ELECTRICITY and MAGNETISM
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Is it possible to show electrostatic charges with
a homemade electroscope?
Demonstrate how to build and use a homemade ELECTROSCOPE.
A very simplified homemade ELECTROSCOPE.
electrostatic charges, then build and demonstrate a charge detector.
Can the polarity of different static electric charges be determined with a
simple homemade charge detector?
electrostatic charges, then build and demonstrate the effects
produced with a Van de Graaf generator.
friction build up enough charge to provide an electric shock?
Research and explain how a Leyden Jar stores and electric charge.
What factors affect the distance at which an electrometer will work?
Does temperature affect the output of a photo-electric cell?
How is the conductivity of distilled water
affected when substances such as
salt, sugar, vinegar or baking soda are added?
Which light bulb is the best value for the money? Make your own basic light bulb, with a vacuum if possible, and test different
filament materials to determine which is best.
Does temperature affect
the output voltage or current of a dry cell battery?
Does a dry cell battery last longer if it is used continuously or if it is turned
on and off periodically?
Which dry cell battery lasts the longest when used continuously?
Demonstrate how to use common fruits and vegetables as batteries.
Demonstrate how to make and use a vinegar battery.
Demonstrate how to make and use a potato battery.
Under what different conditions can the human body act as a battery?
Make a homemade dry cell to experiment with.
Does the angle of incident light affect the amount of electricity in a solar cell?
What is the affect of light concentration on the output of solar cells?
Build a homemade photoelectric cell to experiment with.
Which metals make the best sources of thermoelectricity?
Build a "Jacobs Ladder" to demonstrate air ionization.
and explain how electricity can be used to split water into its
hydrogen and oxygen components.
crystal radio detector, explain its operation, and determine the
different factors which affect how well it operates.
Which substances block radio waves the most?
Examine the factors which
determine current flow in various configurations
of resistive circuits such as series, parallel, and series-parallel.
Can an electronic device automatic sort objects by
What factors determine the strength of an electromagnet?
Does the number of turns of wire in an electromagnet affect its strength?
Can we use magnetism to levitate and move a train?
Here's a more complicated magnetically levitated model train.
How does the strength of a magnetic field vary with distance from the magnet?
Can the earth's magnetic field be detected by a rapidly spinning coil of wire?
If a permanent
magnet is placed opposite the earth's magnetic field, is there
a point(s) in space where the permanent magnet cancels earth's field?
Demonstrate how electromagnets are used to create useful everyday products.
Demonstrate how electromagnetism can be used to create an electric motor.
Build a simple electric generator and test the factors affecting output.
Demonstrate the construction and operation of an electromagnetic crane.
Build a model generator which uses wind as the power source.
Build a small model showing
how electricity can be generated from
Can a basic compass be made from common household items?
Build and explain the operation of a model hydroelectric generator.
Demonstrate and explain
how electricity can be generated from nothing more
than a magnetic field and a coil of wire.
Build a model
"rail gun" and show how such a device might be used to
launch an orbiting space craft or satellite.
Research the history
and technical operation of the telegraph system and
construct a basic telegraph system capable of sending signals between rooms.
Can telegraphs operate as wireless devices?
and explain how interupting an electrical cirucuit can cause
vibrations that in turn produce sound.
radio wave frequencies or high voltage transmission lines pose
For more electricity and magnetism ideas see our Physical Science page HERE.
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