Electricity and Magnetism Lesson

Multiple Choice

How can it be explained that someone's hair can stick to a balloon?

• There is static electricity

• There is too much dust in the air

• A parallel circuit was too long

• The person needs to wash his hair

Multiple Choice

The flow of electricity in a circuit-

• current
• flow
• circuit

Multiple Choice

What is the major difference between static electricity and current electricity?

• Current electricity involves a continuous flow of neutrons; static electricity is a sudden transfer of protons
• Current electricity can be deadly; static electricity is almost always safe
• In current electricity, there's a single transfer of electrons; in static electricity, there's a steady flow of electrons
• Current electricity involves a flow of electrons; static electricity involves a single transfer of electrons

Multiple Choice

Electricity that flows in a closed path is called a

• path
• current
• circuit

Multiple Choice

What is a complete path through which electric charges can flow called?

• magnetic pole
• electric circuit 
• electric resistance
• magnetic field 

Multiple Choice

Which of these materials is a good conductor of electricity?

• Rubber

• Metal

• Newspaper

• Glass

Multiple Select

Which of the following items would conduct electricity?

• Aluminum ladder

• Metal screwdriver

• Wooden baseball bat

• Rubber flip flops

Multiple Choice

Two batteries in a circuit make the lights in the circuit brighter than one battery.

• true
• false

Multiple Choice

If the lights are on, the circuit is

• closed
• open

Multiple Choice

If a light bulb is added to a circuit and it turns on, what can we say about this circuit?

• open
• incomplete
• unbroken 
• off

Multiple Choice

Two types of circuits are

• parallel and magnetic
• electromagnetic and series
• series and parallel

Multiple Choice

What do you make if you wrap a current-carrying wire around an iron bolt?

• electromagnet
• electric motor
• generator

Multiple Choice

What is a wire in a circuit wrapped around an iron core called?

• electromagnet
• generator
• electric motor

Multiple Choice

Why do electricians always wrap wires in plastic?

• Plastic comes in many different colors

• Plastic is a good electrical conductor

• Plastic makes the wires easy to bend

• Plastic is a good electrical insulator

Multiple Choice

Unlike poles of a magnet do what?

• repel
• attract
• nothing 

Multiple Choice

Like poles of a magnet do what?

• repel
• attract 
• nothing 

Multiple Choice

What device changes mechanical kinetic energy into electrical energy?

• electric motor

• insulator

• electromagnet

• generator

Multiple Choice

What device makes a fan plugged into the wall spin?

• generator
• battery
• electromagnet
• electric motor

Multiple Choice

What energy transformation takes place in a battery powered fan that is spinning?

• kinetic to chemical to electrical
• chemical to kinetic
• chemical to electrical to kinetic
• electrical to kinetic to chemical