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maglev trains and electromagnets

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

Electromagnets are

a)

permanent magnets.

b)

activated by electricity.

c)

magnetised within strong magnetic fields.

2.
A force combining both electric and magnetic forces.
a)
Electromagnetism
b)
static magnetism
c)
magnoelectricism
d)
reverse magnetism
3.

This is an example of an

a)

electromagnet

b)

circuit breaker

c)

staticmagnet

d)

batterymagnet

4.
Which of the following is NOT a way to make an electromagnet stronger?
a)
increase the number of loops of wire
b)
increase the current or voltage
c)
decrease the wire size
d)
change the type of core
5.

In transport,................. trains use magnetic levitation to move without touching the ground.

a)

Maglev

b)

Steam

c)

Electrical

6.

When did the vision of MagLev begin?

a)

early 20th century

b)

late 20th century

c)

1940

d)

1981

7.

How does a MagLev train work?

a)

Powered by coal

b)

Powered by steam

c)

Levitates from the same magnet poles

d)

Levitates from opposite magnet poles

8.

What are the advantages of a MagLev train over a traditional train?

a)

Faster

b)

Quieter

c)

Louder

d)

Slower

9.

What are the disadvantages of the MagLev train compared to a traditional train?

a)

The noise

b)

Startup cost

c)

Energy Consumption

d)

Speed

10.

Where was the first Maglev train built?

a)

China

b)

Germany

c)

America

d)

Japan

11.

What speed does a Maglev train travel on average while carrying passengers?

a)

268 mph

b)

862 mph

c)

125 mph

d)

187 mph

12.

What is the fastest type of train in the world?

a)

Conventional

b)

Freight

c)

Maglev

d)

Steam

13.

When _______________ travels through a

conductor, a magnetic field is created

a)

current

b)

a magnetic field

c)

neutrons

14.

Electric currents produce _____________

a)

electron clouds

b)

magnetic fields

c)

sound waves

15.

In magnets and electromagnets, similar poles attract

a)

true

b)

false

16.

In magnets and electromagnets, dissimilar (opposite) poles attract

a)

true

b)

false

17.

The object inside a radio that makes a speaker work is called a(n) ______________________

a)

electromagnet

b)

permanent magnet

c)

electron cloud

18.

Electrons which collect at the negative end of the battery, can flow to the positive end through a ___________________

a)

wire

b)

electron cloud

c)

magnet

19.

A magnet is defined as

a)

the force between two opposite poles

b)

any material that has a magnetic field

c)

the electron cloud surrounding an object

20.

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

a)

increase the current flowing through the coil

b)

increase the number of coils

c)

add an amplifier to it

d)

put iron core inside the coil