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WorksheetsMagnetism Test
Total questions: 28
Worksheet time: 18mins
The magnetic force on a charged particle is in the direction of its velocity if
it is moving in the direction of the field
it is moving opposite to the direction of the field
it is moving perpendicular to the field
it is moving in some other direction
never
Lines of the magnetic field produced by a long straight wire carrying a current are
in the direction of the current
opposite to the direction of the current
outward from the wire
inward toward the wire
circles that are concentric with the wire
A magnetic field CANNOT
exert a force on a charged particle
change the velocity of a charged particle
change the momentum of a charged particle
change the kinetic energy of a charged particle
change the trajectory of a charged particle
A magnetic field exerts a force on a charged particle:
always
never
if the particle is moving across (or perpendicular) the field lines
if the particle is moving along (or parallel) the field lines
if the particle is at rest
A wire in the plane of the page carries a current directed toward the top of the page as shown. If the wire is located in a uniform magnetic field B directed out of the page, the force on the wire resulting from the magnetic field is
directed to the left
directed out of the page
directed to the right
zero
The direction of the magnetic field at point R caused by the current I in the wire shown is
to the left
to the right
into the page
out of the page
Quadrupling the current in a circuit with constant resistance has the effect of changing the power by what factor?
1/4
1/9
16
4
Poles of a magnet can be separated
True
False
___________________ is the surest test of magnetism
Attraction
Repulsion
Rotation
Which of the following items cannot be magnetised
Iron Bolt
Plastic Pipe
Nickel Block
What will happen if you take a magnetic compass near a bar magnet
The needle will deflect
The needle will reverse the direction
The needle will start rotating
Magnetic lines of force are straight lines
True
False
Which of the paths represents the path of an electron traveling
without any loss of energy through a uniform magnetic field directed
into the page?
A
B
C
D
E
Two parallel wires, each carrying a current I, repel each other with a force F. If both currents are doubled, the
force of repulsion is
2F
1/2 F
4 F
Which coil has the maximum flux in it?
A
B
C
All are equal
Compare the magnetic flux as the loop moves from c to d
The flux increases
The flux decreases
No change
What is the direction of the induced current?
Clockwise
Anti-clockwise
A wire carries a current, creating a magnetic field around itself as shown. The current in the wire is:
Directed to the right
Directed to the left
Equal to the magnetic field
In the same direction as the magnetic field
A compass points toward the south pole of Earth's magnetic field, located near the Earth's geographical ________.
north
south
east
west
In magnetic materials, all of the ________ are pointing in the same direction.
doors
electrons
domains
orbits
Some objects that normally aren't magnetic can become magnetized when connected to a circuit. Items that are magnetized in this way are called ________.
electromagnets
electrons
electrochromic devices
permanent magnets
If you bring 2 magnets together and they push away, what should happen if you turn one around?
the magnets should push further apart
the magnets should be attracted to one another
the magnets should not move
one magnet will float above the other
