PHYSICAL QUANTITY

Amplitude: formulas and units of measurement

Amplitude: symbol A, xₘ, unit m. Formulas and explanations for Oscillations and waves.

A, xₘmeter

KEY CONNECTIONS

Formulas

x = xₘ cos(ωt)

q = qₘ cos(ωt)

i = Iₘ cos(ωt)

vₘ = xₘω

aₘ = xₘω²

Iₘ = qₘω

NOTATION

: Displacement is the vector of change in body position relative to the starting point.
: The displacement amplitude is the largest deviation in absolute value from the equilibrium position.
: Cyclic frequency is the rate of change in the phase of oscillation.
: Time is a quantity characterizing the duration and sequence of events.
: Electric charge is a quantity that determines the participation of a body in electrical interaction.
: Charge amplitude is the largest absolute charge value during oscillations.
: Current strength is the charge passing through the cross section of a conductor per unit time.
: Current amplitude is the largest absolute value of the current during oscillations.
: Maximum speed - the highest speed value during oscillations.
: Maximum acceleration - the highest acceleration value during oscillations.

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.