Which of these observations provides evidence that Sam’s plastic comb has picked up a negative charge when it was rubbed against a wool sweater? Select two answers.
Responses
The plastic comb makes hair on top of Sam's head stand up when it is brought close to him.
The plastic comb makes hair on top of Sam's head stand up when it is brought close to him.
The plastic comb increased in temperature.
The plastic comb increased in temperature.
The plastic comb increases in mass.
The plastic comb increases in mass.
The plastic comb can pick up small pieces of shredded paper when it is placed close to them.
The plastic comb can pick up small pieces of shredded paper when it is placed close to them.
The plastic comb can conduct electricity.
The plastic comb makes hair on top of Sam's head stand up when it is brought close to him.
The plastic comb can pick up small pieces of shredded paper when it is placed close to them.