Question

indefinite pitches - noise - can have high or low sounds.
○ true
○ false

question 6

larger instruments tend to have a lower sound, while smaller instruments tend to have a higher sound.
○ true
○ false

Explanation:

First Question (Indefinite pitches - noise - can have high or low sounds)

Indefinite - pitched sounds (noise) still have perceived high - low (pitch - like) qualities based on frequency components, so they can be perceived as high or low in sound.

Question 6 (Larger instruments tend to have a lower sound, while smaller instruments tend to have a higher sound)

Larger instruments generally have longer vibrating parts (strings, air columns, etc.), which produce lower - frequency (lower - pitched) sounds. Smaller instruments have shorter vibrating parts, producing higher - frequency (higher - pitched) sounds (e.g., a tuba vs. a trumpet, a bass vs. a violin).

Answer:

True