Gravity, Magnetism and Electricity
Authored by Charles Martinez
Science
8th Grade
NGSS covered
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21 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Adding a second battery to an electromagnet will _____.
decrease the resistance in the wire
decrease the magnetism in the wire
increase the current flowing through the wire
increase the amount of current needed to magnetize the wire
Tags
NGSS.HS-PS2-5
NGSS.HS-PS3-5
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following statements describes an electric generator?
A magnet is rotated through a coil of wire to produce an electric current.
Electric potential in a rotating coil of wire creates a permanent magnet.
An electrical current causes a coil of wire to rotate in a magnetic field
Forces from a permanent magnet allow a coil of wire to rotate.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which diagram correctly represents the direction of the magnetic field around a bar magnet?
Tags
NGSS.MS-PS2-3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
As the number of turns on an electromagnet is decreased, the pole strength of the electromagnet
Decreases
Increases
Remains the same
Tags
NGSS.HS-PS2-5
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which diagram best illustrates the magnetic field that exists around a current- Carrying wire?
Tags
NGSS.MS-PS2-3
NGSS.MS-PS2-5
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Two magnets move away from each other. What happens to the magnetic attraction between them as they become further apart?
It decreases
it increases
it becomes zero
it does not change
Tags
NGSS.MS-PS2-3
NGSS.MS-PS2-5
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A magnet sticks to a table leg. Based on this information, which material could the table leg be made of?
Iron
wood
copper
aluminium
Tags
NGSS.MS-PS2-3
NGSS.MS-PS2-5
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