Physics for Grammar Schools
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In our eReader you can find the full English version of the book. Read Physics for Grammar Schools Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Physics for Grammar Schools
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To quickly assess the difficulty of the text, read a short excerpt:
Obtain a goblet of thin glass, and rub its edge with your wet finger.
104 CONDENSATION RAREFACTION.
105 Exp. 126. Probably the vibrations of the glass cannot be seen. Therefore suspend a pith ball against the edge of the goblet while it is vibrating.
Fig. 64.
These and similar experiments indicate that sound is always the result of vibrations; and we believe that sound is caused by these vibrations. When the vibrat- ing body moves forward it strikes the molecules of air, Fig. 65.
causing them t...o crowd together, and they in turn push against their neighbors, and so on. Thus a condensation is made to move outward in all directions from the vibrat- ing body. This condensation of air molecules is followed by a rarefaction when the vibrating body moves backward.
I0 6 VIBRATIONS SOUND.
One condensation and one rarefaction constitute a sound wave. These waves follow each other in rapid succession, and affect the drum of the ear, and we say that we hear a sound.
Exp. 127. Put your ear against one end of a log of wood while some one scratches the opposite end with a pin.
What to read after Physics for Grammar Schools?
You can find similar books in the "Read Also" column, or choose other free books by Charles Laommi Harrington to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Obtain a goblet of thin glass, and rub its edge with your wet finger.
104 CONDENSATION RAREFACTION.
105 Exp. 126. Probably the vibrations of the glass cannot be seen. Therefore suspend a pith ball against the edge of the goblet while it is vibrating.
Fig. 64.
These and similar experiments indicate that sound is always the result of vibrations; and we believe that sound is caused by these vibrations. When the vibrat- ing body moves forward it strikes the molecules of air, Fig. 65.
causing them t...o crowd together, and they in turn push against their neighbors, and so on. Thus a condensation is made to move outward in all directions from the vibrat- ing body. This condensation of air molecules is followed by a rarefaction when the vibrating body moves backward.
I0 6 VIBRATIONS SOUND.
One condensation and one rarefaction constitute a sound wave. These waves follow each other in rapid succession, and affect the drum of the ear, and we say that we hear a sound.
Exp. 127. Put your ear against one end of a log of wood while some one scratches the opposite end with a pin.
What to read after Physics for Grammar Schools?
You can find similar books in the "Read Also" column, or choose other free books by Charles Laommi Harrington to read onlineMoreLess
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