| Category | Format | Size |
|---|---|---|
| Fourth Grade Science Volume 1, Textbook Edition | pptx | 6 MB |
"Exploring the Pitch Changes of the Ruler" Sound PPT
Description
"Exploring the Pitch Changes of the Ruler" Sound PPT
Part One: Knowledge Review
1. Sound is produced by objects _____.
2. The strength of the sound can be described by _____.
3. The pitch of the sound can be described by _____.
4. Different objects _____, _____, and _____ will change the level of the sound emitted by the object.
In the experiment of shaking a steel ruler or a plastic ruler, we already know the relationship between the vibration amplitude of the ruler and the volume. If we continuously change the length of the ruler extending out of the table, will the pitch of the ruler change when it vibrates?
Exploring the pitch changes of the ruler PPT, Part 2: Experimental requirements
1. Press the ruler tightly and do not let the ruler make any sound when it hits the table.
2. Be sure to keep quiet.
3. Conduct experiments in the order in which the length of the ruler extending from the tabletop changes: such as 8, 12, 16, 20cm.
4. Press the ruler with the same force, and do the same length experiment several times.
5. Compare on the basis of repeated experiments, and finally complete the experiment record sheet.
6. Pay attention to division of labor and cooperation.
Through the record table and histogram of the length of the ruler sticking out of the table and the changes in pitch, can we find the relationship between the pitch and the speed of the object's vibration?
The longer the ruler extends out of the table, the slower the vibration frequency and the lower the pitch;
The shorter the length of the ruler extending from the table, the faster the vibration frequency and the higher the pitch.
Using the same method, we can also explore the relationship between sound volume and the size of an object's vibration. Please continue your research after class.
Keywords: free download of Chinese PPT courseware for the first volume of the fourth grade of the textbook version, download of PPT exploring the pitch changes of the ruler, download of sound PPT, .PPT format;
For more information about the PPT courseware "Sound Exploring the Pitch Changes of the Ruler", please click the Sound PPT Exploring the Pitch Changes of the Ruler PPT tag.
"Exploring the Pitch Changes of the Ruler" Sound PPT Download:
"Exploring the Pitch Changes of the Ruler" Sound PPT Download Part One: Introduction of the New Lesson Do students usually like to play with toys? Today we are also going to play with toys. We are not only competing to see who can play well, but also competing to see who has gained more knowledge while playing. ..
"Exploring the Pitch Changes of the Ruler" Sound PPT Courseware 2:
"Exploring the Pitch Changes of the Ruler" Sound PPT Courseware 2 Question to explore: Will the short pitch change if the ruler is extended further? My guess: the shorter the ruler extends, the higher the pitch. Material: ruler. Experimental process: first extend the ruler 8cm and move the ruler...
"Exploring the Pitch Changes of the Ruler" Sound PPT courseware:
"Exploring the Pitch Changes of the Ruler" Sound PPT Courseware Knowledge Review: (1) Sound is produced by the object ________. (2) The intensity of sound can be described by __________. (3) The pitch of the sound can be described by _________. (4) Object_..
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Update Time: 2024-07-03
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