Quiz about Electromagnetism

Question 1

How do you make an electromagnet stronger?

Accepted Answer

add more wire coils and/or batteries

Answer

Add a motor and/or lightbulbs

Answer

Add more light bulbs and/or wire coils

Answer

add more wire coils and/or a switch

Question 2

When running a current through a wire, what do the blue lines represent?

Accepted Answer

A magnetic field that was created

Answer

The wire spinning

Answer

Electrons leaving

Answer

Electricity

Question 3

Which one represents the magnetic field lines of magnets repelling?

Accepted Answer

A

Answer

B

Question 4

Which one represents the magnetic field lines of magnets attracting?

Accepted Answer

B

Answer

A

Question 5

A _______________ is a current-carrying coil of wire with many loops.

Accepted Answer

solenoid

Answer

magnet

Answer

electromagnet

Answer

compass

Question 6

A _____________ transforms mechanical energy into electrical energy.

Accepted Answer

generator

Answer

electromagnet

Answer

circuit

Answer

magnetic field

Question 7

Increasing the number of coils in an electromagnet will _________ the power of the magnet.

Accepted Answer

increase

Answer

decrease

Answer

not affect

Question 8

A device that increases or decreases the voltage of alternating current

Accepted Answer

C. transformer

Answer

A. magnet

Answer

B. magnetic pole

Answer

D. magnetic force

Question 9

A device that converts electrical energy into mechanical energy

Accepted Answer

C. electric motor

Answer

A. electromagnet

Answer

B. electromagnetic induction

Answer

D. electromagnetism

Question 10

The process of creating a current in a circuit by changing a magnetic field

Accepted Answer

C. electromagnetic induction

Answer

A. electric generator

Answer

B. electric motor

Answer

D. magnet

Question 11

What can demagnetize a magnet?

Accepted Answer

B. high temperatures

Answer

A. high altitudes

Answer

C. low altitudes

Answer

D. low temperatures

Question 12

Faraday demonstrated that an electric current can be created by...

Accepted Answer

Moving a magnet near a wire

Answer

Having a magnet near by

Answer

Hooking a wire up to a battery

Answer

Running a generator

Question 13

What can electromagnets do that regular magnets can't?

Accepted Answer

Switch their magnetic fields

Accepted Answer

Be turned off

Answer

Explode

Answer

They are both the same in every way

Question 14

This picture shows a turbine generator used to produce electricity at a geothermal power plant.
Electricity is produced by using steam to _____________.

Accepted Answer

spin the turbine generators

Answer

heat the turbine generators

Answer

reduce friction in the turbine generators

Answer

reduce emissions from the turbine generators

Question 15

A compass needle responds to a magnetic field, because the compass needle is a

Accepted Answer

C. magnet.

Answer

A. generator.

Answer

B. motor.

Answer

D. transformer.

Question 16

Which electromagnet is the strongest?

Accepted Answer

Option A is correct

Answer

B.

Answer

C.

Answer

D.

Question 17

This picture is an example of a ___________

Accepted Answer

Step- Down Transformer

Answer

Step- Up Transformer

Answer

Motor

Answer

Generator

Question 18

What is the polarity of a current?

Accepted Answer

The direction of the flow of the electrons

Answer

The density of the flow of electrons

Answer

The amount of strength of the flow of electrons

Answer

The amount of space between electrons in the flow of electrons

Question 19

According to the diagram, which pair could both be north poles?

Accepted Answer

A and C

Answer

A and B

Answer

B and C

Answer

C and D

Question 20

Which of the following depicts a solenoid?

Accepted Answer

Option B is correct

Answer

A.

Answer

C.

Answer

D.

Question 21

What is the shape of a magnetic field around a solenoid?

Accepted Answer

Option C is correct

Answer

A.

Answer

B.

Answer

D.

Question 22

What is the shape of a magnetic field around a bar magnet?

Accepted Answer

Option A is correct

Answer

B.

Answer

C.

Answer

D.

Question 23

Which of the following diagrams correctly shows the magnetic field of this electromagnet?

Accepted Answer

Option A is correct

Answer

B.

Answer

C.

Answer

D.

Electromagnetism

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Science