The use of physical power or violence to compel or restrain:
The act of impelling or the condition of being impelled:
(Physiol., Psychol.) Any action or agent that causes or changes an activity in an organism, organ, or part, as something that excites an end organ, starts a nerve impulse, or activates a muscle
An eager or strong desire to achieve something, such as fame or power.
The act of driving:
A vector quantity that expresses the relation of the velocity of a body, wave, field, or other physical system, to its energy. The direction of the momentum of a single object indicates the direction of its motion. Momentum is a conserved quantity (it remains constant unless acted upon by an outside force), and is related by Noether's theorem to translational invariance . In classical mechanics, momentum is defined as mass times velocity. The theory of Special Relativity uses the concept of relativistic mass . The momentum of photons, which are massless, is equal to their energy divided by the speed of light. In quantum mechanics, momentum more generally refers to a mathematical operator applied to the wave equation describing a physical system and corresponding to an observable ; solutions to the equation using this operator provide the vector quantity traditionally called momentum. In all of these applications, momentum is sometimes called linear momentum.
A provocation to action; a stimulus:
One that encourages.
Something that excites or stimulates.
(Law) An explanatory introduction in a pleading
The act or process of motivating:
Any drug, medicine, etc., as an amphetamine, caffeine, nicotine, or cocaine, that temporarily increases the activity of some vital process, organ, or system, esp. the nervous system
Something that causes and encourages a given response
A person or thing acting as the stimulus in bringing about or hastening a result
An electrical signal traveling along the axon of a neuron. Nerve impulses excite or inhibit activity in other neurons or in the tissues of the body, such as muscles and glands.
A pointed object used to prod:
A heap of snow, sand, etc. piled up by the wind
Find another word for impetus. In this page you can discover 26 synonyms, antonyms, idiomatic expressions, and related words for impetus, like: force, impulsion, spur, stimulus, incentive, ambition, drive, momentum, push, encouragement and fillip.