How would you describe sound waves in a few words?
Sound waves are vibrations that travel through the air. When sound waves reach our ears, our brains interpret them as noises and music. Different frequencies of sound waves create different types of sound.
Sound Waves: More Than Just Noise
Amplitude: The size of a sound wave, determined by how loud it is. Frequency: The number of times a sound wave repeats over a given period of time. Wavelength: The distance between two successive crests or troughs in a sound wave.
What is your opinion on sound waves?
- Sound waves are fascinating and I want to learn more about them.
- I think sound waves are complicated and hard to understand.
- I believe sound waves are an important part of the environment.
- Sound waves don't really interest me.
A dolphin can produce sounds at frequencies up to 150,000 Hz, which is much higher than humans can hear. Sound waves can travel through gases, liquids and solids. Singing bowls are used to create sound waves that are said to help with relaxation and meditation.
Draw / write: What are some common examples of sound waves we encounter in everyday life?
Draw / write: How can we use mathematical representations to describe sound waves?
What is the relationship between the amplitude of a wave and its energy?
What mathematical models can be used to represent the energy of sound waves?