1) The document discusses an upcoming science lab investigating how tension and length of vibrating strings affect pitch. Students are instructed to gather materials and make predictions.
2) The lab will test how pitch is affected by increasing string tension and decreasing string length. Tension will be increased by tightening the string, and shorter strings are expected to produce higher pitches.
3) Changing string properties like tension and length alters the frequency of vibrations, impacting the perceived pitch.
Vibration and frequency measuring instrumentsPrashant thakur
This presentation is about the basic concepts of vibration & Frequency measuring instruments and their types.
The slides contains the best picture as example of the theory portion.
In this presentation, I explain what a standing wave on a string is, the difference between a standing wave and a travelling wave, and go over some practice problems.
Vibration and frequency measuring instrumentsPrashant thakur
This presentation is about the basic concepts of vibration & Frequency measuring instruments and their types.
The slides contains the best picture as example of the theory portion.
In this presentation, I explain what a standing wave on a string is, the difference between a standing wave and a travelling wave, and go over some practice problems.
This presentation gives the information about 'vibration measuring instruments' covering syllabus of Unit-5 of Theory of vibrations or mechanical vibrations for BE course under VTU, Belgaum. This presentation is prepared by Hareesha N G, Asst. Prof, Dept of Aerospace, DSCE, B'Lore-78.
This presentation gives the information about 'vibration measuring instruments' covering syllabus of Unit-5 of Theory of vibrations or mechanical vibrations for BE course under VTU, Belgaum. This presentation is prepared by Hareesha N G, Asst. Prof, Dept of Aerospace, DSCE, B'Lore-78.
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Match the vocabulary word and it's definition.
Dynamic
[ Choose ]
Pitches organized with rhythm as a recognizable unit that has a beginning, middle and end. Like words in a sentence.
The largest structure, it is created by repetition and contrast of the smaller Structures.
The time aspect of music, the length of the sound being made.
How loud or soft the sound is.
More than one pitch sounding at the same time.
The way the various lines of music are layered 'on top' of each other.
The quality of the sound, what instrument is making the sound.
The "notes", or the relative high sound or low sound that is heard.
Pitch
[ Choose ]
Pitches organized with rhythm as a recognizable unit that has a beginning, middle and end. Like words in a sentence.
The largest structure, it is created by repetition and contrast of the smaller Structures.
The time aspect of music, the length of the sound being made.
How loud or soft the sound is.
More than one pitch sounding at the same time.
The way the various lines of music are layered 'on top' of each other.
The quality of the sound, what instrument is making the sound.
The "notes", or the relative high sound or low sound that is heard.
Tone Color/Timber
[ Choose ]
Pitches organized with rhythm as a recognizable unit that has a beginning, middle and end. Like words in a sentence.
The largest structure, it is created by repetition and contrast of the smaller Structures.
The time aspect of music, the length of the sound being made.
How loud or soft the sound is.
More than one pitch sounding at the same time.
The way the various lines of music are layered 'on top' of each other.
The quality of the sound, what instrument is making the sound.
The "notes", or the relative high sound or low sound that is heard.
Melody
[ Choose ]
Pitches organized with rhythm as a recognizable unit that has a beginning, middle and end. Like words in a sentence.
The largest structure, it is created by repetition and contrast .
Sound is produced when a matter vibrates. Sounds consists waves and these waves travel as a longitudinal waves. Sound travels fastest in solids because the particles are closer. The speed of sound depends on the temperature of matter. The higher the temperature, the higher the speed of sound is. The properties of sound are reflection and refraction. In reflection, the sound wave turns back when it hits a barrier. A good example of this are echoes and reverberations. On the other hand, refraction is the bending of sound waves.
Similar to Effect of Tension, Length of String on Frequency (20)
The slideshow portion of my pecha kucha that I used to present how I integrate technology into my classroom. There are twenty slides and each slide lasts 20 seconds. The narrative is spoken, not read. I have uploaded the bullet points of the presentation as a separate file.
1. Good Afternoon! Today we will: conduct an investigation write a conclusion about our investigation take some notes Please do before the tardy bell: get your science notebook get a whiteboard and marker get a textbook get out something to write with (besides my marker!)
2. Tension, Length, & Pitch What is the effect of tension and length of a vibrating string on the pitch of a sound?
3.
4. In Your Lab Notebook Turn to the first clean page in your lab book and title it, “Sounds in Vibrating Strings.” Be sure to make an entry in your Table of Contents as well. Turn in your textbook to page 484 read the “What do You Think” section and write your answers the two questions in your lab book – use complete sentences that restate the question, please. 1-2-4
5. Sounds in Vibrating Strings Read the “Investigate” on pages 484 – 486. When you are finished reading, you should know: the two different independent variables you will be testing the one dependent variable you will be evaluating you have 7 minutes
6. Sounds in Vibrating Strings On your whiteboard, identify the two independent variables. Now identify the dependent variable.
7. Sounds in Vibrating Strings In your lab book, write two hypothesis statements: one of each independent variable. What safety precautions should you take in this lab?
8. Questions You Will Answer What happens to the pitch of the sound produced by a string when its tension is increased? How did you increase tension in the investigation? When you decrease the length of a string in an instrument, how does the pitch of the sound you hear change? Using the terms tension, length, pitch, and frequency describe how to change the quality of sound.
9. Changing the Pitch To produce sound (any sound) something must vibrate. Everything that vibrates produces a sound. In the lab, we saw that shortening the string affected the pitch of the sound… what happened to the pitch when the string was shortened?
10. Changing Pitch When you play the guitar, you change the length of the string by pressing your fingers down on strings at different places along the neck of the guitar
11. Changing Pitch What about instruments without strings – like a drum? What do you think vibrates to make sound on a drum?
13. Changing the Pitch With instruments like drums, the “length of the string” is the size of the drumhead. The larger the drumhead, the lower the pitch.
14. Changing Pitch The other independent variable we tested in the investigation was tension. Tension: how tight a string or wire is stretched. How did we change the tension of the string? What happened to the pitch of the sound when the tension was increased?
15. Changing Pitch String instruments such as guitars or violins have pegs attached to the end of a string. A musician adjusts the string tension by turning the peg.
16. Changing Pitch In our investigation, we “measured” pitch by observing the quality of the sound. Was this a qualitative or quantitative measurement? qualitative
17. Types of Measurements Remember: “qualitative” refers to the quality of something: the quality of a taste, feel, smell, sound whereas“quantitative” refers to a measurement with a number – a quantity What would be necessary to make a quantitative measurement of pitch?
18. Pitch & Frequency The higher the pitch of a sound, the greater the frequency. frequency:the number of cycles a vibration makes in a given time period (almost always a second)
19. Independent & Dependent Variables If you wanted to test the effect of the length of a string on the frequency of sound it produces, what would your independent variable be? length of string
20. Graphing On your whiteboard, create a graph for length of string versus frequency of sound. Sketch what you believe the shape of the line should be. frequency length of string
21. Checking Up What happens to the pitch of the sound produced by a string when its tension is increased? How did you increase tension in the investigation? When you decrease the length of a string in an instrument, how does the pitch of the sound you hear change? Using the terms tension, length, pitch, and frequency describe how to change the quality of sound.