150+ Best Physics Project Ideas for High School Students
Physics is the subject where the gap between classroom knowledge and real understanding is widest. You can solve kinematics problems flawlessly and still have no intuition for why a pendulum slows down, why a spinning top stays upright, or what it actually means for light to behave like both a wave and a particle. One way to close that gap is by working on a physics project.
Why should I do a physics project in high school? Where can I find a good physics project idea?
A project forces you to move from solving pre-structured problems to building something, measuring something, or modeling something where the answer isn't guaranteed.
This blog covers 150+ physics project ideas across every major subdiscipline, from classical mechanics to quantum phenomena, organized by topic with notes on what makes each one worth your time. Done well, a physics project gives you something genuinely impressive to bring to college applications, not just a line on a resumé but a project you can explain in detail to a physics professor or research lab.
If you're unsure how to scope or execute one, a mentored research program like Veritas AI can help you build the research skills to do it properly.
The habits you develop doing real physics, modeling a system mathematically, identifying sources of error, iterating on your experimental design, are directly what undergraduate lab courses and research positions are built around.
Mechanics and Classical Physics Projects
Mechanics is the most accessible entry point for physics projects because the phenomena are visible, the math is tractable, and the results are easy to verify. The best mechanics projects push past the obvious by introducing a complicating factor (air resistance, irregular geometry, coupled systems) and studying how it changes the behavior you'd predict from the simplified textbook version.
Measuring the actual vs. theoretical period of a pendulum at large amplitudes and modeling the correction
Comparing the drag coefficient of different projectile shapes using a water channel or wind fan setup
Studying the effect of spin rate on the lateral deflection of a spinning ball (Magnus effect)
Measuring the coefficient of restitution for different ball materials dropped onto different surfaces
Comparing the efficiency of energy transfer in elastic vs. inelastic collisions using a dynamics track
Studying how the mass distribution of a compound pendulum affects its period
Measuring the spring constant of different elastic materials under repeated loading and unloading cycles
Comparing the theoretical and experimental range of a projectile at varying launch angles accounting for air resistance
Studying the rotational inertia of homemade flywheel designs and comparing to theoretical predictions
Measuring how surface roughness affects the rolling resistance of a wheeled vehicle model
Comparing the mechanical advantage of different gear ratio configurations for a fixed load
Studying the resonant frequency of a driven oscillator and the width of its resonance peak
Measuring how the amplitude of a vibrating string changes with distance from the driving source
Comparing the efficiency of different lever arm lengths in a simple machine setup
Studying the terminal velocity of objects with different cross-sectional areas dropped through a viscous fluid
Thermodynamics and Heat Transfer Projects
Comparing the thermal conductivity of different building insulation materials using a steady-state heat flux measurement
Measuring the specific heat capacity of different metals using the method of mixtures
Studying the effect of surface color and texture on the rate of radiative heat loss
Comparing the efficiency of different passive solar water heater designs
Measuring how the thermal mass of different wall materials affects the time lag of indoor temperature response
Studying Newton's law of cooling for different container geometries and materials
Comparing the coefficient of performance of a simple thermoelectric cooler under different heat sink conditions
Measuring the effect of insulation thickness on the rate of heat transfer through a composite wall
Studying the relationship between pressure and temperature in a fixed volume of gas (Gay-Lussac's law verification and deviation at high pressure)
Comparing the evaporative cooling effect of different fabric types under controlled airflow
Waves, Sound, and Acoustics Projects
Measuring the speed of sound in different gases using a resonance tube
Comparing the acoustic absorption coefficient of different room treatment materials at multiple frequencies
Studying how room geometry affects standing wave formation and frequency distribution
Measuring the Doppler shift of a moving sound source and comparing to the theoretical prediction
Comparing the frequency response of different speaker enclosure designs built to the same specifications
Studying how string tension, length, and linear density affect the fundamental frequency of a vibrating string
Measuring the beat frequency produced by two nearly identical tuning forks and tracking its change with temperature
Comparing the sound transmission loss of different wall constructions at multiple frequency bands
Studying how different musical instrument body shapes affect the harmonic content of the produced tone
Measuring the effect of humidity on the speed of sound and the accuracy of distance measurement by echolocation
Comparing the directionality of different speaker horn geometries using a sound level meter grid
Studying Chladni patterns on plates of different shapes and materials using sand and a frequency generator
Measuring the noise cancellation effectiveness of different passive ear protection designs
Comparing the reverberation time of a room before and after acoustic treatment
Studying the relationship between vocal tract length and the formant frequencies of vowel sounds
Optics and Light Projects
Measuring the index of refraction of different transparent liquids using Snell's law and a laser
Comparing the focal length of different lens combinations in a compound optical system
Studying how polarization angle affects the intensity of transmitted light through a pair of polarizers
Measuring the diffraction pattern produced by slits of different widths and comparing to theoretical predictions
Comparing the color rendering index of different artificial light sources using a DIY spectrometer
Studying how the angle of a prism affects the dispersion of white light into its spectrum
Measuring the transmission spectrum of different colored filters using a spectrophotometer
Comparing the efficiency of different retroreflective materials under varying angles of incidence
Studying total internal reflection and measuring the critical angle for different glass-liquid interfaces
Measuring the effect of solution concentration on the rotation of polarized light (optical activity)
Comparing the resolving power of different telescope eyepiece designs at a fixed aperture
Studying how lens aberration changes with aperture size in a simple converging lens
Measuring the wavelength of different laser pointers using a diffraction grating
Comparing the UV transmittance of different sunscreen concentrations coated on a transparent substrate
Studying how the surface roughness of a mirror affects the coherence of reflected light
Electromagnetism Projects
Measuring the relationship between current, length, and force on a current-carrying conductor in a magnetic field
Comparing the magnetic field strength produced by solenoids with different core materials
Studying how coil geometry affects the efficiency of a wireless power transfer setup
Measuring the inductance of different air-core coil configurations using an LC circuit
Comparing the efficiency of different generator coil designs at a fixed rotational speed
Studying the effect of electrode geometry on the voltage output of a simple galvanic cell
Measuring how the dielectric material affects the capacitance of a parallel plate capacitor
Comparing the electromagnetic shielding effectiveness of different metal mesh configurations
Studying how the number of turns and core material affect the voltage ratio of a transformer
Measuring the effect of temperature on the electrical resistance of a semiconductor thermistor
Comparing the discharge curves of different battery chemistries under equivalent load conditions
Studying how antenna orientation affects the signal strength of a simple RF receiver
Measuring the Lenz's law effect: comparing the fall time of a magnet through copper vs. plastic tubes of identical dimensions
Comparing the efficiency of different small DC motor configurations under varying load conditions
Studying the skin effect by measuring AC resistance vs. frequency for different wire gauges
Energy and Sustainability Physics Projects
Comparing the power output of solar panels with different tilt angles across seasons at your latitude
Measuring the efficiency of a small wind turbine as a function of blade pitch angle and wind speed
Studying the relationship between wave frequency and the power output of a simple oscillating water column model
Comparing the efficiency of different thermoelectric generator configurations for low-grade waste heat recovery
Measuring the energy storage efficiency of a flywheel system vs. a battery of equivalent mass
Studying how turbine blade aspect ratio affects the power coefficient of a small horizontal-axis wind turbine
Comparing the electrical output of different photovoltaic cell materials (mono, poly, thin-film) under identical conditions
Measuring the thermal efficiency of a parabolic solar concentrator of different aperture sizes
Studying how the depth of a hydroelectric intake affects the power output of a scale model turbine
Comparing the charge and discharge efficiency of supercapacitors vs. lithium-ion batteries at different current rates
Fluid Mechanics Projects
Measuring the relationship between flow rate and pressure drop in pipes of different diameters (Poiseuille's law)
Comparing the drag force on objects of different shapes in a water flow channel at identical flow velocities
Studying the lift-to-drag ratio of different airfoil cross-sections in a low-speed wind tunnel or fan setup
Measuring how surface tension varies with temperature for different liquids using the capillary rise method
Comparing the flow patterns (laminar vs. turbulent) in a pipe at varying Reynolds numbers using dye injection
Studying how the viscosity of a fluid affects the terminal velocity of falling spheres
Measuring the thrust produced by nozzles of different geometries at a fixed water pressure
Comparing the efficiency of different impeller designs in a small centrifugal pump
Studying how the angle of attack of a flat plate affects the pressure distribution across its surface
Measuring the wave drag on a ship hull model as a function of hull length-to-beam ratio
Modern and Quantum Physics Projects (Accessible Versions)
Measuring the Planck constant using LEDs of different colors and their threshold voltages
Studying the photoelectric effect using different metal surfaces and UV light intensities
Measuring the e/m ratio for electrons using a deflection tube and magnetic field
Comparing the absorption spectra of different gas tubes using a DIY diffraction grating spectrometer
Studying the half-life of a simulated radioactive decay using dice or coin-flip statistical models
Measuring the work function of different metal surfaces using the photoelectric effect apparatus
Comparing the statistical distribution of particle detections from a Geiger counter to Poisson distribution predictions
Studying quantum tunneling analogy using microwave evanescent wave transmission across a gap
Measuring the bandgap of different semiconductor materials by studying their optical absorption edge
Comparing the emission spectra of different elements using flame tests and a DIY spectrometer
Computational and Simulation Physics Projects
Modeling the three-body gravitational problem numerically and studying the onset of chaotic behavior
Simulating heat conduction through a 2D material using finite difference methods and comparing to analytical solutions
Building a ray-tracing simulation for a compound optical system and comparing predicted vs. measured image positions
Modeling fluid flow around an obstacle using lattice Boltzmann methods and comparing to experimental dye visualization
Simulating the motion of a double pendulum and studying sensitivity to initial conditions
Building a numerical model of a driven harmonic oscillator and mapping out the resonance curve
Modeling electromagnetic wave propagation in a 1D medium with a varying refractive index
Simulating the magnetic field distribution of a complex coil geometry and comparing to Hall probe measurements
Building a Monte Carlo simulation of photon transport through a scattering medium and comparing to Beer-Lambert law
Modeling the spread of a thermal pulse through materials with different diffusivities
Astrophysics and Space Physics Projects
Measuring the rotation period of sunspots using publicly available NASA solar imagery
Comparing the luminosity-distance relationship for Cepheid variable stars using Hubble Space Telescope archival data
Studying the color-magnitude diagram of an open star cluster using publicly available photometry data
Measuring the Hubble constant from Type Ia supernova data in a public database
Comparing the frequency of exoplanet transit signals for different stellar spectral types using Kepler mission data
Studying the relationship between solar activity indices and geomagnetic storm intensity using NOAA data
Measuring cosmic ray flux at different altitudes using a homemade cloud chamber or Geiger counter
Comparing the orbital decay rates of different GPS satellite altitudes using publicly available TLE data
Studying the relationship between meteor shower activity and Earth's orbital position using IMO database records
Measuring the angular diameter of the Moon at perigee vs. apogee and comparing to orbital mechanics predictions
Biophysics Projects
Measuring the elastic modulus of different biological tissues using a force gauge and caliper setup
Comparing the acoustic impedance of different tissue-mimicking gels for ultrasound applications
Studying the electrical properties of plant stems using impedance spectroscopy
Measuring how different hydration levels affect the dielectric properties of skin-mimicking materials
Comparing the optical properties (scattering and absorption) of different tissue-simulating phantom materials
Studying the relationship between muscle cross-sectional area and maximum isometric force in a model system
Measuring the resonant frequency of different bone structures using vibration analysis
Comparing the flow resistance of different arterial model geometries under pulsatile flow conditions
Studying the piezoelectric properties of bone-derived and synthetic hydroxyapatite materials
Measuring the thermal properties of different tissue-equivalent materials for radiation therapy planning
What’s the best way to work on a physics project of my own?
The students who get the most out of physics projects are the ones who connect the experimental result back to the underlying theory. Not just "the pendulum swings slower when it's longer" but "my measured period at 30 degrees deviates from the small-angle approximation by 1.8%, which is consistent with the second-order correction from the Taylor series expansion of the exact solution."
It's also the kind of thinking that comes more naturally when you're working with someone who already operates that way. Veritas AI pairs high school students with mentors from top universities and AI companies to work on original research projects at the intersection of physics, data science, and machine learning. If your physics project is pointing you toward computational modeling, simulation, or data-driven research, this program is an option you can consider!
Frequently Asked Questions
What are good physics project ideas for high school students? The strongest physics projects combine an experimental measurement with a theoretical prediction and then analyze the gap between the two honestly. Mechanics, optics, and electromagnetism offer the widest range of accessible experimental setups. Computational and simulation projects are increasingly strong for students with Python or MATLAB experience.
How do you choose a physics project topic? Start with a physical phenomenon you find genuinely interesting and ask: what quantity could I measure, what variable could I change, and what would a careful comparison tell me? The narrower and more specific the question, the more defensible the conclusion.
What equipment do you need for a high school physics project? Many strong projects use basic equipment: a ruler, a timer, a multimeter, a smartphone with a sensor app, or a simple optical bench. More advanced projects might use an Arduino for data logging, a Raspberry Pi for sensor control, or publicly available datasets for computational work. The equipment matters less than the rigor of the methodology.
Can physics projects lead to science fair submissions? Yes. Physics is one of the strongest categories at major fairs like Regeneron ISEF and JSHS because the methodology is usually clear, the measurements are quantifiable, and the connection to real-world applications is often direct. Projects that combine experimental work with computational modeling tend to be especially competitive.
How does a physics project help with college applications? A well-executed physics project demonstrates the kind of independent intellectual initiative that competitive STEM programs look for. More importantly, it gives you something specific to discuss in interviews and essays, a project where you made design decisions, encountered unexpected results, and drew careful conclusions. That depth of engagement is what distinguishes a strong STEM applicant.
P.S. If you want to go further, we've also put together a guide to physics research opportunities for high school students to find a lab or program to work in, a comprehensive list of STEM science fair project ideas if you want to take a physics project to competition, and a guide to capstone and senior project ideas if you're looking to turn a strong physics investigation into a full independent research project.
For the more computational and quantitative side of physics, our guides to math projects and Python projects are useful companions, and if you want to build and demo something fast, our hackathon project ideas list has plenty of physics-adjacent builds worth considering.