PHYSICAL QUANTITY

Elongation: formulas and units of measurement

Elongation: symbol Δl, unit m. Formulas and explanations for Mechanics.

Δlmeter

KEY CONNECTIONS

Formulas

Δl = l − l₀

Fupr = k|Δl|

ε = Δl / l₀

σ / E = Δl / l₀

NOTATION

: Elongation is a change in the length of a body during deformation.
: Length is the linear dimension of a body or area of space.
: Initial length - the length of the body before deformation.
: Elastic force is a force that occurs when a body deforms.
: The stiffness of a spring is a characteristic of its resistance to deformation.
: Relative deformation is the proportion of change in length compared to the initial length.
: Mechanical stress is the internal force per unit cross-sectional area.
: Young's modulus is a characteristic of a material's resistance to elastic deformation.

THEORY

PRACTICE

Topics in order: the concepts, quantities and formulas of a lesson with explanations and examples.

Statements, answer options and a detailed walkthrough for every topic of the course.

A 10-question check-up, exercises with answer checking, and saved progress.