
•
Practice Problem
•
Hard
Jennifer Brown
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary use of a lifting magnet?
To break circuits
To lift ferromagnetic materials like scrap iron
To move non-magnetic materials
To generate electricity
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following materials can be moved using a lifting magnet?
Wood
Plastic
Rock
Iron
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What component of the electric bell strikes the gong to produce sound?
The spring
The switch
The soft iron core
The hammer
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the electric bell stop the current flow temporarily?
By turning off the power source
By using a capacitor
By disconnecting the circuit with a switch
By using a resistor
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens when the hammer of an electric bell hits the gong?
The electromagnet is deactivated permanently
The current increases
The circuit is disconnected
The circuit remains connected
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main function of a circuit breaker?
To automatically cut off current when it becomes too high
To convert AC to DC
To increase current flow
To provide a constant power supply
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What triggers a circuit breaker to disconnect the circuit?
A decrease in current
An increase in current
A constant current flow
A decrease in voltage
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