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On a 3-pronged plug, 1 of the flat prongs carries current from the supply that enters the electrical outlet. The other returns the current to the service panel of the building. What would be a correct prediction for the purpose of the round prong?
a candle
They have the same charge.
electrical energy into motion energy and sound energy
Electrons in the metal move away from the rod.
They push one another apart.
It will cause the nail to chemically change.
electrical energy into motion energy and sound energy
It carries any extra current away, preventing a shock.
When an electric current runs through a doorbell buzzer, a mechanism inside vibrates back and forth and makes the doorbell work. Which energy transformation occurs when someone pushes the button on a doorbell?
a candle
They have the same charge.
electrical energy into motion energy and sound energy
Electrons in the metal move away from the rod.
They push one another apart.
It will cause the nail to chemically change.
electrical energy into motion energy and sound energy
It carries any extra current away, preventing a shock.
Balloons in Billy Bob Joe's investigation are rubbed with a wool cloth and placed next to each other. They move away from each other. What must be true of the balloons?
a candle
They have the same charge.
electrical energy into motion energy and sound energy
Electrons in the metal move away from the rod.
They push one another apart.
It will cause the nail to chemically change.
electrical energy into motion energy and sound energy
It carries any extra current away, preventing a shock.
When an electric current runs through a doorbell buzzer, a mechanism inside vibrates back and forth and makes the doorbell work. Which energy transformation occurs when someone pushes the button on a doorbell?
a candle
They have the same charge.
electrical energy into motion energy and sound energy
Electrons in the metal move away from the rod.
They push one another apart.
It will cause the nail to chemically change.
electrical energy into motion energy and sound energy
It carries any extra current away, preventing a shock.
Imagine you bring a negatively charged rod near a piece of metal. What happens within the metal?
a candle
They have the same charge.
electrical energy into motion energy and sound energy
Electrons in the metal move away from the rod.
They push one another apart.
It will cause the nail to chemically change.
electrical energy into motion energy and sound energy
It carries any extra current away, preventing a shock.
If you place a shiny, new nail outside in a wet location, how will the air and water change the nail?
a candle
They have the same charge.
electrical energy into motion energy and sound energy
Electrons in the metal move away from the rod.
They push one another apart.
It will cause the nail to chemically change.
electrical energy into motion energy and sound energy
It carries any extra current away, preventing a shock.
Which example is an example of light energy?
a candle
They have the same charge.
electrical energy into motion energy and sound energy
Electrons in the metal move away from the rod.
They push one another apart.
It will cause the nail to chemically change.
electrical energy into motion energy and sound energy
It carries any extra current away, preventing a shock.
When 2 balloons normally hang closely together, they do not touch. When they are rubbed with a wool cloth, what happens when the balloons are placed near one another?
a candle
They have the same charge.
electrical energy into motion energy and sound energy
Electrons in the metal move away from the rod.
They push one another apart.
It will cause the nail to chemically change.
electrical energy into motion energy and sound energy
It carries any extra current away, preventing a shock.
Check it!