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¿Por qué algunos sonidos son agudos y otros son graves?
Sound, Waves, & Communication Unit | Lesson 4 of 4

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¿Por qué algunos sonidos son agudos y otros son graves?

Sound, Waves, & Communication Unit | Lesson 4 of 4
Lesson narration:
English Spanish
Scroll for prep
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CONVERSEMOS:

¿Qué opinas: qué hace que ciertos sonidos sean más GRAVES y otros sean más AGUDOS?

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Video trouble?

Obtén esta hoja de trabajo y contesta las dos preguntas sobre las que acabas de platicar. (Vas a contestar las otras preguntas más adelante).

High vs low pitch

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CONVERSEMOS: ¿Cómo describirías la diferencia entre las ondas sonoras de un sonido agudo y las ondas sonoras de un sonido grave?

High vs low pitch

Encierra en un círculo que palabras usarías para describir la onda sonora de un tono agudo comparada con la onda sonora de un tono grave.

Worksheet spread out vs scrunched

Nota: No olvides jugar con el osciloscopio virtual que incluimos en los Extras.

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CONVERSEMOS:

¿Cuál de estos es el sonido MÁS agudo? Explica cómo lo sabes.

Oscilloscope images

CONVERSEMOS:

¿Cuál de estos es el sonido MÁS grave? Explica cómo lo sabes.

Oscilloscope images

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Slide Image

onda sonora


1 de 8

la manera en la que los sonidos viajan de un lugar a otro, en un patrón de arriba a abajo
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Slide Image

osciloscopio


2 de 8

una herramienta que puede mostrarnos cómo se ven las ondas sonoras

tono


3 de 8

lo agudo o grave que es un sonido cuando lo escuchas
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longitud de onda


4 de 8

la distancia entre dos puntos de una onda
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frecuencia


5 de 8

una medida del número de ondas que pasan cierto punto en cierto tiempo

experimento


6 de 8

una prueba que se usa para descubrir más información sobre una pregunta
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amplitud


7 de 8

la altura de una onda
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volumen


8 de 8

lo fuerte que es un sonido, se mide en la altura de una onda sonora
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Exploration
Relaxing 3 Hour Video of California Ocean Waves by MoneySavingVideos , used under CC BY
three girls laughing and walking by Mat Hayward
girl singing karaoke by Elnur
"the mosquito" by LadyofHats , used under CC BY
17400 Hz 17.4 kHz Sine Wave Sound Frequency Tone Mosquito Tone by Beeps, Chirps and Noise/EpicPuzl781
speaker system by MeemiePhoto
7 Eleven Fukushima Shinchi Town Shop by Kuha455405 , used under CC BY-SA
assembling circuit components by Robert Wydro Studio
black speaker by gualtiero boffi
girl covering her ears by Dean Drobot
hands holding cell phone by Africa Studio
students sitting in class by Rawpixel.com
girl playing flute by aboikis
man playing tuba by Ollyy
man playing flute by charles wong , used under CC BY
young boy playing tuba by jaishaunglover11
man playing guitar isolated on black background by Pressmaster
Schlieren by NASA , used under Public Domain
schlieren effects: book close by Mike Hargather
schlieren effects: audio/sound by Mike Hargather
schlieren effects: bottle rocket by Mike Hargather
ripples in a pond by IRIS EPO
visual: schlieren effects by Mike Hargather
oscilloscope by rwg42985
oscilloscope generator by Academo , used under Public Domain
Other
trombone player by Ollyy
Credits

Featured Reviews

“I love the videos and that I can pause and play as I go. It is nice to add explanation or to give my kids the chance to finish pictures they are drawing.”
· · Teacher
“Kids loved playing with the oscilloscope. The rope activity really made them understand the different wavelengths for high and low pitches.”
· Sherri · Teacher
“We enjoyed the explanation of vibrations, especially seeing the oscilloscope in action. The explanations using musical instruments were very practical and useful. Thank you!”
· Karen · Homeschooler
“The kids totally understood the difference between pitch and volume! It reinforced our Science chapter for the week on energy, including sound energy!”
· Marjie · Teacher
“The class loved the video and the information about the Mosquito device and whether or not they could hear the high-pitched sound. The activity worked well also.”
· Patty · Admin
“Kids were fascinated to see the images of the sound waves coming off the object like ripples in a pond. Next day it rained and as they saw they drips they all correlated to drip ripples to the sound waves.”
· Kenneth · Teacher
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· Rachel · Teacher
“All three sound wave lessons were a hit (I think I messed up and didn't respond when you asked about the first two. We did all three and the students were SOOOO engaged. I just finished conferences and so many parents said they were coming home both weeks telling them all about sound and the experiments. The students brought supplies to try to improve their cup phones in class and I guess they continued trying to refine them at home. In lesson three we used the online oscilloscope and that was another hit! The effort needed to make the ropes look like high and low soundwaves really brought home the difference of fast and slow vibrations!”
· Christina · Teacher
“The best part was when students connected what they learned in mysteries 1 and 2 to the concepts presented in mystery 3. Thank you!”
· Karen · Teacher
“My students enjoyed the really high pitched sound that I couldn't hear. : ) The visual comparison of the sound waves was very effective. I teach 1st grade so I didn't use the end of the video but the first half was wonderful and appropriate for their level.”
· Kimberly · Admin
“So many parts of this lesson were really engaging for the students! We really enjoyed the on-line oscilloscope!! The "Bouncing Balls and Emojis" were fun! We found out that it's really hard to be completely silent! Even our kitchen refrigerator couldn't keep quiet!”
· · Homeschooler
Lesson narration:
English Spanish

Grade 4

Sound, Waves, & Communication

Sound Waves & Wavelength

4-PS4-1

Activity Prep

Print Prep
In this lesson, students discover that sound is a wave. In the activity, Making Waves, students draw the waves that different sounds make using a virtual oscilloscope, a machine that shows images of sound waves. Then they vibrate a rope to make waves that look like the ones made by the oscilloscope.
Preview activity

I have a Mystery Pack

Be The Vibration worksheet 30 copies
Be The Vibration Answer Key teacher-only resource 1 copy
Sound Vibrations worksheet 30 copies
Sound Vibrations Answer Key teacher-only resource 1 copy
Clotheslines
Cut to 12-15 foot lengths. Jump ropes or telephone cords will also work.
Details
60 feet
Prep Instructions

For the rope activity, you’ll need a smooth, hard floor where you can stretch out a rope that’s 12 to 15 feet long. Students can take turns making waves. We suggest having at least one rope for each group of 8 students.

Prepare the Rope or Clothesline

For each group of students, you’ll need a flexible rope or clothesline measuring 12 to 15 feet in length.

Virtual Oscilloscope Extension (Optional)

In our Extensions section, we include a link to an online oscilloscope that you can use to extend your exploration of the patterns made by sound. Using this tool, students can experiment with different sounds and see the patterns that the waves make.

Exploration

30 mins

Hands-On Activity

30 mins

Grade 4

Sound, Waves, & Communication

Sound Waves & Wavelength

4-PS4-1

Slow internet or video problems?
Credits
 
Waves Tx Lesson 4: Why are some sounds high and some sounds low?

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