Question

Sally puts on wool socks and rubs her feet on a nylon carpet. How does static electricity build up in Sally?(1 point)
Responses

The friction causes electrons from the wool socks to move to Sally, giving Sally a negative charge.
The friction causes electrons from the wool socks to move to Sally, giving Sally a negative charge.

Electrons from the wool socks move into the carpet, giving Sally and her socks a positive charge.
Electrons from the wool socks move into the carpet, giving Sally and her socks a positive charge.

When electrons from the wool socks move into the carpet, Sally and her socks gain a negative charge.
When electrons from the wool socks move into the carpet, Sally and her socks gain a negative charge.

Electrons from the carpet move into the wood socks, giving Sally and her socks a positive charge.
Electrons from the carpet move into the wood socks, giving Sally and her socks a positive charge.

Answer 1

Electrons move from the wool socks into the nylon carpet, leaving Sally and her socks with a net positive charge. Friction transfers electrons to the carpet (nylon tends to gain electrons), so the socks/body become positively charged.