Wave properties and measurements Practice Questions
Question 1
Q1. Knowledge Recall (2 marks)
Define wave amplitude and state its unit.
Question 2
Q2. Application (3 marks)
Describe how the speed of a sound wave varies with temperature.
Question 3
Q3. Calculation (4 marks)
A wave has a frequency of 5Hz and a wavelength of 2m. Calculate the speed of the wave.
Question 4
Q4. Knowledge Recall (2 marks)
Name the SI unit for sound intensity and state what it represents.
Question 5
Q5. Application (3 marks)
Explain why sound waves can diffract, but light waves generally do not.
Question 6
Q6. Knowledge Recall (2 marks)
State the relationship between the wavelength, frequency, and speed of a wave.
Question 7
Q7. Application (3 marks)
A water wave has a frequency of 10Hz and travels at a speed of 5m/s. Calculate its wavelength.
Question 8
Q8. Knowledge Recall (2 marks)
Define reflection and refraction.
Question 9
Q9. Application (3 marks)
A ray of light passes from air into a glass block. Describe the direction of the refracted ray.
Question 10
Q10. Calculations (4 marks)
A sound wave with an intensity of 100dB enters a room and is absorbed by a curtain. The absorbed intensity is 10dB. Calculate the percentage of sound energy absorbed.