When you charge by induction, you bring an object with a charge (let's call it Object A) near to an object without a charge (Object B) and you try to charge Object B.
- Does Object A have to touch Object B to give it a charge?
- Can you charge Object B just by bringing Object A close to it, or do you need to add an extra step? What is the extra step?
- Will Object B's final charge be opposite Object A's initial charge, or the same as Object A's initial charge?
Food for thought for after the videos:
- Is the speaker's electroscope the same as our electroscopes from class? How is it different? Do you think one works better than the other?
- Why isn't attraction between objects a fool-proof way to determine an object's charge?
Discrepant Event Videos:
Working on our cluster 0 skills (predicting, observing, drawing conclusions)
Pause at 0:57
- What do you think will happen now that there is a smaller bubble inside of the big bubble?
- Will they move together? Separately? Will they move at all? Explain your reasoning.
-> The speaker mentions that this effect is the same as when an airplane is struck by lightning. The outside bubble (or the shell of the plane) acts as a Faraday Cage.
An Example of a Faraday Cage:
- What did you see happening?
- Why was Adam safe inside the cage?