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Physics - Sound Review Year 8 Flashcards | StudBud

Explore/Physics - Sound Review Year 8

Physics - Sound Review Year 8

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Physics Revision Sound

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Questions 7

Answers

1
Which of the following is NOT true about ultrasound
It can be used in medical scanning
It is a very low frequency sound
It travels at the speed of sound
Bats can use it to detect prey
2
The pitch of a sound is also known as the ...
Frequency of the sound
Wavelength of the sound
Amplitude of the sound
Loudness of the sound
3
Sound travels in air at 340 m/s. An echo takes 4 s from a wall. How far away is the wall?
680 m
85 m
344 m
1360 m
4
Which two statements are correct about sound?
Animals can have different audio ranges
A typical sound wave will have a wavelength of 5 cm
Sound waves sit between red and blue in the colour spectrum
Sound volume is measured in Hertz
5
Which of the following is not true about sound?
Sound is a transverse wave
Sound is just the vibration of particles
Sound travels fastest in solids
Sound requires a medium to travel
6
Sound waves transfer what from one place to another?
Speed
Energy
Vibrations
Music
7
Things that affect the speed of sound. Which statement is NOT true?
Sound will travel around a corner
Sound travels faster at the top of a mountain
A speaker converts electrical energy to sound energy
Sound speeds up in water