Истории и востоковедения
A. Checking your understanding
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| A. Checking your understanding
I. Give answers to the following questions: 1. What is a wavelength? 2. How can the wavelength be determined? 3. What types of waves are you familiar with? 4. Can you give their definitions and note the main features? 5. What is peculiar about the regions of a coil? II. There are several definitions in the text. What are they? Complete the sentences with the appropriate word(s). 1. A is a wave in which the particles of the medium are displaced in a direction perpendicular to the direction of energy transport. 2. The length of one such spatial repetition (known as a wave cycle) is the . 3. A is a point on a medium through which a longitudinal wave is traveling that has the maximum density. 4. A is a wave in which the particles of the medium are displaced in a direction parallel to the direction of energy transport. 5. A is a point on a medium through which a longitudinal wave is traveling that has the minimum density. 63 III. Are these sentences true or false? 1. The wavelength can always be determined by measuring the distance between any two corresponding points on adjacent waves. 2. A region where the coils are pressed together in a small amount of space is known as a compression. 3. A transverse wave can be created in a rope if the rope is stretched out vertically and the end is vibrated back-and-forth in a horizontal direction. 4. While a longitudinal wave has an alternating pattern of crests and troughs, a transverse wave has an alternating pattern of compressions and rarefactions. 5. A region where the coils are spread apart, thus maximizing the distance between coils, is known as a rarefaction. жүктеу/скачать 1,14 Mb. Достарыңызбен бөлісу:
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