CAIE IGCSE Physics 3.4.7 Changes in Amplitude and Frequency Questions
Practise linking wave features to what is heard, deciding how amplitude changes loudness and frequency changes pitch in sound waves.
- Syllabus
- 2026–2028
- Course
- Physics 0625
Exam points
- State that amplitude controls loudness while frequency controls pitch, and interpret changes in loudness and pitch independently from wavelength or speed.
CAIE IGCSE Physics 3.4.7 Changes in Amplitude and Frequency Questions question 1
A sound wave travels through air. Fig. 6.1 shows a pressure-time graph for the air at one place.
Fig. 6.1
The sound becomes louder and of lower pitch.
State what happens to:
the amplitude of the sound
the frequency of the sound.
All question bank results loaded