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WorksheetsCheckpoint: Generators
Total questions: 15
Worksheet time: 8mins
What happens when you move a bar magnet in and out of a coil of copper wire?
Electric current would be produced in the magnet.
The magnet would do nothing to the coil of wire.
Electric current would be produced in the copper wire
It would make the copper wire produce a magnetic field.
Which actions would decrease the current? (Mark all that apply)
Increase the speed of the moving magnet into the solenoid
Decrease the speed of the moving magnet into the solenoid
Decrease the number of coils in the solenoid
Increase the number of coils in the solenoid
Flip the magnet so the South end goes into the coil.
Which action will increase the current? (Mark all that apply)
Flip the magnet so the N side goes into the coil.
Increase the number of coils of wire.
Use a stronger magnet.
Move the magnet slowly into the coil
Leave the magnet inside the coil.
How do you produce current in this experimental setup?
Flip the magnet around so the North pole is facing out
Move the magnet back and forth through the coil
Leave the magnet alone in the coil.
Add more coils of wire.
How would the current change if the south pole (instead of the north pole) of the magnet is pushed into the solenoid at the same speed?
The current would be the same value.
The current would be the opposite value.
The current would be a larger value.
The current would be a smaller value.
How could you decrease the amount of electricity being induced by this experiment?
Increase the number of coils
Decrease the number of coils
Flip the magnet around
Move the magnet through the coils faster.
If 10 units of current are generated in this setup, how could you generate 5 units of current? (Mark all that apply)
Move the magnet slower
Flip the magnet from S to N
Use a stronger magnet at the same speed
Use a weaker magnet at the same speed
All of the following would increase the current induced by the magnet EXCEPT
move the magnet faster
add more coils to the wire
reversing the magnet direction
use a stronger magnet
What cause-and-effect statement best describes what happens in a generator?
a changing magnetic field causes current to be produced in a wire.
a current in a wire causes a magnetic field to be produced around the wire
Can you produce current in a stationary coil of wire with a magnet that is not moving?
Yes, having a magnet near a wire is enough to produce current in a wire
No, the magnetic field has to be changing to produce current in a wire.
No, a wire and magnet will never produce current in any situation.
A generator is a device that converts _____ energy into _____ energy.
magnetic; mechanical
This flashlight has what components? (Mark all that apply)
A magnet
A coil of wire
A lightbulb
A battery
Descirbe how this flashlight works.
The magnet moves through the coil of wire to produce current
The coil of wire moves moves over the magnet to produce current
The magnet and coil just need to be near each other to produce current.
This flashlight will never produce current.
For a generator to work, what can happen to produce current?
A magnet moves through a coil of wire
A coil of wire moves around the magnet
The magnet or coil of wire has to move around the other.
A generator will never produce current.
What would happen if you cranked this generator faster?
More current is produced.
Less current is produced.
The same amount of current is produced.
A stronger magnetic field is produced.
A weaker magnetic field is produced.
