Page 41 - SP015 Past Years PSPM Chapter 6 -14 Ver 2020

PSPM SP015

PSPM CHAPTER 10: MECHANICAL AND SOUND WAVES
___________________________________________________________________________

Properties of Waves ~ Progressive Wave

PSPM JAN 1999/2000 SF035/2 No. 2(a)(i)

1. A wave produced on a rope has amplitude 2.0 cm, wavelength 1.2 m, and speed
-1
6.0 m s in the positive-x direction. What is its period, frequency, angular frequency,
and wave number?
[2 m]

PSPM JAN 2000/2001 SF035/2 No. 9(a), (b)

2. (a) State three differences between stationary wave and progressive wave. [3 m]

(b) A progressive wave equation is as follows:

y = 15 sin (3t – 0.3x)

where x and y are in meter and t is in second.

Calculate the amplitude, wavelength, angular frequency, frequency, period, and
the speed of wave.
[6 m]

PSPM JUN 2000/2002 SF035/2 No. 2

3. A progressive wave is represented by equation

y = 10 sin (20t – x)

State the direction of the wave propagation. [1 m]

PSPM JUN 2000/2002 SF035/2 No. 9(c)

4. The following equation represents a wave motion:

 x 
y  4 sin 314t  
.
0
 . 0 15 
where y and x are in meter and t is in second.

(a) Calculate the wavelength. [2 m]
(b) Calculate the speed of wave. [2 m]
(c) State the direction of wave propagation. [1 m]
(d) Determine the phase difference between two points at a distance of 0.45 m. [1 m]

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