# Malaysia SPM Form 5 Physics: Wave

1.1 Oscillation
1.2 Understanding Wave
1.3 Understanding Wave - Calculation
2.1 Wave Phenomena - Reflection and Refraction
2.2 Wave Phenomena - Difraction and Interference
3.1 Sound Wave

# Sound Wave

The SPM Physics Workbook is developed under the One-School.net Free Books Project. The content of this book is strictly follow Malaysia SPM (Sijil Pelajaran Malaysia) syllabus. The aim of this project is to provide a complete electronic supplementary network for students to develop self-learning skills by breaking the spoon-feed rituals and to encourage them to compile educational information from the Internet.

1. Which of the followings are true about sound wave?
I Sound wave is a mechanical wave
II Sound wave is a longitudinal wave
III Sound wave cannot travels in vacuum

I and II only
II and III only
I and III only
I, II and III

2.Which of the following is NOT TRUE about the speed of sound wave in solid, liquid and gas?

Speed of sound in gas < speed of sound in water.
Speed of sound in solid > speed of sound in gas.
Speed of sound in gas > speed of sound in liquid.
Speed of sound in solid > speed of sound in liquid.

3. Ultrasonic is the sound with frequency

Higher than 20Hz
Lower than 20Hz
Higher than 20,000 Hz
Lower than 20,000 Hz

4. A louder sound have

longer wavelength
higher frequency
higher amplitude

5. The pitch of a sound is determined by its
wavelength
frequency
amplitude

6. The sound of a moving train at a distance sound louder at night than that in the day time. This is due to

refraction of sound
reflection of sound
interference of sound
diffraction of sound

7. When a sound wave travels from air into a glass, it is refracted

towards the normal and its velocity increases.
away from the normal and its velocity decreases.
away from the normal and its velocity increases.
towards the normal and its velocity decreases.

8. Two speakers is placed a distance apart of 1.5 m. An audio signal generator is adjusted to a frequency of 600 Hz. When a student walks 3.0 m in front of the speakers, he gets to hear four loud sounds successively in a distance of 3.3 m. Find the wavelength of the wave
0.60m
0.55m
0.65m
0.70m

9. Electronic pulses are transmitted from a ship and are received again in a time interval of 0.2 s when the pulses are reflected back by a big object. If the speed of sound in the sea is 1200 ms-1, what is the distance of the object from the ship?
240m
200m
120m
100m