Electricity and magnetism

Which of the following objects do you think would be attracted to a magnet?

• a gold ring

• an iron nail

• a steel pin

• a silver spoon

• an alumninium pan

Choose the electrical insulators

• tree

• cooper

• glass

• plastic

Choose the electrical conductors

• Porcelain

• Water

• Wood

• Silver

• Rubber

Neutrons have positive charge

• True

• False

The switch in a circuit...

• Provides energy

• Conduct electricity

• Opens and closes the circuit

All magnets ...

• Have two poles, positive and negative.

• Have two poles, north and south.

• Have a resistor.

• Haven't any pole.

Choose the types of magnets

• Permanent

• Motor

• Magnetic field

• Artificial

• Induced

The area arround a magnet is

• An electron

• A Magnetic field

• A magnetic pole

• A resistor

A form of electricity that doesn't flow is

• A current electricity

• A electrical charge

• A static electricity

If two objects are negatively charged, they attract each other.

• True

• False