ACA Grade 8 Science
  • Home
  • Scientific Method
  • Chemistry
  • Physics
  • Ecology
  • Earth's Atmosphere
  • Science Fair/ Science Olympics
  • Cells & Systems
Picture
Lesson 1.1 - What is Magnetism?

What is the Shape of a Magnetic Field?

Vocabulary
  • magnet
  • magnetic pole
  • magnetic force
  • magnetic field
  • magnetic field lines
What is the shape of a magnetic field?

Magnetic Field
  • Magnetic forces are exerted all around a magnet.
  • The area of magnetic force around a magnet is known as its magnetic field.
  • Because of magnetic fields, magnets can interact without touching.

 
 
 

Magnetic Field Lines
  • Magnetic field lines are lines that map out the magnetic field around a magnet.
  • Magnetic field lines spread out from one pole, curve around the magnet, and return to the other pole.
  • Arrows are used to indicate the direction of the magnetic field lines - always leaving the north pole and entering the south pole.

 
 
 







Magnetic Field Strength
  • The closer the lines are, the stronger the field.
  • A magnet's mangetic field lines are closest together at the poles.

 
 
 



Combined Fields
  • When the magnetic fields of two or more magnets overlap, the result is a combined field.
  • Depending on which poles are near each other, the magnetic field lines are different.

 
 

Picture
Picture
Picture
Picture
Picture
Back
Quiz 1.1
Powered by Create your own unique website with customizable templates.