38 tools
Physics
Motion, forces, energy, momentum, rotation, waves, light and radioactivity — the physics formulas used in school and at work.
Tools in this category
- PhysicsSpeed, Distance and Time CalculatorFill in any two of speed, distance and time and get the third.
- PhysicsKinematics CalculatorGive any three of starting speed, final speed, acceleration, time and distance, and the other two come out.
- PhysicsAcceleration CalculatorAverage acceleration from a change in speed over a time, with the distance covered.
- PhysicsFriction Force CalculatorThe force friction is actually applying, what it takes to break an object free, and how far it slides to a stop.
- PhysicsInclined Plane CalculatorThe forces on a slope: what pulls down it, what presses into it, whether it slides, and the force to hold or raise it.
- PhysicsCollision CalculatorThe speeds after a collision, elastic, inelastic or anywhere in between, with the energy that survives and the energy that does not.
- PhysicsKinetic Energy CalculatorEnergy of a moving object, plus the height it would have to fall to gain the same energy.
- PhysicsRope Tension CalculatorThe tension in a rope for the four cases that come up: hanging, in a lift, over a pulley, and shared between two ropes.
- PhysicsMoment of Inertia CalculatorRotational inertia for the standard shapes, with the parallel axis theorem, radius of gyration and stored energy.
- PhysicsFree Fall CalculatorDistance fallen and speed reached after a given time of free fall.
- PhysicsCentre of Mass CalculatorThe balance point of several masses along a line or across a plane, with each one's share of the total.
- PhysicsWork and Power CalculatorWork done by a force over a distance, and the power that implies over a time.
- PhysicsSpherical Mirror CalculatorWhere a concave or convex mirror puts the image, how big it is, and whether it is real, virtual, upright or inverted.
- PhysicsPotential Energy CalculatorGravitational potential energy at a height, and the speed it converts into.
- PhysicsSound Level and Distance CalculatorSound level at a new distance, the intensity and pressure behind it, and the level from several identical sources.
- PhysicsTime Dilation and Length Contraction CalculatorLorentz factor at a given fraction of light speed, with the stretched time, the shortened length and the kinetic energy.
- PhysicsHalf-Life CalculatorQuantity remaining after radioactive decay, the number of half-lives elapsed and the decay constant.
- PhysicsHooke's Law Spring CalculatorForce in a spring at a given extension, the energy stored, the sag under a mass and the natural frequency.
- PhysicsWavelength CalculatorWavelength from frequency and wave speed, including the quarter-wave length.
- PhysicsMass-Energy Equivalence CalculatorEnergy locked in a given mass, expressed in joules, kilowatt-hours and tonnes of TNT.
- PhysicsMomentum and Impulse CalculatorMomentum of a moving mass, and the force needed to change it in a given time.
- PhysicsProjectile Range CalculatorHow far, how high and for how long a projectile travels, from launch speed and angle.
- PhysicsCoulomb's Law CalculatorElectrostatic force between two point charges, the field of the first, and their potential energy.
- PhysicsGravitational Force CalculatorAttraction between two masses and the acceleration the larger one produces.
- PhysicsBanked Curve Speed CalculatorDesign speed of a banked curve with no friction, the maximum speed with grip, and the flat-road limit.
- PhysicsDoppler Effect CalculatorFrequency heard as a source approaches and as it recedes, with the shift in hertz and semitones.
- PhysicsThin Lens Equation CalculatorImage distance, magnification and image height for a thin lens, plus its optical power in dioptres.
- PhysicsEscape Velocity CalculatorSpeed needed to escape a body's gravity, and the speed needed to orbit it at the surface.
- PhysicsSnell's Law Refraction CalculatorAngle of refraction between two media, the critical angle and the speed of light in each.
- PhysicsLorentz Force CalculatorMagnetic force on a moving charge, the radius it curves through and its cyclotron frequency.
- PhysicsPhoton Energy CalculatorEnergy of a photon from its wavelength, in electronvolts, attojoules and kilojoules per mole.
- PhysicsSpeed of Sound CalculatorSpeed of sound in air at a given temperature, the travel time over a distance and the echo rule.
- PhysicsAngular Momentum CalculatorAngular momentum and rotational energy, and the new speed if the moment of inertia changes.
- PhysicsPendulum Period CalculatorSwing period and frequency of a simple pendulum, plus the length for a one-second period.
- PhysicsForce on a Current-Carrying Wire CalculatorForce a magnetic field exerts on a wire carrying current, in total and per metre.
- PhysicsStanding Wave and Harmonics CalculatorResonant frequency of a string or open pipe at a chosen harmonic, and the closed-pipe frequency alongside.
- PhysicsBeat Frequency and Tuning CalculatorBeat rate between two close frequencies, the time between beats, and the interval in cents.
- PhysicsDe Broglie Wavelength CalculatorThe matter wavelength of a particle from its mass and speed, in metres, nanometres and picometres.