Question 1

What is the relationship between electricity and magnetism called?

Accepted Answer

electromagnetism

Answer

magneto-electricity

Answer

current relativity

Answer

field dynamics

Question 2

What type of magnet is strong enough to lift heavy beams?

Accepted Answer

electromagnet

Answer

permanent magnet

Answer

neodymium magnet

Answer

ferromagnet

Question 3

How can the direction of a magnetic field around a straight wire be determined?

Accepted Answer

using the right-hand rule

Answer

using a compass

Answer

using the left-hand rule

Answer

calculating with math

Question 4

What happens to the strength of a magnetic field when the current through a wire is increased?

Accepted Answer

it becomes stronger

Answer

it weakens

Answer

it remains the same

Answer

it becomes unpredictable

Question 5

What is a solenoid?

Accepted Answer

a coil of wire with current running through it

Answer

a circuit breaker

Answer

a type of battery

Answer

a permanent magnet

Question 6

What effect does adding ferromagnetic material to a solenoid have?

Accepted Answer

it changes it into an electromagnet and strengthens the magnetic field

Answer

it has no effect

Answer

it weakens the field

Answer

it creates a permanent magnet

Question 7

How can the strength of the magnetic field inside a solenoid be increased?

Accepted Answer

by increasing the number of coils or the current

Answer

by reducing the size of the solenoid

Answer

by decreasing the voltage

Answer

by using weaker materials

Question 8

What happens to the magnetic field of an electromagnet when the current is turned off?

Accepted Answer

it no longer exists

Answer

it increases

Answer

it remains constant

Answer

it weakens but stays

Question 9

What characteristic differentiates the magnetic field around wire loops from that of a straight wire?

Accepted Answer

the field can be stronger due to overlapping fields

Answer

the field is always consistent

Answer

the field is always weaker

Answer

the field direction is fixed

Question 10

What is one practical application of coiling a current-carrying wire?

Accepted Answer

to create a stronger magnetic field

Answer

to stop current flow

Answer

to decrease energy consumption

Answer

to create electrical resistance

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