Magnetism

Question 1

What are the properties of magnets

Answer 1

• They attract ferromagentic materials
• The cause temporary magnetism in ferromagentic materials when in close proximity/touching the ferromagentic material
• When freely suspended magnets line up roughly north to south
• Like poles of magnets repel and unlike poles attract

Question 2

What is a magnetic field?

Answer 2

A magnetic field is a region in which the atrractive/repulsive forces are experienced

Question 3

What are magnetic field ines?

Answer 3

Magnetic fields lines are draw to show the direction of a magnetic field at any point

Question 4

What direction do magnetic field lines point?

Answer 4

They always point north to south.The direction of thefields linesare thesameas thedirectionof theforce experiencedby anorth pole in that magnetic field

Question 5

Name three types of current carrying conductors and describe how to find the magnetic field they produce

Answer 5

• Long straight wire
• Circular loop
• Solenoid

The right hand grip rule can be used to find the direction of the magnetic field

Question 6

What is a solenoid?

Answer 6

A solenoid is a coil whose length is longer than the radius of the coil made.

Question 7

How can you make a solenoid magnetic field stronger?

Answer 7

Place a magnetic core inside it