WorksheetsSound waves
Total questions: 10
Worksheet time: 10mins
What type of wave is sound?
transverse
longitudinal
electromagnetic
Through which of the following can sound not travel?
air
vacuum
water
What is the approximate speed of sound in air?
330 m/s
1500 m/s
5000 m/s
Which of the following best describes a sound wave with high amplitude?
The sound wave is loud
The sound wave is high pitched
The sound wave is above the cloud
What is the range of normal human hearing?
2 Hz to 2000 Hz
20 Hz to 2000 Hz
20 Hz to 20 000 Hz
What is ultrasound?
Sound waves above the range of human hearing
Sound waves within the range of human hearing
Sound waves below the range of human hearing
A sonar system on a boat sends an ultrasound pulse towards the seabed. The pulse is reflected, and it is detected 0.2 s later by the system. Calculate the depth of water if the speed of sound in water is 1 480 m/s.
148 m
296 m
14 800 m
A carpet salesperson uses an ultrasonic device to measure the length of a room. The device shows that the distance from one wall to the opposite wall is 6.5 m. If the speed of ultrasound in air is 340 m/s, how long does it take for the ultrasound to travel to the far wall and back again?
0.019 s
0.038 s
4420 s
What is the name for an area of low pressure in a longitudinal wave?
compression
rarefaction
equilibrium
What does the area pointed by the arrow in the diagram represent?
compression
rarefaction
equilibrium
