Describe a sound wave in one word?
"MS-PS4-1. Use mathematical representations to describe a simple model for waves that includes how the amplitude of a wave is related to the energy in a wave."
The Wonders of Sound Waves
Sound waves are vibrations that travel through a medium, like air or water. Sound can be heard when these waves reach a person's ear. Frequency determines the pitch of a sound, while amplitude determines its volume.
frequency: The number of times per second that a wave repeats itself. amplitude: The height or depth of a wave, which corresponds to its volume. medium: A substance through which a sound wave can travel, such as air or water.
Humans can only hear sound waves between 20 Hertz and 20 000 Hertz. Sound travels faster in air than it does in water. The loudest sound ever recorded was a rocket launch in 1970 and it was 180 dB!
Work together in pairs: What is the relationship between frequency and the pitch of a sound wave?
Work together in pairs: What is the relationship between amplitude and energy in a wave?
Brain break: Draw a picture of a house made out of candy
What is the speed of sound?
- 100 m/s
- 1000 m/s
- 10000 m/s
- 342 m/s
What is the unit of frequency?
What type of wave is sound?
- Transverse Wave
- Longitudinal Wave
- Tidal Wave
- Reflection Wave
What is the wavelength of a sound wave?
- The speed of the wave divided by the frequency
- The frequency of the wave divided by the speed
- The speed of the wave multiplied by the frequency
- The frequency of the wave multiplied by the speed
What is the source of a sound wave?
- Air Pressure