Unit 2 Review

Rose made this model. In her model the bulb is not lit.
Which of these statements best explains why the bulb is not lit?

• The wires are connected to the wrong battery terminals.
• The bulb is burned out.
• The switch is open.
• A wire is missing.

Ellen tried each of these setups to make a working circuit.
In which setup would the bulb light? 

• Setup A
• Setup B
• Setup C
• Setup D

These three light bulbs are powered by the battery. 
 What will happen if the middle light burns out? 

• The two other bulbs will go out.
• The two other bulbs will stay on.
• Just the bulb closest to the battery will stay on.
• Just the bulb farthest from the battery will stay on.

Sam is building a circuit.
What does he need to complete the circuit? 

• bell
• switch
• energy source
• more wire

What kind of circuit is this?

• series
• parallel

What is a material that allows energy to pass through easily?

• parallel circuit
• rubber band
• conductor
• electron

Which is NOT a good conductor?

• silver
• copper
• iron
• plastic

What is a circuit with several paths for electricity to flow?

• conductor
• series circuit
• parallel circuit
• open circuit

What is a material that resists, or does NOT allow, energy to flow through?

• circuit
• insulator
• series
• conductor

What do magnets stick to?

• copper
• wood
• iron
• plastic