Static Electricity and Its Effects on Everyday Objects

The video explores static electricity, starting with a demonstration of rubbing a balloon on hair to create static charge. It explains electron transfer, material properties, and the concept of static charge. The video compares electrostatic force with gravity, discusses polarization, and explains why static electricity is temporary. It concludes with a brief mention of sparks and lightning.

What happens to the atoms of the balloon and hair before rubbing?

• They are positively charged.

• They are neutral.

• They are polarized.

• They are negatively charged.

Why do electrons transfer from hair to the balloon during rubbing?

• Rubber has a lower tendency to gain electrons.

• Hair has a higher tendency to gain electrons.

• Rubber has a higher tendency to lose electrons.

• Hair has a higher tendency to lose electrons.

What is the term used for materials where charges do not move easily?

• Superconductors

• Semiconductors

• Insulators

• Conductors

How does a charged balloon lift hair against gravity?

• By having a stronger gravitational pull

• By being heavier than the hair

• By exerting a stronger electrostatic force

• By being larger in size

What device can be used to accumulate a large static charge?

• Capacitor

• Tesla coil

• Battery

• Van de Graaff generator

Why does a charged balloon attract neutral paper pieces?

• Because the paper becomes negatively charged

• Because the paper becomes positively charged

• Because the paper is heavier

• Because the paper becomes polarized

What happens to the atoms in the paper when they are polarized?

• The atoms break apart.

• The atoms gain electrons.

• The positive and negative charges separate slightly.

• The atoms become neutral.

Why doesn't static electricity last long?

• Because static electricity is a myth

• Because electrons are permanently gained

• Because electrons are eventually lost or gained back

• Because electrons are permanently lost

What is a spark in terms of static electricity?

• A permanent loss of electrons

• A mild discharge of static electricity

• A myth about static electricity

• A permanent gain of electrons

What natural phenomenon is an extreme form of static discharge?

• Wind

• Rain

• Thunder

• Lightning