Mastery Check #5 - Wave Interactions
Reflected, Absorbed, Transmitted, or Refracted
Reflection: Waves bounce back from the material they encounter. A good example of this would be light reflecting or bouncing back from a white surface like snow. Light reflects off of a mirror when it hits it. Sound could bounce back or be reflected from a surface. Absorption: Waves are absorbed by a substance. When light hits a black material, most of that light is absorbed by the material which makes it heat up. This is why you will feel very hot if you wear a black shirt on a sunny summer day. Your shirt is absorbing light which causes it to heat up. Sound could be absorbed by foam which would make the sound not travel far. If you want to soundproof a room, you often put foam on the walls because it absorbs the sound and does not transmit or reflect it. Transmit: This is when a material lets waves pass through the substance. This could include a window transmitting light which makes your house brighter inside, or sound being transmitted through a substance. Refraction: When light is transmitted through as substance, it will often bend. This is called refraction. This is why objects in water appear to bend, like the pencil on the right. |
Examine the situations below to see how waves interact with various substances. Notice that there are light waves as well as mechanical waves like sound and seismic waves from earthquakes.
If you wait longer than five school days to make-up this mastery check then these additional assignments will be used to make sure that you are ready for the quiz. Tier 1
Copy and answer these questions in your notes:
You will complete Tier 1 and then complete the following.
Copy this question and write your answer in your notes using at least 100 words and less than 150 words. This needs to be in your own words.
Complete Tier 1 and 2 and then do the following.
Copy and answer these questions in your notes:
- If you want a house to survive an earthquake and not be damaged, How does the house need to interact with the earthquake waves that hit it?
- What are 2 examples each of the four different interactions of waves? You can not use examples that are on this page.
- Why can we see visible light and not ultraviolet or infrared?
- If you want to make your home energy efficient, what can you do and what does this have to do with waves?
You will complete Tier 1 and then complete the following.
Copy this question and write your answer in your notes using at least 100 words and less than 150 words. This needs to be in your own words.
- How did scientists discover that the outer-core of the earth was a liquid?
Complete Tier 1 and 2 and then do the following.
- Make a model that shows how waves can reflect and refract, and how we can control the process.