Waves, Electricity, & Magnetism
Authored by Kollin Falk
Science
8th Grade
NGSS covered
Used 25+ times
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47 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following would increase the strength of an electromagnet?
Decrease the voltage by using a smaller power source
Increase the number of turns or loops of wire around the core of the electromagnet.
Use string as the wire material.
Use a thinner wire.
Tags
NGSS.MS-PS2-3
NGSS.MS-PS2-5
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is/are the difference(s) between a magnet and an electromagnet?
A magnet can be turned on/off.
An electromagnet is stronger.
An electromagnet can be turned on/off.
Both A and B
Both B and C
Tags
NGSS.MS-PS2-3
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A _______________ transforms mechanical energy into electrical energy.
magnetic field
electromagnet
electric motor
generator
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The area of magnetic force around a magnet is known as its ______________.
magnet
magnetism
magnetic field
electrical current
Tags
NGSS.MS-PS2-5
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Electrons have what type of charge?
positive
negative
neutral
none of the above
Tags
NGSS.MS-PS2-3
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Protons have what type of charge?
positive
negative
neutral
none of the above
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
_________________ is the attractive and repulsive forces between two poles.
electrical forces
electrical current
magnetic forces
Tags
NGSS.MS-PS2-3
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