• Thumbnail for Rotational frequency
    Rotational frequency, also known as rotational speed or rate of rotation (symbols ν, lowercase Greek nu, and also n), is the frequency of rotation of an...
    8 KB (964 words) - 21:43, 3 June 2025
  • Thumbnail for Frequency
    a second. Special definitions of frequency are used in certain contexts, such as the angular frequency in rotational or cyclical properties, when the...
    21 KB (2,296 words) - 18:44, 2 June 2025
  • Thumbnail for Rotational spectroscopy
    states of molecules in the gas phase. The rotational spectrum (power spectral density vs. rotational frequency) of polar molecules can be measured in absorption...
    51 KB (7,154 words) - 07:00, 22 November 2024
  • Thumbnail for Revolutions per minute
    (abbreviated rpm, RPM, rev/min, r/min, or r⋅min−1) is a unit of rotational speed (or rotational frequency) for rotating machines. One revolution per minute is equivalent...
    13 KB (1,628 words) - 17:10, 16 May 2025
  • imbalance between mechanical power supply and electric power demand the rotational frequency of the rotating masses in all synchronous generators in the grid...
    11 KB (1,482 words) - 20:06, 4 June 2025
  • Thumbnail for Angular frequency
    frequency (or angular speed) is the magnitude of the pseudovector quantity angular velocity. Angular frequency can be obtained multiplying rotational...
    9 KB (862 words) - 09:29, 8 June 2025
  • Thumbnail for Rotation around a fixed axis
    Rotation around a fixed axis or axial rotation is a special case of rotational motion around an axis of rotation fixed, stationary, or static in three-dimensional...
    19 KB (3,177 words) - 20:58, 20 November 2024
  • Thumbnail for Turn (angle)
    quantity § Components). In the ISQ/SI, rotation is used to derive rotational frequency (the rate of change of rotation with respect to time), denoted by n:...
    23 KB (1,917 words) - 10:22, 3 June 2025
  • Thumbnail for Dielectric heating
    dielectric material. At higher frequencies, this heating is caused by molecular dipole rotation within the dielectric. Molecular rotation occurs in materials containing...
    19 KB (2,397 words) - 04:11, 28 May 2025
  • Thumbnail for Rotation
    Rotation or rotational/rotary motion is the circular movement of an object around a central line, known as an axis of rotation. A plane figure can rotate...
    29 KB (4,090 words) - 07:50, 31 May 2025
  • Thumbnail for Angular velocity
    {\omega }}} , the lowercase Greek letter omega), also known as the angular frequency vector, is a pseudovector representation of how the angular position or...
    18 KB (2,654 words) - 16:15, 16 May 2025
  • Thumbnail for Tangential speed
    and is measured in SI units as meters per second (m/s). Rotational speed (or rotational frequency) measures the number of revolutions per unit of time....
    6 KB (983 words) - 15:57, 10 June 2025
  • rotational spectroscopy gives the rotational quantum numbers, energy levels, and selection rules. In linear and spherical top molecules, rotational lines...
    49 KB (6,786 words) - 19:45, 24 May 2025
  • Thumbnail for Angular displacement
    angular displacement (symbol θ, ϑ, or φ) – also called angle of rotation, rotational displacement, or rotary displacement – of a physical body is the...
    8 KB (1,133 words) - 06:39, 28 January 2025
  • Thumbnail for Torque
    Torque (redirect from Rotational force)
    In physics and mechanics, torque is the rotational analogue of linear force. It is also referred to as the moment of force (also abbreviated to moment)...
    32 KB (4,460 words) - 10:07, 3 June 2025
  • Thumbnail for Classical physics
    Vibration Rotation Circular motion Rotating reference frame Centripetal force Centrifugal force reactive Coriolis force Pendulum Tangential speed Rotational frequency...
    5 KB (571 words) - 09:28, 10 June 2025
  • Thumbnail for Utility frequency
    The utility frequency, (power) line frequency (American English) or mains frequency (British English) is the nominal frequency of the oscillations of alternating...
    47 KB (5,606 words) - 21:47, 6 June 2025
  • be simplified to: P ( t ) = F ⋅ v . {\displaystyle P(t)=F\cdot v.} In rotational systems, power is the product of the torque τ and angular velocity ω,...
    15 KB (2,070 words) - 14:05, 20 May 2025
  • crankshaft rotational frequency is chosen so that the mains' frequency is a multiple of it. For practical reasons, this results in crankshaft rotational frequencies...
    154 KB (16,756 words) - 22:12, 30 May 2025
  • Thumbnail for Moment of inertia
    angular/rotational mass, second moment of mass, or most accurately, rotational inertia, of a rigid body is defined relatively to a rotational axis. It...
    91 KB (17,179 words) - 15:28, 14 May 2025
  • analogous to mass in discussions of rotational motion. It is a measure of an object's resistance to changes in its rotation rate Moment of momentum ( L = r...
    22 KB (2,893 words) - 14:58, 22 February 2025
  • Thumbnail for Tidal locking
    loses rotational angular momentum, its orbital angular momentum is boosted by a similar amount (there are also some smaller effects on A's rotation). This...
    47 KB (5,088 words) - 07:37, 11 June 2025
  • decades by acoustic or electromagnetic uses. Hertz Orders of magnitude (rotational speed) "Black Hole Sound Waves  – NASA Science". Google Calculator result...
    11 KB (190 words) - 19:15, 13 January 2025
  • Thumbnail for Three-phase electric power
    system, three conductors each carry an alternating current of the same frequency and voltage amplitude relative to a common reference, but with a phase...
    57 KB (6,666 words) - 22:11, 10 June 2025
  • Thumbnail for Wilberforce pendulum
    will change from rotational to translational in 5 seconds and then back to rotational in the next 5 seconds. If the two frequencies are exactly equal...
    7 KB (934 words) - 18:44, 24 May 2025
  • Thumbnail for Space
    Vibration Rotation Circular motion Rotating reference frame Centripetal force Centrifugal force reactive Coriolis force Pendulum Tangential speed Rotational frequency...
    35 KB (4,436 words) - 02:25, 31 March 2025
  • Thumbnail for Engine braking
    down-shifting (shift to lower gear) to match the incoming gear's rotational frequency or speed (RPMs) to that of the driveshaft already in motion, requiring...
    13 KB (1,810 words) - 16:09, 7 April 2025
  • Angular acceleration (category Rotation)
    the origin. Angular momentum Angular frequency Angular velocity Chirpyness Rotational acceleration Torque "Rotational Variables". LibreTexts. MindTouch....
    10 KB (1,448 words) - 15:24, 19 January 2025
  • Thumbnail for Angular momentum
    Angular momentum (sometimes called moment of momentum or rotational momentum) is the rotational analog of linear momentum. It is an important physical quantity...
    93 KB (13,485 words) - 16:23, 13 June 2025
  • correspond to different rotational energy states. When a particle loses angular momentum, it is said to have transitioned to a lower rotational energy state. Likewise...
    11 KB (1,654 words) - 12:32, 18 July 2024