Задание 1. Прочитайте и письменно переведите следующий текст. Составьте 5 вопросов к тексту. WAVES AND WAVE – MOTION

We see water waves almost every day, we make use of light waves to see the water waves; we hear sounds by means of sound waves. Wave – motion is everywhere. Water waves, light waves, sound waves, any kind of waves, have one thing in common. They transmit energy through a medium by means of vibrations of the particles, but the medium as a whole is not changed or displaced. The number of complete vibrations per second is called the frequency of the wave-motion. The distance between the top of one wave and the top of the next (or between the bottom of one wave and the bottom of the next) is called the wave-length. To find the speed of the wave-motion we multiply the frequency by the wave-length. This important equation is true for any kind of waves.

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