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. What will happen to the negatively charged electrons when the rod touches the foam cups? (1 point)
The electrons will transfer to the foam cup and will remain in a concentrated, positively charged area on the cup where the rod was placed.
The electrons will transfer to the foam cup and will remain in a concentrated, negatively charged area on the cup where the rod was placed.
The electrons will transfer from the foam cup to the metal can, causing both cup and can to have a positive charge.
The electrons will transfer from the foam cup to the metal can, causing both cup and can to have a negative charge.
The electrons will transfer from the foam cup to the metal can, causing both the cup and can to have a negative charge.
Calvin touches a negatively charged rod to a neutral metal sphere located on an insulated stand. What will happen to the electrons when the negatively charged rod touches the metal sphere?
Electrons will move from the sphere to the rod.
electrons will move from the rod to the sphere and spread out.
electrons will move from the rod to the sphere but stay close together.
electrons will move from the sphere to the rod and stay close together.