Electricity and Magnetism Review

Two bulbs are connected to a battery in a series circuit. Both bulbs are lit. A few minutes later, one of the bulbs burns out. What will happen to the other bulb?

• The other bulb will no longer be lit because the circuit will be incomplete.
• The other bulb will glow more brightly because the amount of electricity it receives will increase
• The other bulb will remain lit at the same brightness.

What will create static electricity?

• rubbing a plastic comb on a piece of wool
• flipping on a light switch in your classroom
• flipping on a light switch in your classroom

The diagram below is a of a circuit.
What kind of circuit is this?

• series
• parallel
• open

Look at the diagram below. Will this circuit allow electricity to flow?

• No, the battery in the circuit is not charged
• Yes, the light bulb will get energy from the battery
  No, electrical currents need a complete loop of wires in order for electricity to flow

What can cause electrons to jump across a gap and cause a spark?

• allowing a battery to run out of charge
• an imbalance of charges between surfaces
• rubbing two coins together

Select the TRUE statement.

• Bar magnets have south and north poles
• Electromagnets are considered "permanent magnets"
• Electromagnets use non-conductive wire and electricity to create a magnetic field

In an electromagnet, electric energy is converted to ........................energy.

• gravitational
• magnetic
• light

Ivan wants to build an electromagnet. What three materials will Ivan need?

• a compass, a battery, wires
• a batter, wires, a solenoid wrapper around an iron core
• a battery, wires, and a light builb

Electromagnets are used to make many different objects that you use everyday. For example, many doorbells use an electromagnet to ring. 
What other electrical device uses electromagnetism?

• a light bulb
• a watch
• a refrigerator
• an electric motor

Which set of magnets correctly shows us that like poles repel?

• A
• B
• C
• D