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Echoes: How Sound Waves are Reflected and Absorbed
Sound travels in waves, similar to light. If you shine a light onto a mirror the light bounces off the mirror so that the light shines in a different direction. The same is true for sound. Sound waves can reflect off of surfaces, redirecting the waves creating an echo. A gymnasium is a good example of how echoes are produced. The room is large with six hard surfaces, the four walls, floor, and ceiling. A few seconds after you yell you can hear it again because the sound waves bounced off of the six surfaces and back to your ear. In this experiment students will create echoes by yelling in spaces, such as an empty room, gymnasium, and bedroom.
Problem: Students will explore how sound waves are reflected and absorbed by producing echoes.
Materials: Find locations where you can produce an echo:
Author: Melissa Bautista
For more fun and engaging science activities, go to Education.com!
Disclaimer and Safety Precautions
Education.com provides the Science Fair Project Ideas for informational purposes only. Education.com does not make any guarantee or representation regarding the Science Fair Project Ideas and is not responsible or liable for any loss or damage, directly or indirectly, caused by your use of such information. By accessing the Science Fair Project Ideas, you waive and renounce any claims against Education.com that arise thereof. In addition, your access to Education.com's website and Science Fair Project Ideas is covered by Education.com's Privacy Policy and site Terms of Use, which include limitations on Education.com's liability.
Warning is hereby given that not all Project Ideas are appropriate for all individuals or in all circumstances. Implementation of any Science Project Idea should be undertaken only in appropriate settings and with appropriate parental or other supervision. Reading and following the safety precautions of all materials used in a project is the sole responsibility of each individual. For further information, consult your state's handbook of Science Safety.
Echoes: How Sound Waves are Reflected and Absorbed
Sound travels in waves, similar to light. If you shine a light onto a mirror the light bounces off the mirror so that the light shines in a different direction. The same is true for sound. Sound waves can reflect off of surfaces, redirecting the waves creating an echo. A gymnasium is a good example of how echoes are produced. The room is large with six hard surfaces, the four walls, floor, and ceiling. A few seconds after you yell you can hear it again because the sound waves bounced off of the six surfaces and back to your ear. In this experiment students will create echoes by yelling in spaces, such as an empty room, gymnasium, and bedroom.
Problem: Students will explore how sound waves are reflected and absorbed by producing echoes.
Materials: Find locations where you can produce an echo:
- Gymnasium
- Church
- Dance hall
- Banquet hall
- Garage
- Choose at least three locations to produce your echoes. You should choose at least two, large rooms that are empty and a large room filled with furniture.
- Stand at one end of the room and yell out, “Hello”. You can yell out whatever you would like.
- Did you hear an echo?
- Repeat for the remaining locations.
- What was different about the rooms that produced an echo and those that did not?
Author: Melissa Bautista
For more fun and engaging science activities, go to Education.com!
Disclaimer and Safety Precautions
Education.com provides the Science Fair Project Ideas for informational purposes only. Education.com does not make any guarantee or representation regarding the Science Fair Project Ideas and is not responsible or liable for any loss or damage, directly or indirectly, caused by your use of such information. By accessing the Science Fair Project Ideas, you waive and renounce any claims against Education.com that arise thereof. In addition, your access to Education.com's website and Science Fair Project Ideas is covered by Education.com's Privacy Policy and site Terms of Use, which include limitations on Education.com's liability.
Warning is hereby given that not all Project Ideas are appropriate for all individuals or in all circumstances. Implementation of any Science Project Idea should be undertaken only in appropriate settings and with appropriate parental or other supervision. Reading and following the safety precautions of all materials used in a project is the sole responsibility of each individual. For further information, consult your state's handbook of Science Safety.