Simple Wave Test

Test Description: First test

Instructions: Answer all questions to get your test result.

1) What happens when something moves faster than the speed of sound?

2) Sound travels the fastest in which of these?

3) If you triple the period of a pendulum, what will happen to its frequency ?

4) The speed of a sound wave in air depends on __________

5) A giant wave in the ocean measures 30 meters from the top of the crest to the bottom of the trough. It also measures 100 meters from crest to crest. What is the amplitude of this wave?

6) You drop pebbles one after another into water and make waves. If you drop them less frequently, what happens to the wavelength of the waves?

7) The period of a wave is 10 seconds and its amplitude is 2m. What is the wave’s frequency?

8) The speed of sound in dry air at 20 degrees Celsius is 340 m/s. How far away is a jet plane when you notice a 3.5 second delay between seeing the plane and hearing it?

9) A pendulum oscillates 10 times in 20 seconds. What is the period of the pendulum?

10) A sound wave has a wavelength of 10 m in a room that is cooled to 15oC. What is the speed of sound in that room?


*select an answer for all questions

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