Wave Motion | 3/4/19-3/8/19

Thoth08BigasDrumEvansChalmette by Infrogmation

Summary:

       Sound waves are longitudinal waves, meaning that the energy that they carry travels parallel to the wave. Sound waves are also mechanical waves, which means that they must travel through a medium such as a solid, liquid, or gas. With this, sound waves also travel through different mediums at different speeds. Due to how atoms and molecules are packed tightly together in a solid, sound waves are immediately transferred to the next molecule. Thus, in solids, sound waves can travel very quickly without losing energy. In a liquid, atoms and molecules are touching, but are not fastened to each other as strongly as a solid. In results, some of sound's energy is wasted when pushing the particles around (in a liquid) because they can slide past each other. This is due to how sound cannot travel across gaps between molecules, which can slow a sound wave down. In a gas, molecules are far apart, so for sound to travel, molecules must move a quick distance before they collide with other molecules. Sound energy cannot move as quickly when molecules are not in contact with each other, which is why sound does not travel as fast in gases.

S&EP 2-Developing and Using Models:

       I developed and used models on two different occasions, both involving sound waves. The first one involved drawing different types of sound waves when discussing wave motion. We had to draw a pulse wave, standing wave, and longitudinal wave based on what we were seeing when trying to create the different waves using a slinky. This allowed us to truly understand the motion of the different waves and gave us a better understanding of the topic. We also created more models when discussing how sound waves travel in different states of matter. Which, in result, allowed us to see how sound waves travel and allowed us to understand how sound waves work in the real world.

XCC-Energy and Matter:

       The system that identified this week that involves energy and matter are waves, especially sound waves. All waves carry energy, or else we would not be able to identify them. Those energies could be light energy or sound energy, although all do have a use. Sound energy in specific, must travel through a medium. Medium is the matter that a sound wave and other mechanical waves travel through. So in order for sound to actually be produced, it requires a medium. Both energy and matter play a huge role in waves. Energy is what waves carry and matter is what many waves require to actually be produced. Both are needed for all types of waves to still exist.

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