You get to find out how waves can be reflected or refracted. Perform experiments on refraction in order to demonstrate Snells law.
After completing this tutorial, you will be able to complete the following:
How do we hear sounds?
~ Sound occurs as a result of vibration. We hear sounds through the transmission of vibrations through air into our ears.
Explain how projecting our voice into a cone-shaped piece of paper makes our voice sound louder.
~ By making a cone out of a piece of paper and then projecting our voice into it, the vibrations created by the sound of our voice are contained and radiate in a single direction rather than spreading out into the environment.
Why do we hear the sound of the ocean when we listen to a conch shell?
~ A conch shell's shape is similar to that of a cone. However, it is not open at one end. Environmental noise that enters the shell reflects off the shell's walls and exits where it entered. To us, the reflected environmental vibrations sound like the ocean.
|Approximate Time||2 Minutes|
|Pre-requisite Concepts||Students should have a general understanding of an obstacle, a reflection, and a sound.|
|Type of Tutorial||Animation|
|Key Vocabulary||obstacle, reflection, sound|