Question

1. a balloon that has been charged can hover over your head without actually touching it and cause your hair to stand up. what type of electron transfer makes the hair standing up possible?

friction
induction
electric fields
conduction

Explanation:

• Friction: This is the process of transferring electrons by rubbing two objects together. In this case, the balloon is already charged, so friction is not the relevant electron - transfer mechanism here.
• Induction: Charging by induction occurs when a charged object causes a redistribution of charges in a nearby uncharged object without direct contact. The charged balloon induces a separation of charges in the hair (like charges repel). This causes the hair to stand up as each strand repels the others due to the induced like charges.
• Electric fields: While electric fields are involved in the interaction (as they are responsible for the force between charged objects), electric fields are not a type of electron - transfer mechanism.
• Conduction: Charging by conduction requires direct contact between a charged object and an uncharged object to transfer electrons. Since the balloon is not touching the hair, conduction is not the correct mechanism.

Answer:

induction