Low-Tech kit educational
path
Minds-on 40 simple
experiments
1. Magnets and magnetic
materials
1.1.
Magnetic beetles
1.2.
Magnetic dog
1.3.
Magnetic materials
1.4. Magnets floating on the water
2. Magnetic fields
2.1.
Study of
magnetic field with
filings
2.2. Set of toy
magnets + fluxdetector
2.3.
Magnetic sticks and
balls (Geomag) + magnetic micro-fillings table
2.4. Series
of
compasses above a magnet
3. Magnetic interactions
3.1. Magnetic
sticks and dipole magnets –
attraction and repulsion
3.2. Tile
of 5 magnetic rings around a stick
3.3. Tile
of many magnetic rings in a tube
3.4.
Attracting
force: measurement
with springs
3.5.
Repelling
force: measurement
based on gravity
3.6.
“Ski jumping”
in a magnetic
field
4. The Earth’s magnetic field
4.1. The unwilling magnet
4.2. Measurement of
component of magnetic field with
compass
5. Magnetic effect of a
current
5.1 Magnets
and solenoids studied with compasses
5.2 Magnetic
field around a wire
Oersted’s
experiment – vertical version (Ampere's law)
5.3 Magnetic
field around a wire
Oersted’s experiment – horizontal
version
5.4 Magnetic
force
between parallel wires (Ampere’s experiment)
5.6 Magnetic
fields from coils
a) Field in
the
centre of a coil
b) Field in the
centre of a solenoid
c) Interaction
between a coil and a magnet
5.7. Iron
core (big nail) vertically attracted inside a coil
6. Magnetic force on a
current - Lorentz force
6.1. Pohl's
experiment
6.2. Turning
effect on a coil (turning coil between magnets)
6.3. Electric
motors
a) Paperclip motor
b) One
loop motor
c) Homopolar
motor
7. Electromagnetic induction
7.1.
Induced EMF and
current in a moving wire (inverted Pohl's experiment)
7.2.
Induced EMF and current in a coil (magnet is
pushed into a coil)
7.3.
Eddy currents:
a) lazy pendulum
b) electromagnetic
brake
c) the
drunken magnet
d) the sliding magnet
e) falling
magnet in
tube of copper with/without slits
f) soft magnet landing
8. Generators – simple AC generator
8.1. Handle
version
8.2. Shaken
version
9. Coils and transformers
9.1. Core-free
transformer
9.2. Different
cores in a transformer
