Physics · Fluid Mechanics
Build a hydraulic lift with syringes
Connect two syringes of different sizes and show how a small push lifts a large load.
- Easy
- 1 day
- Under 250
606 projects · 13 streams · every class
Physics projects 22
Physics projects you can measure: motion, light, sound, heat, electricity and magnetism. Each project gives the materials, the steps and the calculation behind the result.
22 Physics projects
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Physics · Optics
Measure the speed of light with a chocolate bar
Find the wavelength of microwaves from melt spots on chocolate, then calculate the speed of light.
- Easy
- 1–3 hours
- Under 250
Physics · Mechanics
Calibrate a spring and build a newton meter
Stretch a spring with known weights, plot the graph and turn it into a force meter you can use.
- Beginner
- 1–3 hours
- Under 250
Physics · Optics
Build a pinhole camera and find its magnification
Make a box camera with no lens and show that image size depends on object and screen distance.
- Beginner
- 1–3 hours
- Under 250
Physics · Waves
Measure the speed of sound with two phones
Use two phones with an acoustic stopwatch app to time a clap over a known distance.
- Easy
- 1–3 hours
- Free
Physics · Current Electricity
Verify Ohm's law and find where it fails
Plot current against voltage for a resistor and a bulb and explain the difference.
- Easy
- 1–3 hours
- Under 250
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
Physics + Environmental Science
Build a solar oven and measure its efficiency
Make a box cooker from cardboard and foil and track how hot it gets compared with open air.
- Easy
- 1 day
- Under 250
Physics · Oscillations
Find g with a simple pendulum and a phone
Time pendulums of different lengths and get the acceleration due to gravity from a straight-line graph.
- Easy
- 1–3 hours
- Under 250
Physics · Optics
Build a spectroscope from a CD and analyse light sources
Split light with a CD and compare the spectra of the Sun, LEDs, CFLs and flames.
- Easy
- 1 day
- Under 250
Physics · Magnetism
Map the magnetic field of bar magnets with a phone
Use the phone's magnetometer to measure how field strength falls with distance from a magnet.
- Easy
- 1–3 hours
- Under 250
Physics + Music, Theatre and Writing
Study the physics of a musical instrument
Measure how the length of a string or the water level in a bottle changes the pitch.
- Easy
- 2–7 days
- Under 250
Physics · Dynamics
Test which shapes fall slowest: a parachute study
Make parachutes of different sizes and shapes and time their fall with the same load.
- Beginner
- 1 day
- Under 250
Physics · Optics
Build a periscope and test the law of reflection
Make a periscope from card and two mirrors and show that both must sit at 45 degrees.
- Beginner
- 1–3 hours
- Under 250
Physics + Environmental Science
Model the greenhouse effect in two bottles
Compare how fast air and carbon-dioxide-rich air warm under the same lamp.
- Easy
- 1 day
- Under 250
Physics · Electrostatics
Build an electroscope and test charges
Make a foil-leaf electroscope in a jar and use it to compare charged objects.
- Beginner
- 1–3 hours
- Under 250
Physics · Waves
Build a ripple tank from a baking tray
Show reflection, diffraction and interference of water waves with a tray, a torch and a phone camera.
- Easy
- 1 day
- Under 250
Physics · Mechanics
Investigate how temperature affects the bounce of a ball
Chill and warm identical balls and measure how bounce height changes with temperature.
- Easy
- 1 day
- Under 250
Physics · Current Electricity
Build a simple circuit board game
Make a quiz board where a bulb lights when a question is matched to the right answer.
- Beginner
- 1 day
- Under 250
Physics · Optics
Show total internal reflection with a water stream
Trap a laser beam inside a curved stream of water, the way an optical fibre works.
- Easy
- 1–3 hours
- Under 250
Physics · Mechanics
Measure the coefficient of friction on an inclined plane
Find the angle at which a block just slides and compare friction for different surfaces.
- Easy
- 1–3 hours
- Under 250
Physics · Kinematics
Show that falling time does not depend on mass
Film objects of different mass falling together and compare their fall times frame by frame.
- Beginner
- Under 1 hour
- Free
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