Electrostatics Quizizz

When a glass rod is rubbed with silk, the rod becomes positively charged because ...

• the proton is transferred from silk to glass rod

• the electron is transferred from silk to glass rod

• the proton is transferred from glass rod to silk

• the electron is transferred from glass rod to silk

Materials that allow charges to pass through easily are ....

• insulators

• electrodes

• conductors

• inductors

If you build up a positive charge on your body and touch a metal doorknob you may receive a "shock". What really happened?

• Electrons flowed from you to the doorknob.

• Electrons flowed from the doorknob to you.

• Protons flowed from you to the doorknob.

• Electrons from the air around you cancelled out the positive charge.

A metal sphere (A) with a negative charge of -4.0 C, touches an identical (uncharged) metal sphere (B). What are the charges of the two spheres after the contact?

• A--> 0 C

  B--> -4.0 C

• A--> +4.0 C

  B--> -4.0 C

• A--> -2.0C

  B--> -2.0 C

• A--> -4.0 C

  B--> 0 C

  (The charges won't change)

According to the electrostatic series shown, what will happen to a glass rod that is rubbed on a cotton shirt?

• The glass rod will receive a positive charge,

• The glass rod will receive a negative charge.

• The glass rod will not become charged.

• Both the glass rod and the cotton shirt will end up with the same charge.

What is the best description of an electrical insulator?

• A material which does not allow the flow of electrons.

• Any non-metal.

• A material which allows for the flow of electrons.

• Only things made of rubber that is at least 4.0 mm thick.

A neutral pith ball is approached by a negatively charged rod. What will happen to the pith-ball?

• It will be repelled by the rod.

• It will be attracted to the rod.

• It will move up.

• It will not move.

According to the electrostatic series shown, what will happen if nylon is rubbed against wool?

• The wool will get a strong positive charge.

• The wool will get a strong negative charge.

• Neither material is likely to be charged because they are quite close on the electrostatic series.

• Both the materials will receive a positive charge.

A positively charged glass rod hangs from a silk thread.

What will happen when a negatively charged ebonite rod is brought close.

• The glass rod will be repelled.

• The glass rod will be attracted.

• The glass rod will shatter.

• The glass rod will not move at all.

A positively charged rod is brought close to a metal conducting sphere. What will happen to the particles in the metal sphere?

• The electrons will move away to the far side of the sphere.

• The electrons will move towards the rod along the right side of the sphere.

• The metal sphere will gain a permanent positive charge.

• The metal sphere will gain a permanent negative charge.