Quiz about Electricity and Magnetism

Question 1

How do objects become positively charged?

Accepted Answer

They lose electrons

Answer

They gain electrons

Answer

Rubbing or Friction

Question 2

How do objects become negatively charged?

Accepted Answer

They gain electrons

Answer

They lose electrons

Answer

Rubbing or Friction

Question 3

This is a measure of electrical pressure

Accepted Answer

Volt

Answer

Current

Answer

Ohm

Answer

Ampere

Question 4

This is the measure of the movement of the electric charge

Accepted Answer

Ampere

Answer

Voltage

Answer

Volt

Answer

Ohm

Question 5

This is a measure of electrical resistance

Accepted Answer

Ohms

Answer

Current

Answer

Volt

Answer

Ampere

Question 6

Force resulting from interaction between electrically charged particles

Accepted Answer

Electromagnetic Force

Answer

Magnetic Force

Answer

Electric Force

Answer

Current

Question 7

The size or quantity of something

Accepted Answer

Magnitude

Answer

Magnetic Force

Answer

Electromagnetic Force

Answer

Current

Question 8

As the distance between magnets increases-the attraction between them will

Accepted Answer

Decrease

Answer

Stay the Same

Answer

Increase

Question 9

How can the strength of an electromagnet increase?

Accepted Answer

Add more loops (coils) of wire around the iron nail

Answer

Remove the battery

Answer

Remove loops (coils) of wire from around the iron nail

Answer

Remove the iron nail, leaving only the coils of wire

Question 10

What is magnetic force?

Accepted Answer

Attraction or repulsion that arises between electrically charged particles because of their motion

Answer

How strong a magnet is

Answer

Force resulting from interaction between electrically charged particles

Answer

The size or quantity of something

Question 11

Students attached both ends of a long wire to the poles of a battery and wrapped the wire around a spoon. In this arrangement, the spoon is able to pick up five paper clips. The students wrap more wire around the spoon and want to determine if the strength of the magnetic force has increased. Which of the following observations would indicate that wrapping more wire has increased the strength of the electromagnet?

Accepted Answer

The spoon now picks up seven paper clips.

Answer

More wire was needed to wrap around the spoon.

Answer

Eventually, the battery runs out of energy.

Answer

The ends of the wire must touch the battery's poles.

Question 12

Students want to investigate how the amount of electric energy delivered to a motor affects its speed. Which of the following procedures will most likely produce the data students need to answer their question?

Accepted Answer

Measure the rotations per second of a motor when it is connected to one battery, two batteries, and three batteries.

Answer

Add larger and larger motors to a battery to determine the size of the largest motor the battery is able to run

Answer

Closely observe the rotation of the motor to see if the direction of spin reverses when the poles of the battery are switched

Answer

Connect a series of motors to the same battery to figure out how many motors can be run off the same battery.

Question 13

The table provided shows data collected by students during an investigation of two electromagnets. Which of the following conclusions is supported by data on the table?

Accepted Answer

The greater the charges of two electromagnets, the greater the size of the force.

Answer

When two electromagnets are of like charges, they attract each other.

Answer

Electromagnets that repel each other have more force than those that attract each other.

Answer

If the charge on one magnet is positive, the charge on the other must be negative.

Question 14

The illustration shows a hand generator. Turning the handle of the generator spins a magnet and creates an electric current that lights the bulb. Which of the following observations can be used to indicate the strength of the current created by the generator?

Accepted Answer

The brightness of the bulb

Answer

The size of the magnet

Answer

The length of the handle

Answer

The mass of the generator

Question 15

This table shows the magnitude of electromagnetic force exerted by two electromagnets on each other as the distance between the two electromagnets is varied. The data on the table provide evidence for which of the following conclusions?

Accepted Answer

The smaller the distance between two electromagnets, the greater the force.

Answer

The force between any two magnets is always constant, regardless of distance.

Answer

As distance between electromagnets increases, the electromagnetic force also increases.

Answer

The force between two magnets depends only on the charge of the electromagnets.

Question 16

What is a current?

Accepted Answer

A directional flow of electrical charge through an object or medium

Answer

Attraction or repulsion that arises between electrically charged particles because of their motion

Answer

The size or quantity of something

Answer

Attractive or repulsive interactions between any two charged objects

Question 17

What will happen as an electron (-) gets closer to a proton (+)?

Accepted Answer

The attraction will be stronger.

Answer

The repulsion will be stronger.

Answer

The attraction will be weaker.

Answer

Nothing will happen to the electric field.

Question 18

A current flowing through a wire is surrounded by a

Accepted Answer

Magnetic Field

Answer

Electric Current

Answer

Electric Field

Answer

None of these

Question 19

What is an electric force?

Accepted Answer

Attractive or repulsive interactions between any two charged objects

Answer

The size or quantity of something

Answer

A directional flow of electrical charge through an object or medium

Answer

How strong a magnet is

Question 20

What is magnetic strength?

Accepted Answer

How strong a magnet is

Answer

Attractive or repulsive interactions between any two charged objects

Answer

Force resulting from interaction between electrically charged particles

Answer

Attraction or repulsion that arises between electrically charged particles because of their motion

Question 21

What will happen if the north ends of two magnets are placed near each other?

Accepted Answer

They will repulse (repel) each other.

Answer

Both magnets will get weaker.

Answer

They will attract each other.

Answer

Nothing will happen.

Electricity and Magnetism

21 questions

How do objects become positively charged?

How do objects become negatively charged?

This is a measure of electrical pressure

This is the measure of the movement of the electric charge

This is a measure of electrical resistance

Force resulting from interaction between electrically charged particles

The size or quantity of something

As the distance between magnets increases-the attraction between them will

How can the strength of an electromagnet increase?

What is magnetic force?

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