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Speed & distance
Calculate average speed from distance and time.
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522 calculatorsPhysics calculators.
Explore motion, forces, energy and waves.
Browse the physics category subset →42 calculators · Star a calculator to find it in Favorites.
Mathematics
Exponential differential equation
Calculate exponential differential equation and see the working behind your result.
Open calculatorMathematics
Radioactive half-life
Radioactive half-life: use initial quantity, elapsed time, half-life in the same time units. Review the formula, worked example and calculation steps.
Open calculatorEngineering
Weight force
Weight force: use mass, gravitational acceleration. Review the formula, worked example and calculation steps.
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Horsepower from torque
Horsepower from torque: use shaft torque, rotational speed. Review the formula, worked example and calculation steps.
Open calculatorPhysics
Force
Force: use mass, acceleration. Review the formula, worked example and calculation steps.
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Acceleration
Acceleration: use initial velocity, final velocity, elapsed time. Review the formula, worked example and calculation steps.
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Kinetic energy
Kinetic energy: use mass, velocity. Review the formula, worked example and calculation steps.
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Gravitational potential energy
Gravitational potential energy: use mass, gravitational acceleration, height above reference. Review the formula, worked example and calculation steps.
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Momentum
Momentum: use mass, velocity. Review the formula, worked example and calculation steps.
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Impulse
Impulse: use average force, duration. Review the formula, worked example and calculation steps.
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Work
Work: use constant force, displacement magnitude, angle to displacement. Review the formula, worked example and calculation steps.
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Power from work
Power from work: use work, time. Review the formula, worked example and calculation steps.
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Spring constant
Spring constant: use force magnitude, extension magnitude. Review the formula, worked example and calculation steps.
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Spring energy
Spring energy: use spring constant, displacement. Review the formula, worked example and calculation steps.
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Torque
Torque: use force, lever arm length, angle between arm and force. Review the formula, worked example and calculation steps.
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Pressure
Pressure: use normal force, area. Review the formula, worked example and calculation steps.
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Buoyant force
Buoyant force: use fluid density, displaced volume, gravitational acceleration. Review the formula, worked example and calculation steps.
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Centripetal force
Centripetal force: use mass, velocity, path radius. Review the formula, worked example and calculation steps.
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Centripetal acceleration
Centripetal acceleration: use velocity, path radius. Review the formula, worked example and calculation steps.
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Angular velocity
Angular velocity: use rotation rate. Review the formula, worked example and calculation steps.
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Point-mass moment of inertia
Point-mass moment of inertia: use mass, distance from axis. Review the formula, worked example and calculation steps.
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Rotational kinetic energy
Rotational kinetic energy: use moment of inertia, angular velocity. Review the formula, worked example and calculation steps.
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Gravitational force
Gravitational force: use first mass, second mass, centre-to-centre distance. Review the formula, worked example and calculation steps.
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Free-fall time
Free-fall time: use drop height, gravitational acceleration. Review the formula, worked example and calculation steps.
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Projectile range
Projectile range: use launch speed, launch angle above horizontal, gravitational acceleration. Review the formula, worked example and calculation steps.
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Projectile maximum height
Projectile maximum height: use launch speed, launch angle, gravitational acceleration. Review the formula, worked example and calculation steps.
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Projectile flight time
Projectile flight time: use launch speed, launch angle, gravitational acceleration. Review the formula, worked example and calculation steps.
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Pendulum period
Pendulum period: use pendulum length, gravitational acceleration. Review the formula, worked example and calculation steps.
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Wavelength
Wavelength: use wave speed, frequency. Review the formula, worked example and calculation steps.
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Wave frequency
Wave frequency: use wave speed, wavelength. Review the formula, worked example and calculation steps.
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Frequency to period
Frequency to period: use frequency. Review the formula, worked example and calculation steps.
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Photon energy
Photon energy: use vacuum wavelength. Review the formula, worked example and calculation steps.
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Mass–energy equivalence
Mass–energy equivalence: use rest mass. Review the formula, worked example and calculation steps.
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Sensible heat
Sensible heat: use mass, specific heat capacity, temperature change. Review the formula, worked example and calculation steps.
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Linear thermal expansion
Linear thermal expansion: use initial length, expansion coefficient, temperature change. Review the formula, worked example and calculation steps.
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Coulomb force
Coulomb force: use first charge, second charge, separation. Review the formula, worked example and calculation steps.
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Capacitance
Capacitance: use charge magnitude, potential difference magnitude. Review the formula, worked example and calculation steps.
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Capacitor energy
Capacitor energy: use capacitance, voltage. Review the formula, worked example and calculation steps.
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Resistor power
Resistor power: use current, resistance. Review the formula, worked example and calculation steps.
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Snell’s law
Snell’s law: use incident refractive index, transmitted refractive index, incident angle to the normal. Review the formula, worked example and calculation steps.
Open calculatorPhysics
Thin lens image distance
Thin lens image distance: use focal length, object distance. Review the formula, worked example and calculation steps.
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