Electrostatic Induction

Mr. Andersen explains electrostatic induction, using examples like static electricity and an electroscope. He discusses how charges can be transferred through friction, conduction, and induction, and the differences between insulators and conductors. The video also covers polarization and how charge distribution changes in different materials.

What happens to a child's hair when they slide down a slide due to electrostatic induction?

• The hair loses all charges.

• The hair remains neutral.

• The hair becomes positively charged.

• The hair becomes negatively charged.

How can an object be charged through friction?

• By touching it with another charged object.

• By rubbing it against another object.

• By placing it in a magnetic field.

• By heating it.

What is the main difference between a conductor and an insulator regarding electron movement?

• Neither conductors nor insulators allow electron movement.

• Both conductors and insulators have mobile electrons.

• Electrons in insulators are fixed, while in conductors they are mobile.

• Electrons in conductors are fixed, while in insulators they are mobile.

What occurs during polarization of a neutral object?

• Protons move within the object.

• Electrons are added to the object.

• Electrons are removed from the object.

• Electrons within the object rearrange without adding or removing charges.

What happens to the metal leaves of an electroscope when a charged rod is brought near?

• The leaves move apart.

• The leaves change color.

• The leaves move closer together.

• The leaves remain stationary.

How does conduction differ from induction in terms of charge transfer?

• Conduction involves no physical contact, while induction does.

• Induction involves physical contact, while conduction does not.

• Conduction involves physical contact, while induction does not.

• Both conduction and induction involve physical contact.

What is the result of touching an electroscope with a negatively charged rod?

• The electroscope loses all charges.

• The electroscope remains neutral.

• The electroscope becomes negatively charged.

• The electroscope becomes positively charged.