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.
A B C OR D


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

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.

Answer 1

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

Explanation: touching the insulating foam deposits charge on the foam surface, and the charge cannot flow through the foam to the metal can (which would require a conductor).