learning objectives: what are force fields? describe field patterns of: - bar magnets - straight...
TRANSCRIPT
Learning Objectives:• What are force fields?• Describe field patterns of:
- Bar magnets - Straight wires- Plane coils- Solenoids
What are Force Fields?
There must be some sort of
force field around the black
box that attracts the magnet
When the box is cold it
is attracted by the
magnet, but when it is
warm it is not
attractedEverybody knows that force
fields are Science Fiction and
that only Superheroes can
create them!
Click here for a more detailed explanation of this effect!
In Sci-fi films and cartoons many Superheroes have the ability to generate powerful force fields that can protect them from the enemy’s attacks.
But are force fields real? And what are they?
Sound by Calamarius
What are Force Fields?
Anti-Gravity Fields
Gravitational Forces
Magnetic Forces
Electric Forces
Electromagnetic Forces
Telepathic Forces
Bulletproof Fields
What are Force Fields?
The Earth’s magnetic field protects us from cosmic rays
What are Force Fields?
Follow the instructions your teacher will give you and draw the pattern observed in these three situations.
Bar magnets field patterns
N
S N
S
N
S
N
S
S
N
Show field Show field Show field
Some magnetic fields are naturally occurring, like in Magnetite, others can be induced by a current.
Wires, coils and solenoids
Courtesy of Rob Lavinsky
Wires, coils and solenoids
• Magnetic fields are a type of force field• The field patterns of:
Bar Magnets
Wires
Plain Coils
Solenoids
Learning outcomes
Your task is to draw a mind map with “Magnetic Fields” as the central topic. Use the following rules:
- Use many colours for branches and text- Use one word only on each branch- Use as many images as possible- Link different concepts together with arrows to help
you give meaning to and create connections in your work
Watch the video in the next slide to see some guidelines on effective mind mapping
Homework
Homework