Diagram on Refraction of Water waves

GENERAL INSTRUCTIONS:

Post your answers on this blog as a form of a comment below. Indicate your group name and section prior to posting.


Label the following diagram with the following terms:

· Angle of incidence

· Angle of refraction

· Normal

· Deep portion

· Shallow portion


ANSWER

1. ____________________

2. ____________________

3. ____________________

4. ____________________

5. ____________________

Mighty rolls motivational movie

play this video and watch the waves.

Online Quiz (water waves refraction)

INSTRUCTIONS: Write the letter of your best answer for each number. Then comment as (Name/URL) put your name and section (ex. Juan Dela Cruz/Section Aristotle) together with your answers. 1. It is a combination of both the longitudinal and transverse waves.
a. Water wave b. sound wave
c. compressional wave d. light wave e. radio waves
2.Pulse is a single non-repeated vibration, while a series of vibrations is called
a. longitudinal wave b. periodic waves
c.harmonic waves d. wave train e. swell
3. the material that a wave travel through is called
a. amplitude b. medium
equilibrium position d. frequency
4. Deep water waves
a. are small waves with small wavelengths compared to ther depth of the fluid.
b. are called Tsunami, the deep water wave.
c. propagate at the same speed.
d.are waves of large amplitudes.
5. Shallow water waves
a. are waves with small wavelengths compared to the depth of the fluid.
b. Are like Tsunami, the shallow water waves
c. suffer dispersion.
d. are waves of large amplitudes.
6. Most ocean waves are caused by
a. convection
b. underwater earthquakes, volcanic eruptions land slides
c. density settling
d. the tides
e. the wind
7. The property of water waves to bend as it reaches the boundary between two media is called
a. reflection of water waves
b. diffraction of watwer waves
c. Interference of waterwaves
d. refraction of water waves
e. sounding of water waves
8. Water waves that seem to originate from thre boundary
a. incident waves
b. refracted waves
c. diffracted waves
d. interfered waves
e. resonance
9. When waterwaves travel from the deep to the shallow portion of the water,
a. the angle of refraction is smaller than the angle of incidence
b. the angle of refraction is greater than the angle of incidence.
c. the angle of reflection is the same as the angle of incidence.
d. the angle of reflection is greater than the angle of incidence.
e. the angle of refraction is the same as the angle of incidence.
10. When water waves travel from the shallow to the deep portion of the water,
a. the angle of refraction is smaller than the angle of incidence
b. the angle of refraction is greater than the angle of incidence.
c. the angle of reflection is the same as the angle of incidence.
d. the angle of reflection is greater than the angle of incidence.
e. the angle of refraction is the same as the angle of incidence.

Essay

INSTRUCTIONS:
With the given information BELOW, in your own words, write a short essay relating refraction of water waves according to the article here. Post your essay as a comment to this article together with your name and section [ex. Jologs group - Section: Aristotle] in the selection like the one below.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

A wave is traveling disturbance. It carries energy and information from one point to another without transferring matter. A vibrating source in the medium is essential in the creation as well as transmission of mechanical waves. The medium can be solid, liquid or gas. An electromagnetic wave needs no medium in order to be propagated. A typical water wave, is the kind that occurs in the deep seas and oceans. A water wave is neither longitudinal or transverse, but a combination of both. If the displacements of the particles of the medium are perpendicular to to the direction of the wave motion, the wave is transverse; and if the displacement of the particles of the medium is parallel to the direction of the wave motion, the wave is longitudinal. The distance between two corresponding points in a wave train is a wavelength. the wavelength of an incident wave is equal to that of the reflected wave. The path a bit of water makes as the wave goes by is actually a circle. The figure 1 below is a nice illustration of a water wave, with the circles representing little bits of water. Notice how they spin in a circle as the wave passes.

The waves change their speeds and directions as they pass from deep to shallow portions of the water and as they approach the boundary between two different media at an angle. The deep and shallow portions are considered two different media. A long wave of water that moves continuously without breaking is a swell. It usually comes parallel to the shore because waterwaves refract as it hits the boundary between the deep and the shallow portions of the water near the beach.

Below is another picture that shows a nice illustration of a water wave. Here, imagine a water wave far off shore, with one of the red dots being a seagull or log floating (or you on a surf board when you’re past the surf zone just relaxing in the sun). If that sight is familiar to you, you may remember that as a wave passes underneath, the floating thing seems to slosh back and forth, seeming to fall down the back of the waves. This is really just the circular motion of the water as the wave rushes underneath!

QUESTION: HOW DOES WATER WAVE REFRACTION EXPLAIN WHY BIG WAVES OR SWELLS COME IN ROUGHLY PARALLEL TO THE SHORE?

Point system : RUBRIC ASSESSMENT

(also check Water waves and Tsunamis for additional reading resources prior to posting your comments)