Waves and Periodic Motion

What is the definition of amplitude in the context of periodic motion?

• The displacement from the equilibrium position

• The time it takes for one cycle

• How high the peaks are or how low the troughs are

• The rate of cycles per second

What is the formula for calculating period (T) in periodic motion?

• T = 1/f

• f = 1/T

• w = 2π/T

• w = 2πf

What does angular frequency (w) represent in periodic motion?

• The rate in how many radians per second

• The maximum displacement

• The time it takes for one cycle

• The displacement from the equilibrium position

In simple harmonic motion, what is the equation for displacement as a function of time?

• x = A·cot(wt)

• x = A·tan(wt)

• x = A·sin(wt)

• x = A·cos(wt)

What is the characteristic of a transverse wave?

• Wave displacement is parallel to the direction of motion

• Wave displacement is perpendicular to the direction of motion

• Wave displacement is circular

• Wave displacement is random

What is the formula for velocity (v) in relation to frequency (f) and wavelength (λ)?

• v = f/λ

• v = λ/f

• v = fλ

• v = λ+f

What is the result of constructive interference of waves?

• Diminished amplitude

• Greater amplitude

• No change in amplitude

• Complete cancellation

What is resonance in the context of waves?

• When waves interfere destructively

• When waves oscillate at maximum amplitude

• When waves change direction

• When waves reflect off a surface

What is the phenomenon of refraction in waves?

• The resonance of waves

• The bending of waves when meeting a boundary between mediums

• The interference of waves

• The spreading of waves around edges

What is the purpose of diffraction in waves?

• To amplify the waves

• To cancel out the waves

• To spread the waves around obstacles

• To increase the frequency of the waves