Properties of Waves and Introduction to Signals
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Questions and Answers

What is the definition of a wave?

  • A disturbance that travels in a medium from one point to another symmetrically in a given amount of time (correct)
  • A disturbance that travels in a medium with a circular motion
  • A disturbance that travels in a straight line through a medium
  • A disturbance that travels in a medium with an irregular path

What is the difference between sound waves and light waves?

  • Sound waves travel faster than light waves
  • Light waves need a medium to travel, whereas sound waves do not require a medium
  • Sound waves need a medium to travel, whereas light waves do not require a medium (correct)
  • Light waves travel slower than sound waves

What are the two main types of waves?

  • Mechanical and Electromagnetic waves
  • Longitudinal and Transverse waves (correct)
  • Pulse and Periodic waves
  • Circular and Elliptical waves

What does the term 'wavelength' refer to in the context of waves?

<p>Total distance between two consecutive crests and troughs (C)</p> Signup and view all the answers

What does amplitude represent in the context of a wave?

<p>The total displacement of a wave from its resting position (C)</p> Signup and view all the answers

What is the formula for the speed/velocity of a wave?

<p>$speed = wavelength * frequency$ (C)</p> Signup and view all the answers

Which property of waves measures the total number of waves passing through a definite point in a given period?

<p>Frequency (B)</p> Signup and view all the answers

What instrument is used to measure the frequency of a vibrating or rotating object?

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

What is the SI unit of wavelength?

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

The time period is defined as the time a particle of a medium takes to make a whole vibrational cycle and is measured in which units?

<p>Seconds (s) (C)</p> Signup and view all the answers

What is the formula for calculating wavelength?

<p>$\lambda = v/f$ (B)</p> Signup and view all the answers

The speed of a wave is defined as the total distance covered by a point on the wave in a specific period. What is the SI unit of speed?

<p>$m/s$ (D)</p> Signup and view all the answers

What is the symbol used to denote wavelength?

<p>$\lambda$ (A)</p> Signup and view all the answers

What property of waves measures the intensity or strength of the wave?

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

What does the relation between wavelength, speed, and frequency indicate for an electromagnetic wave propagating via vacuum?

<p>The relation indicates $f = c/ \lambda$. (A)</p> Signup and view all the answers

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