Physics · Electromagnetism
Build a homopolar motor and measure what changes its speed
Make the simplest electric motor from a cell, a magnet and wire, then test how magnets change its speed.
- Easy
- 1–3 hours
- Under 250
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Experiments, working models and investigations in physics, chemistry, biology, earth and space. Most can be done at home or in a school lab, and each one says what it costs and how long it takes.
3 Science projects
Physics · Electromagnetism
Make the simplest electric motor from a cell, a magnet and wire, then test how magnets change its speed.
Physics · Mechanics
Chill and warm identical balls and measure how bounce height changes with temperature.
Physics · Kinematics
Film objects of different mass falling together and compare their fall times frame by frame.
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