Everyday Physics And Experiments calculators
9 calculators Buoyancy Experiment Calculator Calculate buoyant force, check float vs. sink, or find unknown liquid density with the two-liquid interface experiment. Metric and imperial units included.
Open Flat vs. Round Earth Calculator Run three classic experiments, disappearing ships, stick shadows and double sunsets, to see how a round Earth predicts results a flat Earth cannot. Metric or imperial.
Open Hair Diffraction Calculator Measure hair diameter with a laser. Enter wavelength, screen distance, and fringe position. Six solve modes, step-by-step diffraction math, hair-thickness gauge.
Open Immersed Weight Calculator Calculate the immersed weight of any object in 12 common fluids or a custom liquid. Uses Archimedes principle: immersed weight = object weight minus buoyant force.
Open Mass Moment of Inertia Calculator Calculate rotational inertia for 10 rigid-body shapes: spheres, cylinders, rods, disks, and cones. Metric/imperial units, parallel-axis theorem, step-by-step working.
Open Projectile Motion Experiment Calculator Calculate projectile range, max height, time of flight, and launch velocity from experiment measurements. Supports metric and imperial units with step-by-step math.
Open Smartphone Projector Calculator Calculate image distance, magnification, and projected screen size for your DIY smartphone projector from lens focal length and phone position.
Open Sun Angle Calculator Calculate solar elevation angle, azimuth, declination, hour angle, shadow length, air mass, sunrise, sunset and solar noon for any location and time.
Open Sunrise Sunset Calculator Calculate exact sunrise, sunset, solar noon, day length, and civil, nautical and astronomical twilight times for any location and date.
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