Question

11. The sketch below shows a snapshot of the condensations and rarefactions of the air in a tube as the sound moves toward the right. The dots represent molecules. With a ruler the wavelength of the sound wave is measured to be cm. 12. Compared to the wavelengths of high-pitched sounds, the wavelengths of low-pitched sounds are (long) (Short) 13. Suppose you set your watch by the sound of the noon whistle from a factory 3 km away. a. Compared to the correct time, your watch will be (behind) (ahead) b. It will differ from the correct time by about (3 seconds) (6 seconds) (9 seconds)

          11. The sketch below shows a snapshot of the condensations and
rarefactions of the air in a tube as the sound moves toward the
right. The dots represent molecules. With a ruler the wavelength
of the sound wave is measured to be cm.
12. Compared to the wavelengths of high-pitched sounds, the
wavelengths of low-pitched sounds are
(long)
(Short)
13. Suppose you set your watch by the sound of the noon whistle from a
factory 3 km away.
a. Compared to the correct time, your watch will be
(behind) (ahead)
b. It will differ from the correct time by about
(3 seconds) (6 seconds) (9 seconds)

11. The sketch below shows a snapshot of the condensations and
rarefactions of the air in a tube as the sound moves toward the
right. The dots represent molecules. With a ruler the wavelength
of the sound wave is measured to be cm.
12. Compared to the wavelengths of high-pitched sounds, the
wavelengths of low-pitched sounds are
(long)
(Short)
13. Suppose you set your watch by the sound of the noon whistle from a
factory 3 km away.
a. Compared to the correct time, your watch will be
(behind) (ahead)
b. It will differ from the correct time by about
(3 seconds) (6 seconds) (9 seconds)

Added by Glenda V.

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