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

Answer 1

In this scenario, when the negatively charged rod touches the metal can, the following will happen:

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

This is the correct response because the metal can is a conductor and will allow the excess electrons from the negatively charged rod to flow into it. The foam cup being an insulator will not allow electron movement in the same manner. Thus, the negatively charged electrons from the rod will transfer to the metal can.