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Transcript of MAY 12, 2014 Homework: Read pages 15-16 (Stop at Longitudinal Wave) in Sound and Light textbook-...
![Page 1: MAY 12, 2014 Homework: Read pages 15-16 (Stop at Longitudinal Wave) in Sound and Light textbook- Define bold terms. -Unit vocabulary sheet due Friday Do.](https://reader034.fdocuments.net/reader034/viewer/2022051620/56649f135503460f94c26cec/html5/thumbnails/1.jpg)
MAY 12, 2014Homework: Read pages 15-16 (Stop at Longitudinal Wave) in Sound and Light textbook- Define bold terms.
-Unit vocabulary sheet due Friday
Do Now:
• Write down homework
• Open textbook to pg. 14
• Open notebook to page 30
![Page 2: MAY 12, 2014 Homework: Read pages 15-16 (Stop at Longitudinal Wave) in Sound and Light textbook- Define bold terms. -Unit vocabulary sheet due Friday Do.](https://reader034.fdocuments.net/reader034/viewer/2022051620/56649f135503460f94c26cec/html5/thumbnails/2.jpg)
What are Waves?
![Page 3: MAY 12, 2014 Homework: Read pages 15-16 (Stop at Longitudinal Wave) in Sound and Light textbook- Define bold terms. -Unit vocabulary sheet due Friday Do.](https://reader034.fdocuments.net/reader034/viewer/2022051620/56649f135503460f94c26cec/html5/thumbnails/3.jpg)
A wave is a disturbance that transfers energy from place to place.
How does a wave travel?
![Page 4: MAY 12, 2014 Homework: Read pages 15-16 (Stop at Longitudinal Wave) in Sound and Light textbook- Define bold terms. -Unit vocabulary sheet due Friday Do.](https://reader034.fdocuments.net/reader034/viewer/2022051620/56649f135503460f94c26cec/html5/thumbnails/4.jpg)
Medium: The material that a wave travels through
• Solids- Like ropes
• Liquids- Such as water-
Water waves use the medium of the surface of the water to travel.
![Page 5: MAY 12, 2014 Homework: Read pages 15-16 (Stop at Longitudinal Wave) in Sound and Light textbook- Define bold terms. -Unit vocabulary sheet due Friday Do.](https://reader034.fdocuments.net/reader034/viewer/2022051620/56649f135503460f94c26cec/html5/thumbnails/5.jpg)
Gases- Like air-
For Sound Waves
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MAY 13, 2014
Homework: Work on Unit Vocabulary Sheet- Due Friday Work on Vocabulary Card
Do Now: Write Down Homework Open notebook to pg. 30 Open textbook to pg. 15
![Page 7: MAY 12, 2014 Homework: Read pages 15-16 (Stop at Longitudinal Wave) in Sound and Light textbook- Define bold terms. -Unit vocabulary sheet due Friday Do.](https://reader034.fdocuments.net/reader034/viewer/2022051620/56649f135503460f94c26cec/html5/thumbnails/7.jpg)
HOW ARE WAVES CREATED?
Waves are created when a source of energy causes a medium to vibrate.
![Page 8: MAY 12, 2014 Homework: Read pages 15-16 (Stop at Longitudinal Wave) in Sound and Light textbook- Define bold terms. -Unit vocabulary sheet due Friday Do.](https://reader034.fdocuments.net/reader034/viewer/2022051620/56649f135503460f94c26cec/html5/thumbnails/8.jpg)
A Vibration- is a repeated back and fourth or up and down motion
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WAVES AND ENERGY Waves travel through a medium, but do they carry the medium itself along with it as it travels?
– Look at Figure 1 on pg. 15- What happens to the top of the wave over time?
-A wave moves through the medium (water), but it does not carry the medium along with it.
![Page 10: MAY 12, 2014 Homework: Read pages 15-16 (Stop at Longitudinal Wave) in Sound and Light textbook- Define bold terms. -Unit vocabulary sheet due Friday Do.](https://reader034.fdocuments.net/reader034/viewer/2022051620/56649f135503460f94c26cec/html5/thumbnails/10.jpg)
TRANSVERSE WAVES
Waves that move the medium at right angles to the direction that the waves are traveling.
-Move in one direction- Waves that move up and down or side to side.
-Waves are classified according to how they move
![Page 11: MAY 12, 2014 Homework: Read pages 15-16 (Stop at Longitudinal Wave) in Sound and Light textbook- Define bold terms. -Unit vocabulary sheet due Friday Do.](https://reader034.fdocuments.net/reader034/viewer/2022051620/56649f135503460f94c26cec/html5/thumbnails/11.jpg)
Crest- Highest parts of the wave
Trough- The lowest part of the wave
![Page 12: MAY 12, 2014 Homework: Read pages 15-16 (Stop at Longitudinal Wave) in Sound and Light textbook- Define bold terms. -Unit vocabulary sheet due Friday Do.](https://reader034.fdocuments.net/reader034/viewer/2022051620/56649f135503460f94c26cec/html5/thumbnails/12.jpg)
![Page 13: MAY 12, 2014 Homework: Read pages 15-16 (Stop at Longitudinal Wave) in Sound and Light textbook- Define bold terms. -Unit vocabulary sheet due Friday Do.](https://reader034.fdocuments.net/reader034/viewer/2022051620/56649f135503460f94c26cec/html5/thumbnails/13.jpg)
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MAY 14, 2014~Homework:
Read /review the words &
diagrams on pages 18-21 in T.B
~Do Now~ Write down homework Open textbooks to page 16, Open notebooks to pg. 31.
Title 31- Other types of waves Read pg. 16- Longitudinal Waves and page17- Then Define bold terms- in notebook on pg. 31
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LONGITUDINAL WAVES
Compressions- the parts that are close together
Rarefactions- Parts where the coils are spread out
Energy travels parallel along the spring toy-creating a wave- once the wave passes each coil goes back to normal
![Page 16: MAY 12, 2014 Homework: Read pages 15-16 (Stop at Longitudinal Wave) in Sound and Light textbook- Define bold terms. -Unit vocabulary sheet due Friday Do.](https://reader034.fdocuments.net/reader034/viewer/2022051620/56649f135503460f94c26cec/html5/thumbnails/16.jpg)
SURFACE WAVES
Combination of Transverse and Longitudinal Waves.-Circular type motion
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Homework: Questions on the board------------ Finish wave diagrams if not finished in class. Quiz on Section 1 and Section 2 on Wednesday 5-
21
Do Now: Write Down homework & Quiz information Take out both Wave diagrams- Transverse (folded
sheet of paper) and Longitudinal (half –sheet of paper) Open textbook to pg. 18- Open notebook to page 32
May 15, 2014
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PROPERTIES OF WAVES Amplitude Wavelength Frequency Speed
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It is the maximum distance the medium moves above or below the rest position.
Amplitude- The measure of how far a particle in the medium moves from rest when disturbed by a wave. Amplitude is a direct measure of the waves energy
(From Rest –Crest)
(From rest to trough)
![Page 22: MAY 12, 2014 Homework: Read pages 15-16 (Stop at Longitudinal Wave) in Sound and Light textbook- Define bold terms. -Unit vocabulary sheet due Friday Do.](https://reader034.fdocuments.net/reader034/viewer/2022051620/56649f135503460f94c26cec/html5/thumbnails/22.jpg)
Wave length- Distance between two corresponding (alike) parts of a wave-
Crest to Crest
Measured from Trough to Trough
Wavelength
Transverse Wave
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Longitudinal wave- Wavelength is measured from compression to compression
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AMPLITUDE- LONGITUDINAL WAVE
Measured by how compressed or rarefied the medium become.
The more crowded the compressions = the larger the amplitude.
![Page 25: MAY 12, 2014 Homework: Read pages 15-16 (Stop at Longitudinal Wave) in Sound and Light textbook- Define bold terms. -Unit vocabulary sheet due Friday Do.](https://reader034.fdocuments.net/reader034/viewer/2022051620/56649f135503460f94c26cec/html5/thumbnails/25.jpg)
Wave length- Distance between two corresponding (alike) parts of a wave-
Crest to Crest
Measured from Trough to Trough
Wavelength
Transverse Wave
![Page 26: MAY 12, 2014 Homework: Read pages 15-16 (Stop at Longitudinal Wave) in Sound and Light textbook- Define bold terms. -Unit vocabulary sheet due Friday Do.](https://reader034.fdocuments.net/reader034/viewer/2022051620/56649f135503460f94c26cec/html5/thumbnails/26.jpg)
May 16, 2014Homework: -Review notes for quiz on Wednesday – May 21-Complete review work sheet on Labeling Waves
Do Now:-Write down homework-Take out Wave diagrams-Open textbook to pg. 19-Open notebook to page 32
![Page 27: MAY 12, 2014 Homework: Read pages 15-16 (Stop at Longitudinal Wave) in Sound and Light textbook- Define bold terms. -Unit vocabulary sheet due Friday Do.](https://reader034.fdocuments.net/reader034/viewer/2022051620/56649f135503460f94c26cec/html5/thumbnails/27.jpg)
It is the maximum distance the medium moves above or below the rest position.
Amplitude- The measure of how far a particle in the medium moves from rest when disturbed by a wave. Amplitude is a direct measure of the waves energy
(From Rest –Crest)
(From rest to trough)
![Page 28: MAY 12, 2014 Homework: Read pages 15-16 (Stop at Longitudinal Wave) in Sound and Light textbook- Define bold terms. -Unit vocabulary sheet due Friday Do.](https://reader034.fdocuments.net/reader034/viewer/2022051620/56649f135503460f94c26cec/html5/thumbnails/28.jpg)
AMPLITUDE- LONGITUDINAL WAVE
Measured by how compressed or rarefied the medium become.
The more crowded the compressions = the larger the amplitude.
![Page 29: MAY 12, 2014 Homework: Read pages 15-16 (Stop at Longitudinal Wave) in Sound and Light textbook- Define bold terms. -Unit vocabulary sheet due Friday Do.](https://reader034.fdocuments.net/reader034/viewer/2022051620/56649f135503460f94c26cec/html5/thumbnails/29.jpg)
Wave length- Distance between two corresponding (alike) parts of a wave-
Crest to Crest
Measured from Trough to Trough
Wavelength
Transverse Wave
![Page 30: MAY 12, 2014 Homework: Read pages 15-16 (Stop at Longitudinal Wave) in Sound and Light textbook- Define bold terms. -Unit vocabulary sheet due Friday Do.](https://reader034.fdocuments.net/reader034/viewer/2022051620/56649f135503460f94c26cec/html5/thumbnails/30.jpg)
Longitudinal wave- Wavelength is measured from compression to compression
![Page 31: MAY 12, 2014 Homework: Read pages 15-16 (Stop at Longitudinal Wave) in Sound and Light textbook- Define bold terms. -Unit vocabulary sheet due Friday Do.](https://reader034.fdocuments.net/reader034/viewer/2022051620/56649f135503460f94c26cec/html5/thumbnails/31.jpg)
FREQUENCY- Measured in hertz (Hz)
The number of complete waves that pass a given point in a certain amount of time.
Frequency = (Wave)speed Wavelength
Ex: To increase the frequency you need to increase the amount of vibrations.
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FREQUENCY-
EX: If waves on a rope pass by every second, the frequency is 1 wave per second (1 Hz)
1.
2.
3.
Waves are…… vibrations in a medium-
Frequency= Number of Vibrations(Waves) that pass per second-
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~~~~SPEED OF A WAVE~~~~
Why do you see the lightning before you hear the thunder??
Lightning and Thunder~~Speed of Sound vs. Speed of light! Who is faster????
Speed = Wavelength x Frequency