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WorksheetsHW: Magnetic Force Concepts
Total questions: 18
Worksheet time: 11mins
Looking at the field lines in this picture, these two magnets are ________
Attracting
Repelling
Attracting and Repelling
Doing nothing
Based on the magnetic field lines diagram, what will happen to these two sets of magnets?
Set 1 magnets will repel, set 2 magnets will attract
Set 1 magnets will attract, set 2 magnets will attract
Set 1 magnets will attract, set 2 magnets will repel
Both sets of magnets will repel
What will happen when these magnets are let go?
The magnets will not move because they are not touching.
The magnets will move closer to each other because the magnetic force will pull them together.
The magnets will move away from each other because the magnets are not touching.
The magnets will move away from each other because the magnet force will push them apart.
Based on the magnetic field lines diagram, what will happen next with these sets of magnets?
In both sets the magnets will attract.
In both sets the magnets will repel.
In Set 1 the magnets will repel and in Set 2 the magnets will attract.
In Set 1 the magnets will attract and in Set 2 the magnets will repel.
Will these magnets attract or repel?
Attract
Repel
Will these magnets attract or repel?
Attract
Repel
A beam of positively charged alpha particles enters
the magnetic field between the poles of a magnet.
In which direction is the magnetic force on the beam?
Down the page
Into the page
Out of the page
Up the page
An electron which moves with a speed of 30000
𝑚/𝑠 parallel to a uniform magnetic field of 0.40 𝑇
experiences a force of what magnitude?
0
2.2 E -24
1.9 E -15
4.8 E -14
The diagram shows a beam of electrons entering a
magnetic field. What is the effect of the magnetic field on the electrons?
They are deflected into the plane of the
diagram
They are deflected out of the plane of the
diagram
They are deflected towards the bottom of
the diagram
They are deflected towards the top of the
diagram.
A proton is released such that it has an initial speed of
4.0 E 5 𝑚/𝑠 from left to right across the page. A
magnetic field of 1.2 𝑇 is present at an angle of 30° to
the horizontal direction (or positive x axis). What is the
magnitude of the force experienced by the proton?
4.8 E -25
1.3 E -19
3.8 E -14
7.5 E -14
A stationary positive charge +Q is located in a
magnetic field B, which is directed toward the right
as indicated. Which of the following is true regarding
the direction of the magnetic force on Q?
right
left
up
no force
Three particles travel through a region of space
where the magnetic field is out of the page, as shown
in the figure. The electric charge of each of the three
particles is, respectively.
1 is neutral, 2 is negative, and 3 is
positive
1 is neutral, 2 is positive, and 3 is
negative
1 is positive, 2 is negative, and 3 is
neutral
1 is negative, 2 is neutral, and 3 is
positive
A current carrying wire lies between the poles of
two magnets, as shown. What is the direction of the force on the wire?
Into the plane of the paper
Out of the plane of the paper
Towards the N-pole
To the right
A vertical wire carrying a current in the upward direction is placed in a horizontal magnetic field directed towards north. The wire will experience a force directed towards
east
west
north
south
A current-carrying wire of length 50 cm is
positioned perpendicular to a uniform magnetic field.
If the current is 10.0 A and it is determined that there
is a resultant force of 3.0 N on the wire due to the
interaction of the current and field, what is the
magnetic field strength?
6.7 E -3 T
1.8 E -3 T
0.6 T
1.5 T
A wire is lying horizontally in the north-south
direction and the horizontal magnetic field is toward
the east. Some positive charges in the wire move
north and an equal number of negative charges move
south. The direction of the force on the wire will
EAST
WEST
INTO THE PAGE
OUT OF THE PAGE
A 2.0 m wire segment carrying a current of
0.60 A oriented parallel to a uniform magnetic field of
0.50 T experiences a force of what magnitude?
0 N
0.15 N
0.30 N
6.7 N
