Quiz about Electricity and Magnetism

Question 1

An object that can attract certain metals like iron.

Accepted Answer

Magnet

Answer

Repulsion

Answer

Compass

Question 2

The ends of a magnet where the force is strongest; called the north and south poles.

Accepted Answer

Magnetic pole

Answer

Magnetic field

Answer

Magnet

Question 3

A material (like iron) that is strongly attracted to magnets.

Accepted Answer

Ferromagnetic

Answer

Magnetic field

Answer

Lodestone

Question 4

A naturally magnetic rock that was one of the first magnets people discovered.

Accepted Answer

Lodestone

Answer

Temporary magnet

Answer

Magnet

Question 5

A magnet made by running electricity through a wire wrapped around iron.

Accepted Answer

Electromagnet

Answer

Motor

Answer

Generator

Question 6

A circuit where all parts are connected one after another.

Accepted Answer

Series circuit

Answer

Parallel circuit

Answer

Resistance

Question 7

A circuit where parts are connected in separate branches, so electricity has more than one path to follow.

Accepted Answer

Parallel circuit

Answer

Series circuit

Answer

Current

Question 8

One advantage to using this form of circuit is that...

Accepted Answer

voltage available to each light remains constant regardless of the number of lights that are on.

Answer

current drawn from the battery remains constant regardless of the number of lights that are on.

Answer

resistance along the circuit remains constant regardless of the number of lights that are on.

Answer

current drawn from the battery decreases as more lights are turned on.

Question 9

Sal connected four light bulbs in a parallel circuit. If Sal adds another light bulb, what is true about the current in each bulb?

Accepted Answer

The current in each bulb remained the same even though another bulb was added.

Answer

The current decreased when a fourth bulb was added.

Answer

The current in the four bulbs is much less than the current in three bulbs.

Answer

The current in the fourth bulb is less than the current in the other three bulbs.

Question 10

A strand of 10 lights is plugged into an outlet. How can you determine if the lights are connected in series or parallel?

Accepted Answer

Unscrew one light. If the other lights turn off, it's a series circuit.

Answer

Unscrew one light. If the other lights stay on, it's a series circuit.

Answer

Unplug the strand. If the first light stays on, it's a series circuit.

Answer

Cut the strand in half. If the plugged in half stays on, it's a series circuit.

Question 11

Look at the diagram. Emily needs to complete the circuit. What two points should be connected to complete the circuit and make the bulb glow?

Accepted Answer

Points 2 and 4

Answer

Points 2 and 3

Answer

Points 1 and 4

Answer

Points 1 and 3

Question 12

What happens in this circuit if one of the light bulbs is unscrewed?

Accepted Answer

The other bulb stays lit.

Answer

The other bulb goes out.

Answer

Current stops flowing in the circuit.

Answer

The current path in the circuit is broken.

Question 13

When the electricity goes off as a result of a blown fuse or a flipped breaker, a(n) ____________ has been created and the electrical current is stopped.

Accepted Answer

open circuit

Answer

dead battery

Answer

parallel circuit

Answer

a blockage in the circuit

Question 14

The south pole of a bar magnet will repel

Accepted Answer

the south pole of another bar magnet.

Answer

a paper clip.

Answer

iron filings.

Answer

the north pole of another bar magnet.

Question 15

Which property of magnets is being shown in the picture?

Accepted Answer

Like poles repel and opposite poles attract.

Answer

Like poles and opposite poles repel.

Answer

Like poles and opposite poles attract.

Answer

Like poles attract and opposite poles repel.

Question 16

How is an electromagnet different from a bar magnet?

Accepted Answer

An electromagnet is temporary and is magnetic when a current flows through a wire wrapped around the core.

Answer

Only a bar magnet has a magnetic field.

Answer

Only an electromagnet attracts materials made of iron.

Answer

A bar magnet is a temporary and is only magnetic when a

current flows through a wire wrapped around the core.

Question 17

Lisa exposes an iron paper clip to a very strong magnet. She is now able to pick up other paper clips using her newly magnetized clip. What happens within the paper clip in order for it to become magnetized?

Accepted Answer

The strong magnet aligns the magnetic domains within the paper clip.

Answer

The magnet randomizes the domains within the paper clip.

Answer

Part of the strong magnet "rubs" off and joins to the paper clip.

Answer

The strong magnet creates an electric force field around the paper clip.

Question 18

Describe what would happen to the arrows if this magnet were picked up and dropped numerous times.

Accepted Answer

the arrows would point in a variety of directions

Answer

nothing

Answer

the arrows would be removed

Answer

the arrows would point in the opposite direction

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