chapter 11

Question 1

The tide-generating force of the Sun is about ____ % as large as the tide-generating force of the Moon.

Answer 1

50

Question 2

define perigean tide

Answer 2

Tide occurring when the Moon is closest to the Earth, producing above-average ranges in the tides

Question 3

define tidal bore

Answer 3

A high, often breaking wave generated by a tide crest that advances rapidly up an estuary or river

Question 4

define neap tide

Answer 4

Tide occurring during a time of minimum tidal range between high and low tides, when Earth, Moon, and Sun align at right angles.

Question 5

define Ebb current

Answer 5

Water rushing out of an enclosed harbor or bay because of the fall in sea level as a tide trough approaches

Question 6

define mixed tide

Answer 6

A complex tidal cycle, usually with two high tides and two low tides of unequal height per lunar day.

Question 7

define semidiurnal tide

Answer 7

A tidal cycle of two high tides and two low tides each lunar day, with the high tides of nearly equal height.

Question 8

define astronomical tide

Answer 8

Tide caused by the gravitational and inertial interaction of the Sun and Moon.

Question 9

define lunar tide

Answer 9

Tide caused by the gravitational and inertial interaction of the Moon and Earth

Question 10

define meteorological tide

Answer 10

Tide influenced by the weather.

Question 11

define solar tide

Answer 11

Tide caused by the gravitational and inertial interaction of the Sun and Earth.

Question 12

define spring tide

Answer 12

Tide occurring during a time of maximum tidal range between high and low tides, when Earth, Moon, and Sun form a straight line.

Question 13

define diurnal tide

Answer 13

A tidal cycle of one high tide and one low tide per lunar day.

Question 14

Newtons _______ Theory of tides describes the effects of gravitational and inertial tide-producing forces of the Sun and the Moon on a planet uniformly covered by water whereas the ______Theory of tides includes fluid motion dynamics and factors in such variables as ocean depth and position of continental landmasses

Answer 14

equalibrium and dynamic

Question 15

As the Moon revolves around the Earth, the angle between its orbital plane and the rotational plane of the Earth varies, which translates in the angle increasing and decreasing in relation to the equator. What is the technical term for that angle?

Answer 15

declination

Question 16

If the high tide of a diurnal tide occurs at 6:00 am on one day approximately when will the next high tide occur?

Answer 16

6:50am the next day

Question 17

The centre of mass in the Earth-moon system around which they rotate is called the:

Answer 17

Barycenter

Question 18

true or false: Because of hostile conditions in the intertidal zone (variation in water depth, intense wave action, salinity and temperature fluctuations, sediment input, etc.), very few organisms have adapted to living in this environment.

Answer 18

false

Question 19

Slack water occurs during:

Answer 19

the change from flood to ebb tide or vice versa

Question 20

The tides with the greatest tidal range during the month are the _________ tides.

Answer 20

spring

Question 21

A tide that has only one high and one low per day is a
_____ tide.

Answer 21

diurnal

Question 22

A tide that has two high and tow low tides per day, each of different height is called a ______ tide.

Answer 22

mixed/mixed semidiurnal

Question 23

According to Newton’s Law of Universal Gravitation, which of the following would result in an increased gravitational force between two objects:

Answer 23

increasing the mass of one object, decreasing distance between them

Question 24

Spring tides occur:

Answer 24

when the angle between the Earth, sun and moon is 180 and approximately every two weeks

Question 25

TRUE OR FALSE: The intertial force of the Earth/moon rotating system is directed outwards.

Answer 25

true

Question 26

true or false: Amphidromic circulation in the northern hemisphere generally rotates clockwise.

Answer 26

false

Question 27

define what an amphidromic point is

Answer 27

the center point around which amphidromic circulation
rotates; there is near-zero tidal range at the amphidromic point

Question 28

what is a seiche

Answer 28

pendulum-like rocking of water in an enclosed area; a form of standing
wave that can be caused by meteorological or seismic forces, or that may result
from normal resonances excited by tides.