Wave properties and wave graphs Quiz
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5 questions, one answer each
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1. A wave has a period of 0.020 s. What is its frequency?
- A. 0.020 Hz
- B. 20 Hz
- C. 50 Hz
- D. 200 Hz
2. Which statement describes a longitudinal wave?
- A. The oscillations are perpendicular to the direction of energy transfer
- B. The oscillations are parallel to the direction of energy transfer
- C. It can be plane polarised
- D. It cannot transfer energy
3. A wave of frequency 250 Hz has wavelength 1.4 m. What is its speed?
- A. 180 m s⁻¹
- B. 0.0056 m s⁻¹
- C. 175 m s⁻¹
- D. 350 m s⁻¹
4. In a progressive sound wave, what is the molecular displacement at the centre of a rarefaction?
- A. Maximum forwards
- B. Maximum backwards
- C. Zero
- D. Equal to the wavelength
5. A student wants a graph from which wavelength can be read directly. Which should she plot?
- A. Displacement against distance at one instant
- B. Displacement against time for one point
- C. Pressure against frequency
- D. Amplitude against time