1
Record a Video
Film the motion with the camera already in the student's pocket.
Video analysis
Video Analysis for Physics
Turn any filmed motion into real data — position, velocity, acceleration, rotation and energy — on a phone, a Chromebook or in the browser.
Free • No account • No personal data • Mobile & Web
How it works
From a phone video to a velocity graph in four steps.
2
Calibrate
Place a known length in the frame to set the real-world scale, and position the axes.
3
Track
Tap the moving point frame by frame, with pixel precision.
4
Analyse Data
FizziQ plots position, velocity and acceleration — fit a model, measure g, test conservation laws.
Why video analysis
Study the real world, not an idealised lab setup.
Study real motion
Students analyse everyday movements — a falling ball, a kick, a swing — instead of artificial setups.
Hands-on learning
They film, calibrate and measure themselves. Students become researchers.
Scientific reasoning
From observation to mathematical modelling, in one continuous session.
Measurements
What FizziQ measures
The same quantities from videos and chronophotographs alike — explore the chronophotographs →
📍Position
Track x and y coordinates frame by frame, in real units.
➡️Velocity
Instantaneous and average velocity, along each axis or as a norm.
⚡Acceleration
Linear and angular acceleration, derived from smoothed data.
🔋Energy
Kinetic, potential and mechanical energy, once the mass is entered.
🔄Rotation
Angular position and angular velocity for spinning or swinging bodies.
Tools
Professional-grade, classroom-simple.
Accurate measurements
Pixel-precision markingCalibration of scale and axesAutomatic frame-rate detection
Scientific calculations
Velocity and accelerationAngular quantitiesKinetic, potential and mechanical energy
Advanced analysis
Graphs and interpolationModelling, curve fitting, smoothingExport to CSV, PDF and Python
Two ways to work
Mobile in the field, Web on the big screen.
FizziQ Mobile
iPhone, Android, tablet
FizziQ Web
Chromebook, Windows, macOS, Linux
Experiments
Kinematics your students can film today.
Free fall
Measure g by fitting a parabola to the positions.
Projectile motion
Decompose a trajectory into independent x and y motions.
Pendulum
Period, amplitude and the exchange between kinetic and potential energy.
Circular motion
A constant speed with a continuously turning velocity vector.
Collisions
Test the conservation of momentum and energy.
Sports biomechanics
Analyse a jump, a kick or a serve frame by frame.
Built-in library
No camera available?
FizziQ ships with ready-to-analyse kinematics videos and chronophotographs — sport, free fall, collisions. The session goes to the analysis, not the logistics.
Browse the library
Reference guide
Learn the Science Behind Video Analysis
Calibration, frame rates, uncertainty, graph interpretation and ready-made classroom experiments — the full method, in one guide.
Read the Complete GuideFrequently asked questions
What is video analysis in physics?
Video analysis studies motion by marking an object's position frame by frame. From those positions, FizziQ computes velocity, acceleration and energy — turning an ordinary video into a quantitative measurement.
Can students analyse motion with a smartphone?
Yes. A smartphone films the motion and FizziQ analyses it on the same device, with no extra equipment. FizziQ also runs on tablets, and FizziQ Web on any computer or Chromebook.
What quantities can be measured?
Position, displacement, velocity, acceleration, angular position and angular velocity — and, once the object's mass is entered, kinetic, potential and mechanical energy.
Can I analyse videos on a Chromebook?
Yes. FizziQ Web runs in the browser with no installation, on Chromebooks, Windows, macOS and Linux.
Is FizziQ free, and does it need an account?
FizziQ and FizziQ Web are completely free, with no ads, no account and no personal data collection.
Can I analyse chronophotographs?
Yes. FizziQ has a dedicated chronophotography mode and a built-in library of chronophotographs, alongside video analysis.
Can I export the data to Excel or Python?
Yes. Measurements export as CSV for spreadsheets, as PDF, and as Python for further processing.
Ready to analyse your first motion?
Free, no sign-up, in the app or in the browser.