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Question

Questions are based on the Faraday PHET Lab:

Repeat the experiments above but this time move the magnet quickly. What do you see?

Question 1 options:

the faster the magnet is moved, the brighter the light gets

the faster the magnet is moved, the dimmer the light gets

there is no change when the magnet is moved faster

Question 2 (3 points)

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Questions are based on the Faraday PHET Lab:

Does the speed at which you move the magnet inside of the coils have any effect on voltage?

Question 2 options:

yes, the light gets dimmer

no, there is no effect

yes, the light gets brighter

Question 3 (3 points)

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Questions are based on the Faraday PHET Lab:

Next, move the magnet through the four loop coil of wire (the coil near the bottom). Move the magnet slowly again. Do you notice any differences in voltage?

Question 3 options:

there is no difference; the light doesn't turn on

the light is dimmer than the two loop coils

the light is brighter than the two loop coils

the light turns dim and stays dim

Question 4 (3 points)

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Questions are based on the Faraday PHET Lab:

Flip the magnet by clicking on the N/S bar in the bottom right and repeat the procedures above with the two and four loop coils, do you notice any differences?

Question 4 options:

there is no difference when the magnet is flipped

when south pole goes in the coil it's brighter than when the north pole

when north pole goes in the coil it's brighter than when the south pole

Question 5 (3 points)

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Questions are based on the Faraday PHET Lab:

First, slowly move the magnet into the two loop coil of wire (the coil near the top). Watch what happens to the voltage when the magnetic field lines that are closer together (at the North and South Poles) move through the wire, compared to when the middle of the magnet moves through the coil?

Question 5 options:

the light doesn't turn on

the light gets bright then dim then bright again

the light turns dim and stays dim

the light turns bright the whole time

Answer 1

Here are the likely answers to the questions based on the principles of electromagnetism demonstrated in the Faraday PHET Lab:

Question 1:
When moving the magnet quickly, you likely observe that:

• the faster the magnet is moved, the brighter the light gets.
  This is because a faster movement induces a greater change in magnetic flux, generating more voltage and therefore more current, which translates to a brighter light.

Question 2:
The speed at which you move the magnet inside of the coils has a direct effect on voltage:

• yes, the light gets brighter.
  This aligns with Faraday's Law of Electromagnetic Induction, which states that the induced voltage is proportional to the rate of change of magnetic flux.

Question 3:
Moving the magnet through the four loop coil of wire slowly may show:

• the light is dimmer than the two loop coils.
  With more loops, the induced voltage for the same movement may vary, but moving the magnet slowly typically produces less voltage compared to faster movements.

Question 4:
Flipping the magnet and observing its effects may reveal:

• when north pole goes in the coil it's brighter than when the south pole.
  This is because the direction of the magnetic field lines can influence the induced current and voltage created in the coil.

Question 5:
When moving the magnet into the two loop coil of wire and comparing the different parts of the magnet, you might notice:

• the light gets bright then dim then bright again.
  This happens because as the stronger field lines at the poles enter and then exit the coil, the induced current fluctuates, causing the light to change brightness.

These answers reflect the basic principles of electromagnetic induction demonstrated through the use of magnets and coils in the PHET simulations.