EASY
Upper Secondary-IGCSE
IMPORTANT
Earn 100

State what we call a reflected sound.

Important Questions on Sound

EASY
Upper Secondary-IGCSE
IMPORTANT
Physics for Cambridge IGCSE workbook>Chapter 12 - Sound>Exercise 12.1>Q 2
State the speed of sound in air.
EASY
Upper Secondary-IGCSE
IMPORTANT
Physics for Cambridge IGCSE workbook>Chapter 12 - Sound>Exercise 12.1>Q 3
State the normal hearing range for humans.
EASY
Upper Secondary-IGCSE
IMPORTANT
Physics for Cambridge IGCSE workbook>Chapter 12 - Sound>Exercise 12.1>Q 4
Arun can hear sounds with frequencies up to 20 kHz. His grandfather cannot hear sounds above 12 kHz. Which two of the following sound frequencies will Arun hear, but his grandfather will not?
MEDIUM
Upper Secondary-IGCSE
IMPORTANT
Physics for Cambridge IGCSE workbook>Chapter 12 - Sound>Exercise 12.1>Q 5
You can probably hear notes of higher pitch than your teacher. Describe how you would show this in the school laboratory.
EASY
Upper Secondary-IGCSE
IMPORTANT
Physics for Cambridge IGCSE workbook>Chapter 12 - Sound>Exercise 12.1>Q 6
Calculate how long a sound will take to travel 1 km in air. Give your answer in seconds, to one decimal place.
EASY
Upper Secondary-IGCSE
IMPORTANT
Physics for Cambridge IGCSE workbook>Chapter 12 - Sound>Exercise 12.1>Q 6
Calculate how far the sound will travel in 5 s in the air.
MEDIUM
Upper Secondary-IGCSE
IMPORTANT
Physics for Cambridge IGCSE workbook>Chapter 12 - Sound>Exercise 12.1>Q 8
In an experiment to measure the speed of sound in glass, a pulse of sound is sent into a glass rod, 14.0 m in length. The reflected sound is detected after 5.6ms (0.0056 s). Calculate the speed of sound in glass.
EASY
Upper Secondary-IGCSE
IMPORTANT
Physics for Cambridge IGCSE workbook>Chapter 12 - Sound>Exercise 12.2>Q 1
State what kind of wave sound is.