WorksheetsLens's law
Total questions: 13
Worksheet time: 10mins
Name
Class
Date
1.
In what direction is the magnet moving?
a)
Left
b)
Right
c)
Up
d)
Down
2.
In what direction is the magnet moving?
a)
Left
b)
Right
c)
Up
d)
Down
3.
Electromagnetic induction is change in ___________________.
a)
surface area
b)
magnetic poles
c)
magnetic flux
4.
Voltage can be induced in a wire by
a)
a. moving the wire near a magnet.
b)
b. moving a magnet near the wire.
c)
c. changing the current in a nearby wire.
d)
d. all of these
5.
What would happen if I move a bar magnet in and out of a coil of copper wire?
a)
Electric current would disappear
b)
The magnet would explode
c)
Electric current will flow through the wire
d)
It would produce a gravitational field
6.
A magnet is moved in and out of a coil of wire connected to a high-resistance voltmeter. If the number of coils doubles, the induced voltage
a)
quadruples
b)
doubles
c)
is the same
d)
halves
7.
___ Law says that the Induced current is proportional to the change of magnetic flux
a)
Lenz'
b)
Faraday's
c)
Ampere's
8.
Which activity will produce the highest current?
a)
Move the magnet bar into the coil while the coil remains stationery
b)
Move the coil into the magnet bar while the magnet remains stationery
c)
Move the coil and magnet towards each other
d)
Move the coil and magnet away from each other
9.
Which action will increase the deflection of the galvanometer pointer?
a)
The magnetic pole is reversed
b)
The number of turns of coils is increased
c)
The coil is made from insulated wire
d)
The magnet is slowly pushed into the coil
10.
The voltmeter is at 0 in this image. How would you manipulate the experiment to create electricity (measured in volts)?
a)
Flip the magnet around so the North pole is facing out
b)
Move the magnet back and forth
c)
Take the magnet out
d)
Add more coils around the paper cylinder
11.
Electromagnetic induction is taking place in this experiment. How much electricity is being produced?
a)
-10 Volts
b)
10 Volts
c)
100 Volts
d)
This question cannot be answered based on this image
12.
How could the experimenter increase the amount of electricity being induced by this experiment?
a)
Increase the number of coils
b)
Decrease the number of coils
c)
Flip the magnet around
d)
Nothing, the amount of electricity cannot be increased
13.
What benefit is gained by the addition of the iron core in an electromagnet?
a)
It makes a strong magnet weaker
b)
It makes a weak magnet stronger
c)
There is no benefit at all
d)
It lets currents interact with each other
100 %
