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EM: Magnetic Field LINES
Forces and Motion 9.1
Lesson 17.
Magnetic Field Lines
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Physics
Secondary Education
Age 13
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Forces and Motion 9.1
Lesson 17.
Magnetic Field Lines
Slide 1 - Tekstslide
How are you today?
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Slide 2 - Poll
Highlights of the Day
describe a magnetic field, and explain that it surrounds a magnet and exerts a force on other magnetic fields
Values :
Responsibility and Determination
Slide 3 - Tekstslide
Recall
Slide 4 - Tekstslide
Magnetic Fields
A
magnetic field
is the area around a magnet where the effects of the magnet can be detected.
EFFECTS:
Attraction or Repulsion
Slide 5 - Tekstslide
Strongest
Strongest
Slide 6 - Tekstslide
Slide 7 - Tekstslide
Strongest
Slide 8 - Tekstslide
Strongest
The magnetic field is strongest where the lines are closest together.
Slide 9 - Tekstslide
Slide 10 - Tekstslide
Rules: Magnetic Field Lines
join opposite poles
have arrows that point N S
must not touch each other
must not cross each other
Slide 11 - Tekstslide
If one magnet is
stronger
than another, the magnetic field of the stronger magnet will be different in two ways.
All the field lines will be closer together.
The field lines will extend further away from the magnet.
Slide 12 - Tekstslide
S
N
Apply the Rules: Magnetic Field Lines
Slide 13 - Tekstslide
Magnetic fields interacting
Two north poles repel.
Two south poles repel.
A north and a south pole attract.
Slide 14 - Tekstslide
Slide 15 - Tekstslide
S
N
S
N
Slide 16 - Tekstslide
Slide 17 - Tekstslide
S
N
N
S
Slide 18 - Tekstslide
Slide 19 - Tekstslide
N
S
S
N
Slide 20 - Tekstslide
Self-survey: Rate your level of understanding and participation in this lesson.
1
5
Slide 21 - Poll
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