Electromagnetism and Magnetic Fields
Passage
•
Science
•
6th - 8th Grade
•
Practice Problem
•
Easy
Virginia D
Used 6+ times
FREE Resource
12 questions
Show all answers
1.
OPEN ENDED QUESTION
5 mins • 1 pt
Start with the bar magnet. What happens to the magnetic field as you move the magnet around?
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2.
OPEN ENDED QUESTION
5 mins • 1 pt
Switch to the electromagnet. What happens when you move it around the magnetic field?
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3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Using the electromagnet, what happens when you lower the voltage to zero?
The magnetic field continues changing as before.
The magnetic field disappears.
The magnetic field gets stronger.
The magnetic field gets weaker.
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Using the pickup coil, move the pickup coil near the magnet. When does an electric current get generated and turn on the light?
When the pickup coil is far from the magnet, it generates electric current.
When the pickup coil is near the magnet, it generates electric current.
When the pickup coil is moving near the magnet, it generates electric current.
When the pickup coil is moving far from the magnet, it generates electric current.
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Using the electromagnet, how does the strength of the magnetic field change with the number of coils?
With more coils, the field is stronger.
With less coils, the field is stronger.
It does not change.
6.
MULTIPLE CHOICE QUESTION
5 mins • 3 pts
Using the pickup coil, how does the brightness of the light change with the number of coils?
With more coils, the light is brighter.
With fewer coils, the light is brighter.
It has no effect/does not change.
7.
OPEN ENDED QUESTION
10 mins • 1 pt
Using your new understanding of magnetic fields and electromagnets, explain the force of electromagnetic induction.
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