See how observed frequency changes as a source moves toward or away from an observer. Explore the relationship between source speed and frequency shift.
Explore other physics graphs and simulations.
Simulate projectile motion with adjustable angle, velocity, and gravity. See trajectory, range, and max height in real time.
Open tool →GraphGraph displacement and velocity of a mass-spring or pendulum system over time. Adjust amplitude, frequency, and phase to explore SHM.
Open tool →GraphSuperpose two waves with adjustable amplitudes and phase difference. See constructive and destructive interference patterns emerge.
Open tool →GraphVisualise the inverse relationship between pressure and volume at constant temperature. Plot isotherms for multiple temperatures.
Open tool →GraphExplore the direct proportionality between volume and absolute temperature at constant pressure. Extrapolation reveals absolute zero.
Open tool →GraphPlot the exponential decay of voltage and current as a capacitor discharges through a resistor. Adjust R and C to see how the time constant τ = RC changes.
Open tool →GraphModel exponential radioactive decay. Adjust the half-life to see how the number of undecayed nuclei and activity change over time.
Open tool →GraphPlot Planck's spectral radiance curves at multiple temperatures. See Wien's displacement law shift the peak wavelength as temperature changes.
Open tool →GraphCompare voltage-current relationships for an ohmic resistor, a filament lamp, and a diode. See where Ohm's law holds and where it breaks down.
Open tool →GraphPlot gravitational field strength against distance from a planet. See the inverse-square law outside and linear variation inside a uniform sphere.
Open tool →GraphPlot binding energy per nucleon against mass number using the semi-empirical mass formula. Identify the iron-56 peak and the fission and fusion regions.
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