CAIE IGCSE Physics 3.4.1 Production of sound by vibrating
Practise explaining how vibrating sources produce sound, from loudspeaker cones to air vibrations and pressure variations.
- Syllabus
- 2026–2028
- Course
- Physics 0625
Practise explaining how vibrating sources produce sound, from loudspeaker cones to air vibrations and pressure variations.
Fig. 4.1 shows a loudspeaker that is producing a sound wave in air of frequency 15000 Hz .

Fig. 4.1
Describe how the cone of the loudspeaker produces this sound.
it/cone vibrates any two from:
alternating current (a.c.) (in coil/wire) or alternating magnetic field (neighbouring) air vibrates or vibrations passed on (producing) compressions and rarefactions/vibrations parallel to energy transfer vibrating at 15000 Hz
B1
B2