Circuits

What does lightning have in common with the shock you receive when you touch a doorknob?

• They both involve protons being pulled away from atoms.
• They are both forms of static electricity.
• They are both forms of current electricity.
• Neither have anything to do with electricity.

What causes lightning?

• A similarity in electrical charge.
• Electrons flowing through a conductor.
• A difference in electrical charge.
• Raindrops conducting electricity from the clouds to the ground. 

A flow of electrons through a conductor is called:

• A river
• A spark
• An electron flow
• A current

In most electrical circuits, the pathway is made of:

• Wood
• Plastic
• Metal
• Static

What are the three components of a circuit?

• Pathway, Source, and Battery.
• Energy source, Conductor, and Receiver.
• Battery, Bulb, and Plastic.
• Wire, Electron, and Charge.

What is a common energy source for a circuit?

• Light bulb
• Battery
• Wire
• Switch

In the following diagram, the lightbulb is:

• Pathway
• Energy source
• The conductor
• The energy reciever

What are the two poles of a magnet called?

• North and South
• East and West
• Up and Down
• Red and Blue

What does a magnetic field look like?

• A series of white dotted lines
• It is invisible
• A clear piece of plastic or glass
• A shimmering area in the air.

Which of the following metals can be magnetized?

• Iron
• Copper
• Lead
• Silver