iGCSE Physics Electrical Charge

Which of the following statements about the proton is correct?

• It is positively charged.

• It has a neutral charge.

• It has a negative charge.

• It has lots of charges.

Which subatomic particles can be found in the nucleus?

• electrons and protons

• protons and neutrons

• neutrons and electrons

• protons, neutrons and electrons

A carbon atom has an atomic number of 6. How many electrons does the carbon atom have?

• 4

• 5

• 6

• 0

Complete this sentence: Ionisation is the process through which atoms

• lose/gain electrons to become charged.

• lose/gain protons to become charged.

• lose/gain neutrons to become charged.

• none of the above

Which particles are transferable between materials?

• protons

• neutrons

• electrons

• none of the above particles – they are all trapped in the nucleus

Which material is an example of an electrical insulator?

• copper

• steel

• plastic

• graphite

Complete the sentence: An electrical insulator is a material which

• allows electrons to flow through easily.

• has delocalised electrons.

• does not allow electrons to flow through easily.

• is used for wires in an electrical circuit.

How can an insulator be charged?

• by placing it into a circuit

• by rubbing it with a cloth

• by connecting it to the mains

• none of the above

A plastic rod can be given a negative charge by rubbing it with a cloth. Which of the following statements is correct?

• The protons move from the rod to the cloth.

• The protons move from the cloth to the rod.

• The electrons move from the cloth to the rod.

• The electrons move from the rod to the cloth.

If two free hanging rods with the same charge are brought together, what will happen?

• The rods will move away from one another.

• The rods will move towards one another.

• The rods will not move.

• The rods will discharge.