Production and Travel of Sound Waves (Leaving Cert Physics): Quizzes
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Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What is the fundamental source of all sound?
What is the fundamental source of all sound?
Vibrating objects
What does one hertz (Hz) represent?
What does one hertz (Hz) represent?
One vibration per second
What is the human audible frequency range?
What is the human audible frequency range?
20 Hz to 20,000 Hz
What are sounds above 20,000 Hz called?
What are sounds above 20,000 Hz called?
Ultrasound
Why is sound classified as a mechanical wave?
Why is sound classified as a mechanical wave?
It requires matter to travel through
Which wave property allows you to hear someone calling from around a corner?
Which wave property allows you to hear someone calling from around a corner?
Diffraction
How do particles move in a longitudinal sound wave?
How do particles move in a longitudinal sound wave?
Parallel to wave direction
What are compressions in a sound wave?
What are compressions in a sound wave?
Areas of higher pressure & density
How does amplitude affect sound?
How does amplitude affect sound?
Greater amplitude = louder sound
What does the vacuum experiment with a bell prove?
What does the vacuum experiment with a bell prove?
Sound needs a medium to travel
In which type of material does sound travel fastest?
In which type of material does sound travel fastest?
Solids
What is the speed of sound in air at compared to ?
What is the speed of sound in air at compared to ?
343 m/s at , 331 m/s at