Sound Waves

Front

What is pitch?

Back

Pitch is how high or low a sound is, which depends on the frequency of the sound wave. Higher frequency results in a higher pitch.

Front

What happens to the pitch of a sound as the distance from the source increases?

Back

The pitch of a sound decreases as the distance from the source increases, which can be observed in the Doppler effect.

Front

What is the speed of sound in air?

Back

The speed of sound in air is approximately 340 m/s.

Front

How do you calculate the wavelength of a sound wave?

Back

Wavelength can be calculated using the formula: Wavelength = Speed of Sound / Frequency.

Front

What is the relationship between amplitude and sound volume?

Back

Higher amplitude corresponds to louder sounds, while lower amplitude corresponds to quieter sounds.

Front

What is the principle behind sonar and echolocation?

Back

Sonar and echolocation use the principle of reflection of sound waves to detect objects.

Front

What is frequency?

Back

Frequency is the number of cycles of a sound wave that occur in one second, measured in Hertz (Hz).

Front

What is the formula to find the frequency of a sound wave?

Back

Frequency (f) can be calculated using the formula: f = Speed of Sound / Wavelength.

Front

What is the Doppler effect?

Back

The Doppler effect is the change in frequency or pitch of a sound wave in relation to an observer moving relative to the source of the sound.

Front

What is the difference between longitudinal and transverse waves?

Back

Longitudinal waves have oscillations in the same direction as the wave travels, while transverse waves have oscillations perpendicular to the direction of wave travel.