Practise MYP Physics questions on 4.3 Sound Waves and review the explanations to check your understanding.
Use these questions for topic practice and to find ideas you want to revisit in your notes or lessons.
In a longitudinal sound wave, a compression is a region of high pressure, while a rarefaction is a region of __________ pressure.
What generally happens to the upper limit of the human hearing range (typically ) as a person gets older?
A researcher measures the time it takes for sound to travel between two points apart. If the recorded time is , what is the calculated speed of sound?
How does an increase in air temperature affect the speed of sound?
Which physical property of a sound wave is most closely associated with the human perception of pitch?
low
zero
constant
infinite
It decreases, meaning high-frequency sounds become harder to hear
It increases, allowing them to hear higher pitches
It stays exactly the same throughout life
It fluctuates based on the speed of sound in the environment
The speed remains constant as it only depends on frequency
The speed decreases because the air becomes less dense
The speed increases because particles have more kinetic energy
The speed decreases because the wavelength increases
Phase
Frequency
Amplitude
Velocity
