1. État de ce qui est tendu. Tension d'un ressort.
2. Contraction. Tension musculaire.
3. Désaccord. Tension entre pays.
4. (Electricité) Différence de potentiel. Une tension de 110 volts.
In psychology, any event or situation that makes heightened demands on a person's mental or emotional resources. Stress can be caused by overwork, anxiety about exams, money, or job security, unemployment, bereavement, poor relationships, marriage breakdown, sexual difficulties, poor living or working conditions, and constant exposure to loud noise.
Many changes that are apparently “for the better”, such as being promoted at work, going to a new school, moving to a new house, and getting married, are also a source of stress. Stress can cause, or aggravate, physical illnesses, among them psoriasis, eczema, asthma, stomach and mouth ulcers. Apart from removing the source of stress, acquiring some control over it and learning to relax when possible are the best treatments.
ETYM Latin tensio, from tendere, tensum, to stretch: cf. French tension. Related to Tense.
Reaction force set up in a body that is subjected to stress. In a stretched string or wire it exerts a pull that is equal in magnitude but opposite in direction to the stress being applied at its ends. Tension originates in the net attractive intermolecular force created when a stress causes the mean distance separating a material's molecules to become greater than the equilibrium distance. It is measured in newtons.
1. The physical condition of being stretched or strained; SYN. tensity, tenseness, tautness.
2. A state mental or emotional strain or suspense; SYN. tenseness, stress.
3. A balance between and interplay of opposing elements or tendencies (especially in art or literature).
4. (Physics) A stress that produces an elongation of an elastic physical body.
See electromotive force.
Commonly used term for potential difference (pd).
The rate at which energy is drawn from a source that produces a flow of electricity in a circuit; expressed in volts; SYN. electromotive force, emf.
An electrical potential which can be measured in volts.
(emf) In physics, the greatest potential difference that can be generated by a source of current. This is always greater than the measured potential difference generated, due to the resistance of the wires and components, in the circuit.
The force that causes movement in charge carriers (the electrons) in a conductor. Acronym: EMF. Also called: potential, voltage. See also ampere, coulomb.