General physics

General physics

Terms realting to physics that are not fit for other subcategories.

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General physics

Dot product

Physics; General physics

A form of vector multiplication, where two vectors are multiplied to produce a scalar. The dot product of two vectors, A and B , is expressed by the equation A • B = AB cos θ ...

dynamics

Physics; General physics

The application of kinematics to understand why objects move the way they do. More precisely, dynamics is the study of how forces cause motion.

efficiency

Physics; General physics

For a heat engine, the ratio of work done by the engine to heat intake. Efficiency is never 100%.

elastic collision

Physics; General physics

A collision in which both kinetic energy and momentum are conserved.

electromagnetic spectrum

Physics; General physics

The spectrum containing all the different kinds of electromagnetic waves, ranging in wavelength and frequency.

electromagnetic wave

Physics; General physics

A transverse traveling wave created by the oscillations of an electric field and a magnetic field. Electromagnetic waves travel at the speed of light, c = 3.00 × 10 8 m/s. Examples include ...