Waves Flashcards
What type of wave is Sound?
Sound is a mechanical, longitudinal wave.
What does Sound need to Travel?
Sound needs a substance to travel through and travels by making particles vibrate.
What is the upper limit of human hearing?
20 KHS
What are some uses of Ultrasound?
Medical scans, Medical Treatments, Non Destructive testing.
What is a Transducer?
Emitter and receiver of sound waves.
What are some advantages of Ultrasound?
Reflected at the boundary, Harmless.
What else can ultrasound be used for? (kidney)
To break up Kidney stones by vibrating them.
How do you find the Distance travelled by a wave?
Speed of ultrasonic wave X Time.
What is absorption?
Dampen sound and take the energy out of sound.
What is transmission?
Moving from one thing to another.
What is Reflection?
Hitting a surface and Rebounding.
What is a Seismometer?
A piece of technology that measures any size of eathquakes.
What are the features of a P wave?
- Longitudinal
- fast moving
- travel through solids and liquids
What are the properties of an S wave?
- transverse
- slow moving
- travel through solids only
