Physics Calculators
Use focused physics calculators for circuit formulas, energy formulas, and constant-acceleration motion checks. Each tool normalizes units to SI first, then shows practical conversions for worksheet review.
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Ohm's Law Calculator
Calculate voltage, current, resistance, and power with ampere, milliampere, ohm, kilohm, volt, and watt conversions.
Electrical Power Calculator
Calculate watts, kilowatts, joules, kWh, and equivalent resistance from voltage, current, and run time.
Kinetic Energy Calculator
Calculate kinetic energy, momentum, and energy conversions from mass and speed inputs.
Velocity and Acceleration Calculator
Calculate final velocity, displacement, acceleration, average velocity, and motion unit conversions.
Calculators released for Day 20
Physics
Ohm's Law Calculator
Calculate voltage, current, resistance, and power with ampere, milliampere, ohm, kilohm, volt, and watt conversions.
Use calculatorPhysics
Electrical Power Calculator
Calculate watts, kilowatts, joules, kWh, and equivalent resistance from voltage, current, and run time.
Use calculatorPhysics
Kinetic Energy Calculator
Calculate kinetic energy, momentum, and energy conversions from mass and speed inputs.
Use calculatorPhysics
Velocity and Acceleration Calculator
Calculate final velocity, displacement, acceleration, average velocity, and motion unit conversions.
Use calculatorPhysics formulas and unit checks
| Topic | Formula | SI units | Fixture check |
|---|---|---|---|
| Ohm's law | V = I x R | V, A, ohm | Current in milliamps must be converted to amps before multiplying. |
| Electrical power | P = V x I; E = P x t | W, J, kWh | Watts measure rate; joules and kWh measure energy over time. |
| Kinetic energy | KE = 1/2 m v^2 | kg, m/s, J | Speed is squared, so speed-unit mistakes grow quickly. |
| Constant acceleration | v = u + at; s = ut + 1/2at^2 | m/s, m/s^2, s, m | Use signs consistently for acceleration and velocity direction. |
Source-backed formulas and units
Physics calculators built around unit fixtures
The Day 20 physics release focuses on formulas that are compact but unit-sensitive. Ohm's law, electrical power, kinetic energy, and constant-acceleration equations all require a clear SI base before the answer is trustworthy. Toolarithm normalizes each input first, then prints the converted values beside the final result.
These calculators are educational tools. They support physics worksheets, classroom examples, and formula checks. They do not replace electrical safety review, engineering design, crash analysis, or laboratory procedure.