Science 10 (Second Quarter

The charge of an electron is:

• Positive. 
• Negative. 
• Electrons have no charge

An atom loses an electron.  What type of charge does it have now?

• Positive
• Negative

An atom gains an electron.  What type of charge does it have now?

• Positive
• Negative
• No charge

Which of the following is not a good conductor of electricity?

• Copper
• Silver
• Glass
• Aluminum

Which of the following is not a good insulator?

• Copper
• Glass
• Rubber
• Wool

This is a magnet made by an electric current

• temporary
• permanent
• electromagnet
• ferromagnet

A compass needle responds to a magnetic field, because the compass needle is a

• transformer
• generator
• motor
• magnet

If you wrap more coils around an electromagnet, it will become...

• brighter
• stronger
• weaker
• invisible

This is an example of magnets... 

• attracting to each other.
• repelling each other.

The strongest part of a magnet is...

• the bars.
• the force field.
• the poles. 
• the middle.