Static Electricity Summary

Static Electricity primarily involves​ (a)   materials. The main force which causes ​ (b)   to build up on a material is ​ (c)   , caused by rubbing/separating two objects.

• insulating
• charge
• friction
• conducting
• magnetic
• drag
• voltage
• current
• tension
• particles

Which particle is transferred between objects when a static charge builds up?

• electrons

• protons

• neutrons

• ions

Why do protons not transfer when static charge is built up?

• They are strongly bound in the nucleus of an atom.

• Their mass is too large.

• They have the incorrect charge

• They do not have charge.

If a positively charged rod is placed near small pieces of paper, the paper is ​ (a)   the rod, despite not being charged.

This is because the ​ (b)   in the paper are ​ (c)   the rod, but do not transfer over. This creates an area of ​ (d)   charge on the side of the paper closest to the rod, leaving the other side with a ​ (e)   charge.

• attracted to
• repelled by
• electrons
• negative
• positive
• protons
• neutral

For the paper to lift up towards the rod, the force of ​ (a)   must be larger than the force of ​ (b)   and the paper's ​ (c)   combined.

• attraction
• repulsion
• gravity
• weight
• electrons
• protons

Thinking about materials, why do we get an electric shock if we touch a metal object when we are negatively electrostatically charged ?

• Metal is a conductor, so the electrons from the metal will flow into our body to make us neutral.

• Metal is a conductor, so the electrons from our body will transfer to the metal to make us neutral.

• Metals are conductors so will transfer protons into our body to make us neutral.

• Metals are conductors, so the protons from our body will transfer to the metal to make us neutral.

Static Electricity is used to Spray Paint cars and other objects. The nozzle strips the paint particles of some their electrons. Why might this be useful?

• The paint particles are positively charged, so will repel each other. This creates an even coat of paint on the car.

• The paint particles are positively charged, so attract easier to the car to stick to it.

• The paint particles are negatively charged, so will repel each other. This creates an even coat of paint on the car.

• The paint particles attract together which creates a concentrated, thick coat of paint.