22/1/24

Question 1

What is a magnetic field?

Answer 1

The region of space around a magnet where a magnetic material will experience a force.

Question 2

What happens when like and unlike poles are brought together?

Answer 2

Like = repel, unlike = attract

Question 3

What happens to the strength of the magnetic field as you get further away from the magnet?

Answer 3

decreases

Question 4

Where is the magnetic field of a magnet strongest?

Answer 4

At the poles

Question 5

In which direction do magnetic field lines always point?

Answer 5

North to south

Question 6

What does the distance between magnetic field lines indicate?

Answer 6

Strength of field, closer together = stronger field

Question 7

What is a permanent magnet?

Answer 7

Material that produces its own magnetic field.

Question 8

What is an induced magnet?

Answer 8

Material that becomes magnetic when it is put in a magnetic field.

Question 9

What does a magnetic compass contain?

Answer 9

Small bar magnet

Question 10

What is produced around a wire when an electric current flows through it?

Answer 10

Magnetic field

Question 11

What factors does the strength of the magnetic field around a straight wire depend on?

Answer 11

Size of current, distance from wire

Question 12

What effect does shaping the wire into a solenoid have on the magnetic field strength?

Answer 12

Increases the strength of the magnetic field.

Question 13

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

Answer 13

Put an iron core inside.