Temporal rates

In physics, a force is an action that can cause an object to change its velocity or its shape, or to resist other forces, or to cause changes of pressure in a fluid. In mechanics, force makes ideas like 'pushing' or 'pulling' mathematically precise. Because the magnitude and direction of a force are both important, force is a vector quantity (force vector). The SI unit of force is the newton (N), and force is often represented by the symbol .

Velocity is a measurement of speed in a certain direction of motion. It is a fundamental concept in kinematics, the branch of classical mechanics that describes the motion of physical objects. Velocity is a vector quantity, meaning that both magnitude and direction are needed to define it (velocity vector). The scalar absolute value (magnitude) of velocity is called , a quantity that is measured in metres per second (m/s or m⋅s−1) in the SI (International System of Units) system. For example, "5 metres per second" is a scalar, whereas "5 metres per second east" is a vector. If there is a chang

rate at which energy is transferred, used, or transformed

In kinematics, the speed (commonly referred to as v) of an object is the magnitude of the change of its position over time or the magnitude of the change of its position per unit of time, it is thus a non-negative scalar quantity. The average speed of an object in an interval of time is the distance travelled by the object divided by the duration of the interval; the instantaneous speed is the limit of the average speed as the duration of the time interval approaches zero. Speed is the magnitude of velocity (a vector), which indicates additionally the direction of motion.

distance travelled during a unit of time by a sound wave propagating through an elastic medium

rate at which electrical energy is transferred by an electric circuit

acceleration of an object caused by gravity

physical quantity defined as the rate of change of angular position whose direction is (if regarded as a vector) the axis of rotation

In musical terminology, tempo (Italian for 'time'; plural 'tempos', or from the Italian plural), measured in beats per minute, is the speed or pace of a given composition, and is often also an indication of the composition's character or atmosphere. In classical music, tempo is typically indicated with an instruction at the start of a piece (often using conventional Italian terms) and, if a specific metrical pace is desired, is usually measured in beats per minute (bpm or BPM). In modern classical compositions, a "metronome mark" in beats per minute, indicating only measured speed and not any

measure of the number of deaths in a population from a given cause, scaled by population, in a set period of time

total number of live births per 1,000 population divided by the length of a given period in years

rate of change of angular velocity

total amount of light energy flowing out of a light source per unit of time

speed that exceeds the speed of sound

for a reactant or product in a particular reaction is intuitively defined as how quickly or slowly a reaction takes place

upright=1.5|thumb|A Lockheed Martin F-35 Lightning II aircraft performing a vertical climb using its [[Pratt & Whitney F135 jet engine, which produces of thrust.]]

number of contractions (beats) of the heart per minute (bpm)

information transmission rate expressed in bits per second

rate of change of acceleration

volume flow rate of water that is transported through a given cross-sectional area

measure of frequency of image frames in video

basic unit of time in music and music theory

physiological quantity, measurement of the rate of settling of red blood cells

mass per time of a fluid passing through a cross section

biological metric

volume of fluid which passes per time

finance term; profit on an investment

crude birth rate minus the crude death rate

maximum rate of data transfer over a network

power carried by electromagnetic waves

frequency at which CPU chip or core is operating

term in communications theory

rate at which a substance is removed or cleared from the body by the kidneys or in renal dialysis

breathing frequency; rate at which breathing occurs. This is usually measured in breaths per minute

vertical speed of an aircraft

maximum rate of production or the maximum rate at which something can be processed

rate of transfer of energy as heat

physical quantity

measure of the rate at which mutations occur during some unit of time

the maximum rate of change of electrical signals

measurement of how many vehicles travel on a certain road

term from classical mechanics

movement of computer data from one storage medium to another

rate of change

test measuring urine flow during urination

rate of modulation of a digital signal

number of pulses of a repeating signal in a specific time unit

thumb|High-capacity bus rapid transit systems such as [[TransMilenio are capable of very short headways, measured in seconds]] Headway is the distance or duration between vehicles in a transportation system. The minimum headway is the shortest such distance or time achievable by a system without a reduction in the speed of vehicles. The precise definition varies depending on the application, but it is most commonly measured as the distance from the tip (front end) of one vehicle to the tip of the next one behind it. It can be expressed as the distance between vehicles, or as time it will take

measure of the number of individuals or items moving into or out of a collective over a specific period of time

time density of the average information in a stochastic process

time derivative of shear strain

display technology which varies the refresh rate of a display on the fly

bandwidth guaranteed by an internet service provider

standard rate of extinction in earth's geological and biological history before humans became a primary contributor to extinctions