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WorksheetsMagnetic Field
Total questions: 15
Worksheet time: 10mins
Name
Class
Date
1.
Magnets can interact without touching.
a)
True
b)
False
2.
What happens when two north poles of a magnet are placed together?
a)
they repel
b)
they attract
c)
they cancel each other out
d)
the strength of the magnet is doubled
3.
A north pole and a south pole will attract.
a)
True
b)
False
4.
The area of magnetic force around a magnet is known as its _____________.
a)
magnetic field
b)
magnetic declination
c)
magnetic fan lines
d)
magnetic tan lines
5.
A ________ is a device that has a magnet on a needle that spins freely. It is used for navigation because its needle usually points north.
a)
calculator
b)
ruler
c)
compass
d)
map
6.
Magnetic poles that are unlike ________and magnetic poles that are alike ___________.
a)
run; stay
b)
attract; repel
c)
stay; repel
d)
repel; attract
7.
The SI unit of magnetic field is
a)
weber
b)
guass
c)
tesla
d)
farad
8.
The strongest part of a magnet is...
a)
the bars.
b)
the force field.
c)
the poles.
d)
the middle.
9.
Are the magnetic field lines in the picture correct?
a)
Yes, because they point from north to south.
b)
No, because they point from north to south (they're supposed to go the other way).
c)
Yes, because the North pole is on the left in all pictures.
d)
No, because the North pole is on the left in all pictures (it's supposed to be on the right).
10.
What does the following represent?
⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙
⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙
⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙
⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙
⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙
⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙
a)
A crowd with binoculars
b)
A bunch of coaxial cables
c)
Uniform magnetic field directed into the screen away from you
d)
Uniform magnetic field directed out of your screen at you
11.
What does the following represent?
⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗
⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗
⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗
⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗
⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗
⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗
a)
Multiplied by a billion
b)
A piece of modern art
c)
Uniform magnetic field directed into the screen away from you
d)
Uniform magnetic field directed out of your screen at you
12.
What is the symbol for magnetic field strength?
a)
T
b)
M
c)
B
d)
F
13.
Earth's magnetic poles are in the same place as the geographic poles.
a)
True
b)
False
14.
What is the shape of a magnetic field around a wire?
a)
b)
c)
d)
15.
A wire carries a current, creating a magnetic field around itself as shown. The current in the wire is:
a)
Directed to the right
b)
Directed to the left
c)
Equal to the magnetic field
d)
In the same direction as the magnetic field
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