Physics

Items

• prove

  To establish the existence, truth, or validity of
• pulley

  A wheel used to transmit power by means of a band, belt, cord, rope, or chain passing over its rim
• pulse

  A transient variation of a quantity (such as electric current or voltage) whose value is normally constant
• pure

  Unmixed with any other matter
• quadratic

  Involving terms of the second degree at most
• quadrupole

  A system or device with four poles
• quality

  An inherent feature; Degree of excellence
• quantisation

  To subdivide (something, such as energy) into small but measurable increments
• quantity

  Total amount or number
• quantum

  Any of the very small increments or parcels into which many forms of energy are subdivided
• quark

  Any of several elementary particles that are postulated to come in pairs (as in the up and down varieties) of similar mass with one member having a charge of +²/₃ and the other a charge of −¹/₃ and are held to make up hadrons
• quasar

  A region at the center of a galaxy that produces an extremely large amount of radiation
• question

  An interrogative expression often used to test knowledge
• quotient

  The number resulting from the division of one number by another
• radian

  A unit of plane angular measurement that is equal to the angle at the center of a circle subtended by an arc whose length equals the radius or approximately 57.3 degrees
• radiation

  The process of emitting radiant energy in the form of waves or particles
• radioactive

  Of, caused by, or exhibiting the property possessed by some elements of spontaneously emitting energetic particles (such as electrons or alpha particles) by the disintegration of their atomic nuclei
• radius

  A line segment extending from the center of a circle or sphere to the circumference or bounding surface
• random

  Lacking a definite plan or pattern in no particular order.
• range

  The set of values a function may take on
• rarefaction

  A state or region of minimum pressure in a medium traversed by compressional waves (such as sound waves)
• rate

  A quantity, amount, or degree of something measured per unit of something else
• ratio

  The relationship in quantity, amount, or size between two or more things
• rational

  Relating to, consisting of, or being one or more rational numbers
• rational number

  Any number that can be expressed as a ratio of two integers, or in the form p/q, where 'p' and 'q' are integers and 'q' is not equal to zero.