Science Questions of the Day

Waves-Week 2

Answers:

1) Does water moving through a hose qualify as a wave? Explain why or why not. Answer: No, the water travels from one end of the hose, to the other. In a wave, the disturbance moves, but the medium does not.

2) When you make sounds by plucking a rubber band, you make the rubber band move back and forth quickly. What is this called?

Answer: Vibration

3) The distance between two crests or troughs is called?

Answer: Wavelength

4) What is the lowest part of a wave?

Answer: Trough

5) Suppose you drop a cookie crumb in your milk, you see ripples spreading across the surface of the milk. What types of waves are these and what is the disturbance? Answer: Transverse Waves and the falling crumb.

6) For wave refraction to take place, a new medium must enter a new medium.

7) What is the highest point of a wave? Answer: Crest

8) The direction in which a transverse wave travels is ______.

Answer: At right angles to the disturbance.

9) As you increase energy transferred increases the ______.

Answer: Amplitude.

10)Which statement best describes the relationship between frequency and wavelength?

Answer: When frequency increases, wavelength decreases.

11)Which setup in a wave tank would enable you to demonstrate diffraction?

Answer: Water and a Barrier with a Small Gap.

12)Two waves come together and interact to form a new, smaller wave. This process is called destructive inference.

13)Explain how a wave can travel through a medium and yet the medium stays in place. Use the term energy in your answer. Answer: Energy travels through a medium, leaving the matter in place.

14)Describe two ways in which the waves travel, and give an example of each.

Answer: Transverse waves travel at right angles to the disturbance. Longitudinal waves travel in the same direction as the disturbance. Examples: Ocean waves, and sound waves. 15)To identify the amplitude in a longitudinal wave, you would look for areas of ______.

Answer: Compression.