Question

1. what does amplitude determine in a sound wave?

a. speed
b. pitch
c. length
d. loudness

Explanation:

• Amplitude is related to the energy of a sound wave.
• Higher amplitude means more energy and louder sound.
• Speed of sound depends on medium (e.g., air, water).
• Pitch is related to frequency (number of vibrations per second).
• Length is not a characteristic directly determined by amplitude for a sound wave in this context.

Answer:

d. Loudness