A quivering or shaking which is the effect of a blow, collision, or violent impulse; a blow, impact, or collision; a concussion; a sudden violent impulse or onset.

A sudden agitation of the mind or feelings; a sensation of pleasure or pain caused by something unexpected or overpowering; also, a sudden agitating or overpowering event.

The sudden convulsion or contraction of the muscles, with the feeling of a concussion, caused by the discharge, through the animal system, of electricity from a charged body.

Solar Wind) Abrupt changes in solar wind parameters, for example in the magnetic field strength, wind direction, speed and density, as a result of a flow speed in excess of characteristic speeds for the solar wind plasma. A solar wind shock as seen in the ACE L1 monitor may herald the arrival at the Earth of a CME or the interface between fast and slow solar wind streams. Both can give rise to magnetic storms and substorms. Back to the top.

The effect of a sudden change in speed of a car, locomotive or train, or part of a train.

A sudden stimulation of the nerve and convulsive contraction of the muscles caused by a discharge of electricity through the body. The severity depends upon (a) the amount of current, (b) whether the path of the current is through the path of a vital organ, and (c) the duration of the current.

A break in pressure, density, and particle velocity, carrying forward through a medium such as plasma.

an instance of agitation of the earth's crust; "the first shock of the earthquake came shortly after noon while workers were at lunch"

a mechanical damper; absorbs energy of sudden impulses; "the old car needed a new set of shocks"

a relatively infrequent, abrupt jar or sudden jolt that an electrical device may experience

A sudden transition at the front of fast flow of plasma or gas, when that flow moves too fast for the undisturbed gas to move out of its way. Also occurs when a steady fast flow hits a magnetic or solid obstacle.

(1) An abrupt impact applied to a stationary object. (2) An abrupt or nonperiodic change in position, characterized by suddenness, and by the development of substantial internal forces.

A sudden transition at the front of fast flow of plasma or gas, when the flow moves too fast for the undisturbed gas to flow out of the way. Also occurs when a steady fast flow hits an obstacle.

In mechanics, a shock is a sudden acceleration or deceleration caused, for example, by impact or explosion. Shock is measured in the same units as acceleration, i.e. metre per second squared. (Note: Shock wave is sometimes abbreviated as shock when the context is clear.)