Geog 3A ~ Final Review

Chapter 10 ~ Ocean Waves

Chapter 11 ~ Tides

The Plan

Collective Practice Exam

(Ask questions at any time)

TA Evaluations

Return Graded Assignments (after class)

1. Waves that occur along the interface of two water masses with different densities are 

Practice Exam-Ch 10

A. internal waves.

B. chop.

C. swell.

D. tsunami.

E. tides.

2. The restoring force for capillary waves is

A. gravity.

B. wind.

C. hydrostatic pressure

D. surface tension.

E. None of the choices are correct.

3. The restoring force for wind waves is

A. gravity.

B. wind.

C. hydrostatic pressure.

D. surface tension.

E. None of the choices are

correct.

4. Waves traveling in water depths deeper than 1/2 the wavelength of the wave are called

A. shallow-water waves.

B. deep-water waves.

C. intermediate waves.

D. tsunami.

E. internal waves.

5. Waves traveling in water depths less than 1/20th of their wavelength are called

A. shallow-water waves.

B. deep-water waves.

C. intermediate waves.

D. tsunami.

E. internal waves.

6. Once a gravity wave forms, its _______ does not change.

A. wavelength

B. height

C. steepness

D. speed

E. period

7. A wave with a wavelength of 50 feet is traveling in water with a depth of 2 feet. Which equation correctly expresses its speed?

A.  C = 1.56 T

B.  C = 1.56 L

C.  C = gh

D.  C = square root of gh

E.  C = h/L

8. A wave with a wavelength of 200 feet is traveling in water with a depth of 2000 feet. Which equation correctly expresses its speed?

A.  C = 1.56 T

B.  C = 1.56 L

C.  C = gh

D.  C = square root of

gh

E.  C = h/L

9. The separation of waves according to their wave speed is called

A. diffusion.

B. dispersion.

C. separation.

D. refraction.

E. reflection.

10. The speed of an individual wave is ______ the group speed. 

A. half

B. the same as

C. twice

D. three times

E. ten times

11. The speed of shallow-water waves depends solely on

A. water density.

B. wave period.

C. wave height.

D. wave steepness.

E. water depth.

12. The distance over which the wind blows is called

A. wind steepness.

B. wind fetch.

C. wind duration.

D. wind scale.

E. wind speed.

13. Which of the following is generally not a factor in wave generation in the open ocean?

A. wind speed

B. wind fetch

C. wind duration

D. wind direction

14. In general, the largest and most powerful waves for surfing are produced by

A. large storm systems.

B. tsunami.

C. hurricanes.

D. tornadoes.

E. tides.

15. The steepness of a wave is defined as

A. wave height divided by wave

period.

B. wave height divided by wavelength.

C. wavelength divided by wave height.

D. wavelength divided by wave period.

E. wave height multiplied by

wavelength.

16. You see a wave with a height of 2 meters and a wavelength of 18 meters. Based on the steepness

A. you don’t have enough information

to know if the wave will break.

B. S < 1/7 so the wave will break

C. S > 1/7 so the wave will not break.

D. S < 1/7 so the wave will not break

E. S > 1/7 so the wave will break

17. The "tube" of spectacularly large waves results from

A. water particles in the crest moving faster than the speed of the wave.B. the base of the wave moving faster than the crest.C. the reversal of wave orbitals.D. a bump in the seafloor, like a sand bar.E. scientists are not sure why tubes form.

18. The bending of a wave front as it approaches the shoreline is called

A. wave reflection.

B. wave focusing.

C. wave refraction.

D. wave diffraction.

E. wave interference.

19. Wave refraction on a straight shoreline facing west will not occur if

A. the waves come from the northwest.

B. the waves come from the southwest.

C. the waves come directly from the

west.

D. none of the above

20. Refraction of a wave in a bay

A. distributes the wave energy over a greater length of a wave front.B. creates smaller waves in the bay.C. creates larger waves in the bay.D. concentrates wave energy into a small portion of the bay.E. Both distributes the wave energy over a greater length of a wave front and creates smaller waves in the bay.

21. The transfer of wave energy laterally along the crest of a wave is called

A. wave reflection.

B. wave refraction.

C. wave focusing.

D. wave diffraction.

E. wave displacement.

22. The speed of a tsunami is largely controlled by

A. the vertical displacement that caused

it.

B. the density of seawater in which it

occurs.

C. the water depth.

D. the area over which it occurs.

E. All of the choices are correct.

23. The horizontal distance from the shoreline to the landwardmost reach of a tsunami is called

A. inundation.

B. runup.

C. scattering.

D. tsunami break.

E. tsunami splash.

24. The vertical height above sea level to which a tsunami reaches is called

A. inundation.

B. runup.

C. scattering.

D. tsunami break.

E. tsunami splash.

25. A standing wave that may occur in a semi-enclosed basin or waterway is called

A. a splash wave.

B. storm surge.

C. a bore.

D. a seiche.

E. All of the choices are correct.

1. Tides are caused by

a: centrifugal forceb: gravitational attraction between planetary bodiesc: the Earth’s rotationd: the Coriolis effecte: Newton’s law

Practice Exam-Ch 11

2: Which of the following is not a characteristic of the tide-producing forces?

a: tidal forces result from differences in gravitational attraction at different points on Earth’s surfaceb: the horizontal tidal forces cause movements of waterc: the Moon’s gravity pulls water upwards towards it as a vertical forced: points directly beneath and opposite the Earth-moon axis have zero tidal forcese: tidal forces are very weak over short distances

3: The monthly tidal pattern where the tidal range is minimal is known as

a: neap tidesb: full tidesc: spring tidesd: low tidese: high tides

4: The monthly tidal pattern where the tidal range is maximal is known as

a: neap tidesb: full tidesc: spring tidesd: low tidese: high tides

5: A daily tidal pattern with one high tide and one low tide is called

a: diurnalb: semidiurnalc: mixed semidiurnald: rotatinge: spring

6: A daily tidal pattern with two high tides and two low tides of equal height is called

a: diurnalb: semidiurnalc: mixed semidiurnald: rotatinge: spring

7: A daily tidal pattern with two high tides and two low tides of unequal height is called

a: diurnalb: semidiurnalc: mixed semidiurnald: rotatinge: spring

8: What type of daily tidal pattern occurs in the Gulf of Mexico?

a: diurnalb: semidiurnalc: mixed semidiurnald: rotatinge: spring

9: What type of daily tidal pattern occurs along the Northeast US coast?

a: diurnalb: semidiurnalc: mixed semidiurnald: rotatinge: spring

10: In terms of celestial influences on ocean tides, which is more important?

a: distance from Earthb: mass of celestial bodyc: rotational speedd: angle of tilt with respect to its plane of orbit around the Earthe: hard to tell

11: A daily tidal pattern of two equal high and low tides is known as a ________ tide and occurs in places like _________________.

a: mixed...southern Californiab: diurnal...Galveston, Texasc: semidiurnal...southern Californiad: semidiurnal...Boston, Massachusettse: mixed...Bangor, Maine

12: In reality, tides propagate dynamically around ocean basins as a

a: tidal waveb: standing wavec: Kelvin waved: all of the abovee: none of the above

13: A wall of water that rushes into a bay or river as the leading edge of a rising tide is called a

a: tidal waveb: tidal currentc: tidal bored: tidal walle: perigean spring tide

Geog. Dept. TA Evaluations

Volunteer to take them to Kathy in the Geography Main Office?

Good luck!Thanks for a great quarter.