Question

A teacher places a metal can on top of an insulating foam cup and touches the side of the foam cup with a negatively charged rod. The setup is shown in the picture below.



What will happen to the negatively charged electrons when the rod touches the metal can?

(1 point)
Responses

The electrons will transfer to the can because it is an insulator.
The electrons will transfer to the can because it is an insulator.

The electrons will transfer to the foam cup because it is a conductor.
The electrons will transfer to the foam cup because it is a conductor.

The electrons will transfer to the foam cup because it is an insulator.
The electrons will transfer to the foam cup because it is an insulator.

The electrons will transfer to the can because it is the conductor.
The electrons will transfer to the can because it is the conductor.
Skip to navigation

Answer 1

The electrons will transfer to the can because it is the conductor.

Reason: In a conductor (the metal can) electrons are free to move, so negative charge flows onto and spreads over the can. The foam cup is an insulator and will not accept or conduct those electrons.