NEW
Font size
S
M
L
XL
WorksheetsMagnetism
Total questions: 15
Worksheet time: 8mins
Name
Class
Date
1.
What is the force on the particle?
a)
6.20 x 10-17 N
b)
5.25 x 1010 N
c)
2.48 x 10-18 N
d)
5.25 x 10-18 N
2.
What is the force on the wire if it is carrying a current of 3.0 A?
a)
3.0 N
b)
0.33 N
c)
300 N
d)
0.0 N
3.
Which statement is true?
a)
Magnetic field lines run from a south pole to a north pole.
b)
Magnetic field lines run from a north pole to a south pole.
c)
There are no magnetic field lines inside a magnet.
d)
Iron is attracted to north pole but repelled from south pole
4.
What does the first Right Hand Rule tell you?
a)
Fingers point to current and the thumb points toward thumb
b)
Fingers are the magnetic field & thumb direction of current
c)
Fingers are current and thumb is direction of magnetic field
d)
Thumbs up is the OK sign for magnetic field to work
5.
How does an electromagnet work?
a)
You push a magnet into an electrical socket
b)
Wrap wire around a nail and touch it to a magnet
c)
Run electrical current through a coil of wire
d)
push an iron nail into an electrical socket
6.
Which statement about magnets is true?
a)
Magnets can only exist as dipoles
b)
Single magnetic poles are possible but are very rare.
c)
Like poles attract and unlike poles repel.
d)
Iron is the only ferromagnetic material (hence the name).
7.
Which materials are attracted to magnets (ferromagnetic)?
a)
copper and aluminum
b)
nickel and cobalt
c)
wood and salt
d)
plastic and gold
8.
Which statement is true about Earth’s magnetic field?
a)
Magnetic field lines run from geographic north to south.
b)
Magnetic field lines start and stop at the surface of Earth
c)
North magnetic pole isn't the same as north geographic pole.
d)
A compass operates using the electric field of Earth.
9.
A positively charged particle from the sun approaches Earth’s magnetic field as shown.
a)
toward the top of the page
b)
inward toward the page
c)
toward the bottom of the page
d)
outward from the page
10.
A wire is held horizontally from north to south. The current flows toward the south while a compass is placed just above the wire. Which way will the compass point? Ignore B-field of Earth.
a)
North
b)
South
c)
West
d)
East
11.
An electron is over the equator 100 miles above the surface of the Earth. It is at rest with respect to the magnetic field lines of the Earth. What is true about the force on the electron due to the B-field of Earth?
a)
The force points to the east.
b)
The force points toward the west.
c)
The force points upward from the surface of Earth.
d)
The force equals 0 N.
12.
What direction does the magnetic force on the electron (electrons are negative charged) act in?
a)
along the negative y-axis
b)
along the negative x-axis
c)
along the positive z-axis
d)
along the negative z-axis
13.
A proton with a charge e feels a magnetic force F when moving through a magnetic field. If the speed of the proton is doubled, what is the new magnetic force on the proton?
a)
4*F
b)
3*F
c)
2*F
d)
F (same)
14.
An alpha particle has a charge of 2e. A proton (charge e) moves through a magnetic field with velocity v. The alpha particle moves through the same field in the same direction and feels the same force. What is the velocity of the alpha particle?
a)
2v
b)
v
c)
0.5v
d)
0.25v
15.
A current of 5.0 A flows through a wire 10.0 cm long. The wire is in a magnetic field of strength 2.00 T, perpendicular to the wire. What is the magnitude of the magnetic force acting on the wire?
a)
0 N
b)
0.5 N
c)
1.0 N
d)
2.0 N
Reset
