VisuApps
Secondary-school physics made tangible — optics, mechanics, waves and more to explore.
Apps
Aperture, shutter and ISO on a simulated photo: a park scene with a passing coupé and string lights, by day, at dusk or at night. A wide aperture softens the background and enlarges the bokeh, long shutter speeds smear the car into light trails, high ISO adds noise. "Hold EV" balances every change with another setting — light balance in stops, light meter and live histogram show: same brightness, different look.
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Change an object’s density and size in water. Compare buoyant force with weight and explore why density, rather than weight alone, determines floating.
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Move a sound source and compare compressed and stretched wavefronts. Explore observed frequency, audible pitch changes and the Mach cone beyond sound speed.
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Compare RGB light with CMY pigments using intensity controls. Discover why combining colours produces different results for light and paint.
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Compare elastic and inelastic collisions using momentum and kinetic energy before and after impact. Explore why different numbers of balls emerge.
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Drag an object and adjust focal length to construct images with three principal rays. Compare real inverted and virtual upright images and the lens equation.
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Set launch angle and speed, then compare horizontal and vertical motion. Explore parabolic paths, range and optional air resistance.
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