Characteristics of Sound and Frequency Limits (Leaving Cert Physics): Flashcards
📚Flashcards
Practise the cards
13 cards from this deck
ShowHide
Practise the cards
13 cards from this deck
Two main characteristics of sound waves
Two main characteristics of sound waves
Loudness and pitch
What loudness depends on
What loudness depends on
Amplitude of the sound wave
Effect of larger amplitude on sound
Effect of larger amplitude on sound
Louder sound (carries more energy)
What pitch depends on
What pitch depends on
Frequency of the sound wave
Effect of higher frequency on pitch
Effect of higher frequency on pitch
Higher pitch
Effect of lower frequency on pitch
Effect of lower frequency on pitch
Lower pitch
Human frequency limits of audibility
Human frequency limits of audibility
to
Define ultrasonic frequencies
Define ultrasonic frequencies
Frequencies above
Are ultrasonic frequencies audible to humans?
Are ultrasonic frequencies audible to humans?
No, inaudible to humans
Purpose of diagnostic ultrasound
Purpose of diagnostic ultrasound
Produce images of internal body features/organs
Use of Doppler ultrasound
Use of Doppler ultrasound
Detect movement/measure blood flow velocity
Advantages of ultrasound over X-rays
Advantages of ultrasound over X-rays
Non-invasive and non-ionising
How ultrasonic cleaners work
How ultrasonic cleaners work
Create cavitation bubbles that produce cleaning shockwaves