John Travoltage PHET Lab

Front

What is the charge of a metal doorknob if it attracts negatively charged electrons?

Back

The electrical charge of the doorknob must be positive in order to attract the negatively charged electrons.

Front

What happens to the flow of electrons when John's hand is near the doorknob and he rubs his foot on the carpet?

Back

I observe the electrons flowing through his body and then into the doorknob.

Front

What do you observe when John's hand is near his nose and he rubs his foot on the carpet?

Back

I observe negative electrons moving into his body.

Front

What type of electrical energy do the electrons stored in John's body represent?

Back

Potential.

Front

What happens to the electrons when John's hand is moved to the doorknob after rubbing his foot on the carpet?

Back

The electrons flowed from his body into the doorknob.

Front

Define 'electron'.

Back

An electron is a subatomic particle with a negative electric charge.

Front

What is static electricity?

Back

Static electricity is the buildup of electric charge on the surface of objects.

Front

Explain the concept of charge attraction.

Back

Opposite charges attract each other, while like charges repel.

Front

What is the role of friction in generating static electricity?

Back

Friction can transfer electrons from one object to another, creating static charge.

Front

What is the difference between potential and kinetic energy?

Back

Potential energy is stored energy, while kinetic energy is the energy of motion.