NCEIV40 0-0810

Question 1

Lesson 40

Answer 1

Lesson 40 Waves

Question 2

Waves are the c

Answer 2

Waves are the children of the struggle between ocean and atmosphere, the ongoing signatures of infinity.

Question 3

Rays from the s

Answer 3

Rays from the sun excite and energize the atmosphere of the earth, awakening it to flow, to movement, to rhythm, to life.

Question 4

The wind then s

Answer 4

The wind then speaks the message of the sun to the sea and the sea transmits it on through waves – an ancient, exquisite, powerful message.

Question 5

These ocean wav

Answer 5

These ocean waves are among the earth’s most complicated natural phenomena.

Question 6

The basic featu

Answer 6

The basic features include a crest (the highest point of the wave), a trough (the lowest point), a height (the vertical distance from the trough to the crest), a wave length (the horizontal distance between two wave crests), and a period (which is the time it takes a wave crest to travel one wave length).

Question 7

Although an oce

Answer 7

Although an ocean wave gives the impression of a wall of water moving in your direction, in actuality waves move through the water leaving the water about where it was.

Question 8

If the water wa

Answer 8

If the water was moving with the wave, the ocean and everything on it would be racing in to the shore with obviously catastrophic results.

Question 9

An ocean wave p

Answer 9

An ocean wave passing through deep water causes a particle on the surface to move in a roughly circular orbit, drawing the particle first towards the advancing wave, then up into the wave, then forward with it and then ?C

Question 10

as the wave lea

Answer 10

as the wave leaves the particles behind – back to its starting point again.

Question 11

From both matur

Answer 11

From both maturity to death, a wave is subject to the same laws as any other ‘living’ thing.

Question 12

For a time it a

Answer 12

For a time it assumes a miraculous individuality that, in the end, is reabsorbed into the great ocean of life.

Question 13

The undulating

Answer 13

The undulating waves of the open sea are generated by three natural causes: wind, earth movements or tremors, and the gravitational pull of the moon and the sun.

Question 14

Once waves have

Answer 14

Once waves have been generated, gravity is the force that drives them in a continual attempt to restore the ocean surface to a flat plain.