Quiz about Fundamentals of Electric Charge and Electric Fields

Question 1

Which of the following is a conductor?

Accepted Answer

penny

Answer

sheet of paper

Answer

t-shirt

Answer

plastic bottle

Question 2

Which of the following is the best insulator?

Accepted Answer

wood log

Answer

metal paper clip

Answer

bowl of water

Answer

penny

Question 3

In static electricity, similar charges

Accepted Answer

repel

Answer

attract.

Answer

behave like N & S poles

Answer

remain neutral

Question 4

To build a basic circuit, you need wires, a light bulb, and

Accepted Answer

a battery

Answer

an insulator

Answer

another light bulb

Answer

a rubber band

Question 5

Which of the following demonstrates static electricity?

Accepted Answer

After tumbling with other clothes in a warm dryer, your sock sticks to your shirt.

Answer

Putting your fingers near an electrical outlet could result in a painful shock.

Answer

You bend a paperclip back and forth until it breaks. The broken end feels hot.

Answer

You use a charger to charge your cell phone battery.

Question 6

Which of the pairs of balloons will repel each other?

Accepted Answer

Set A and set D

Answer

Set A

Answer

Set B

Answer

Set B and Set C

Question 7

What will happen when you remove a bulb from the circuit pictured?

Accepted Answer

The other bulb will turn off.

Answer

The other bulb will become brighter.

Answer

The other bulb will become dimmer.

Answer

It will remain a closed circuit.

Question 8

In the drawing of the electromagnet, A is the

Accepted Answer

metal nail

Answer

battery

Answer

wires

Answer

negative charges

Question 9

In the drawing of the electromagnet, letter B is the

Accepted Answer

wires

Answer

metal nail

Answer

negative charges

Answer

battery

Question 10

Which type of magnet can be turned off?

Accepted Answer

electromagnet

Answer

bar magnet

Answer

horseshoe magnet

Answer

iron filings

Question 11

Which type of magnet is permanent?

Accepted Answer

bar magnet

Answer

electromagnet

Question 12

What happens to the flow of electric current in an open circuit?

Accepted Answer

The electric current cannot flow.

Answer

The electric current continues to flow.

Answer

The electric current jumps to another object.

Answer

The lights get brighter.

Question 13

In a basic circuit, what is considered to be the load?

Accepted Answer

bulb

Answer

battery

Answer

wires

Answer

switch

Question 14

In a basic circuit, what is considered to be the power source?

Accepted Answer

battery

Answer

wires

Answer

switch

Answer

bulb

Question 15

If an object gains electrons, what charge will the object have?

Accepted Answer

negative

Answer

positive

Answer

neutral

Answer

no charge

Question 16

A particle that carries a negative electric charge is called a(n) ______.

Accepted Answer

electron

Answer

neutron

Answer

atom

Answer

proton

Question 17

When you charge an electroscope by touching it with a charged balloon, the process is called _____.

Accepted Answer

conduction

Answer

friction

Answer

induction

Answer

grounding

Question 18

A neutral object becomes negatively charged when it loses electrons.

Accepted Answer

false

Answer

true

Question 19

Conduction is the process of charging an object without touching it.

Accepted Answer

false

Answer

true

Question 20

What do the lines around this magnet represent?

Accepted Answer

Magnetic Field

Answer

North Pole

Answer

South Pole

Answer

Magnetic Declination

Question 21

As the distance between two magnets increases (they get farther apart), the force between them:

Accepted Answer

Decreases

Answer

Increases

Answer

Stays the Same

Question 22

If you cut a magnet in half, what happens to the poles?

Accepted Answer

Both halves get a North pole and a South Pole

Answer

One half gets the North Pole, the other half gets the South Pole

Answer

Both halves get only a North Pole

Answer

Both halves get only a South Pole

Question 23

What is responsible for the Magnetic Field around Earth?

Accepted Answer

The Earth's molton iron core

Answer

The Earth's crust

Answer

The Earth's mantel

Answer

The Sun

Question 24

An electromagnet's poles may be reversed by:

Accepted Answer

changing the direction of current flow

Answer

decreasing the voltage of the coil

Answer

increasing the number of coils

Answer

altering the material used to make the coils

Question 25

In un-magnetized materials the domains are __________ aligned.

Accepted Answer

randomly

Answer

super

Answer

slightly

Answer

always

Question 26

What kind of magnet can be turned on and off?

Accepted Answer

electromagnet

Answer

refridgerator magnet

Answer

magnetite

Answer

iron

Question 27

If a glass plate is placed over a magnet and iron filings are sprinkled over the glass, a pattern will be visible. What does this pattern indicate?

Accepted Answer

The magnetic field

Answer

The electrostatic field

Answer

The piezoelectric effect

Answer

The chemical reaction of the magnet and the filings

Question 28

What is most likely to happen when the switch is closed?

Accepted Answer

A magnetic field should be produced

Answer

The nail will rust

Answer

The battery will explode

Answer

The wire will catch on fire

Question 29

How do electromagnets differ from regular magnets?

Accepted Answer

D. All of the above

Answer

A. They  can be turned off and on

Answer

B. Their polarity can be reversed

Answer

C. Their strength can be changed

Question 30

This is a picture of a simple electromagnet. How can the electromagnet be made stronger?

Accepted Answer

Add more coils of wire to the nail.

Answer

Use a smaller battery.

Answer

Reverse the poles of the magnet.

Answer

Remove all the coils and the nail.

Question 31

Magnets on refrigerator cannot be turned off. Which type of magnets they belong?

Accepted Answer

permanent magnets

Answer

electromagnets

Answer

battery

Answer

copper wire

Question 32

What are the components of the electromagnets?

Accepted Answer

battery, copper wire and iron nail

Answer

battery, wire and bulb

Answer

battery , copper wire and plastic bottle

Answer

battery, wire and aluminum

Question 33

What would happen if you took one end of the wire off the battery?

Accepted Answer

The nail would no longer be a magnet

Answer

The nail will be a magnet.

Answer

Nothing will happened.

Answer

The nail will heats up.

Question 34

How can the strength of an electromagnet be increased? (mark all that apply)

Accepted Answer

increase the current flowing through the coil

Accepted Answer

increase the number of coils

Accepted Answer

put iron core inside the coil

Answer

add an amplifier to it

Question 35

Which electromagnet is stronger?

Accepted Answer

B

Answer

A

Question 36

Which electromagnet is stronger?

Accepted Answer

B

Answer

A

Question 37

How do objects become positively charged?

Accepted Answer

They lose electrons

Answer

They gain electrons

Answer

Rubbing or Friction

Question 38

How do objects become negatively charged?

Accepted Answer

They gain electrons

Answer

They lose electrons

Answer

Rubbing or Friction

Question 39

This is a measure of electrical pressure

Accepted Answer

Volt

Answer

Current

Answer

Ohm

Answer

Ampere

Question 40

This is the measure of the movement of the electric charge

Accepted Answer

Ampere

Answer

Voltage

Answer

Volt

Answer

Ohm

Question 41

This is a measure of electrical resistance

Accepted Answer

Ohms

Answer

Current

Answer

Volt

Answer

Ampere

Question 42

Force resulting from interaction between electrically charged particles

Accepted Answer

Electromagnetic Force

Answer

Magnetic Force

Answer

Electric Force

Answer

Current

Question 43

The size or quantity of something

Accepted Answer

Magnitude

Answer

Magnetic Force

Answer

Electromagnetic Force

Answer

Current

Question 44

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

Accepted Answer

Decrease

Answer

Stay the Same

Answer

Increase

Question 45

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 46

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 47

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 48

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 49

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 50

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 51

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 52

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 53

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 54

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 55

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 56

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 57

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.

Fundamentals of Electric Charge and Electric Fields

57 questions

Which of the following is a conductor?

Which of the following is the best insulator?

In static electricity, similar charges

To build a basic circuit, you need wires, a light bulb, and

Which of the following demonstrates static electricity?

Which of the pairs of balloons will repel each other?

What will happen when you remove a bulb from the circuit pictured?

In the drawing of the electromagnet, A is the

In the drawing of the electromagnet, letter B is the

Which type of magnet can be turned off?

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