Physics Waves and Harmonics Quiz

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Questions and Answers

What type of wave requires a medium to travel?

  • Light wave
  • Sound wave (correct)
  • Radio wave
  • Electromagnetic wave

Which of the following statements describes a transverse wave?

  • An example is a sound wave in air.
  • It can only travel through solids.
  • An example is waves on a string. (correct)
  • Oscillations are parallel to the direction of wave travel.

What is represented by the variable $A$ in the harmonic wave equation $d = A ext{sin}(wt - kx)$?

  • Wavelength
  • Frequency
  • Amplitude (correct)
  • Wave velocity

Which equation accurately represents wave velocity?

<p>$v = rac{ω}{k}$ (C)</p> Signup and view all the answers

How is the angular frequency $ω$ calculated?

<p>$ω = rac{2 ext{π}}{T}$ (A), $ω = 2 ext{π}f$ (C)</p> Signup and view all the answers

What defines a plane progressive harmonic wave?

<p>It involves simple harmonic motion of all particles. (D)</p> Signup and view all the answers

What does the term $λ$ represent in wave equations?

<p>Wavelength (D)</p> Signup and view all the answers

What is the relationship between particle velocity $v_p$ and wave velocity $v$?

<p>$v_p = -v rac{d}{dx} d$ (B)</p> Signup and view all the answers

What does the equation $d = A ext{sin} 2 ext{π} ig( rac{t}{T} - rac{x}{λ}ig)$ represent?

<p>The harmonic motion of a wave (A)</p> Signup and view all the answers

In which form does the wave propagation equation typically appear?

<p>$ωt + kx = constant$ (A), $ωt - kx = constant$ (D)</p> Signup and view all the answers

Flashcards

Mechanical Wave

Waves that need a medium like air, water, or a string to travel. Think of sound waves vibrating air molecules.

Non-Mechanical Wave

Waves that can move through a vacuum, like light waves traveling through space. Think of light from the sun reaching Earth.

Transverse Wave

Waves where particles move up and down (perpendicular) to the direction the wave travels. Think of a wave in a rope.

Longitudinal Wave

Waves where particles move back and forth (parallel) to the direction the wave travels. Think of sound waves compressing and expanding air.

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Equation of Harmonic Wave

The equation that describes the displacement of a point in a wave at a specific time and position.

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Velocity of Wave

Describes how fast a wave is moving. It's calculated as wavelength divided by the period or wavelength multiplied by the frequency.

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Particle Velocity

The speed at which particles in the medium oscillate. It is related to the amplitude and angular frequency of the wave.

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Relation Between Particle Velocity and Wave Velocity

The relationship between particle velocity and wave velocity. Particle velocity is proportional to wave velocity and the rate of change in displacement with respect to position.

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Maximum Particle Velocity

The highest speed a particle in the wave reaches during its oscillation. It's directly proportional to the amplitude and angular frequency.

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Plane Progressive Harmonic Wave

A wave where all particles in the medium move in a simple harmonic motion (SHM). It has a sinusoidal shape.

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