Tides

Question 1

Tides can have a wavelength equal to half of Earth’s circumference

T/F?

Answer 1

True

Question 2

Spring tides are seasonal events

T/F?

Answer 2

False

Question 3

High tides are associated with the area between the bulges.

T/F?

Answer 3

False

Question 4

A tide wave moves north in the Northern Hemisphere and south in the Southern Hemisphere

T/F?

Answer 4

False

Question 5

The amphidromic point is an area where tides are especially pronounced

T/F?

Answer 5

False

Question 6

Basin configuration can cause variations in tidal ranges

T/F

Answer 6

True

Question 7

What type of waves are tides?

Answer 7

Forced waves

Question 8

Why does the moon have more of an impact on the tides than the sun

Answer 8

The moon is closer to the Earth

Question 9

What is the net force of inertia and gravitational attraction combined?

Answer 9

Tractive forces

Question 10

What is Earth’s greatest distance from the sun?

Answer 10

Aphelion

Question 11

What type of tide will result from the sun and moon forming a right angle with Earth?

Answer 11

Neap tide

Question 12

What type of tidal pattern exist on the east coast of the United States, which experiences two high tides and two low tides of similar heights every day?

Answer 12

Semidiurnal

Question 13

What determines the velocity of tidal crest?

Answer 13

Ocean depth

Question 14

High or low tidal currents that change in direction results in…?

Answer 14

Slack water

Question 15

What is an example of true tidal wave?

Answer 15

Tidal bore

Question 16

What js an amphidromic point?

Answer 16

A node in the center of an ocean basin

Question 17

What is the relationship between the heights of tides and the amphidromic point?

Answer 17

Heights increase with distance from the amphidromic point

Question 18

What type of current occurs as a tide crest approaches an enclosed area?

Answer 18

Flood current

Question 19

When do tidal currents reach their maximum velocity?

Answer 19

Midway between high and low tide

Question 20

What type of tidal pattern exists on the west coast of the United States, which receives two high tides and two low tides of varying heights per day?

Answer 20

Semidiurnal mixed tides are

Question 21

Tidal height is compared to what reference level?

Answer 21

Tidal datum

Question 22

Most of the worlds’ oceans have a _______ Tidal pattern

Answer 22

Semidiurnal

Question 23

What organism uses the tides, specifically spring high tides, to time their breeding behaviors?

Answer 23

Grunion

Question 24

Who proposed the dynamic theory of tides?

Answer 24

Pierre-simon Laplace

Question 25

Tides behave as shallow water waves?

T/F?

Answer 25

True

Question 26

Tides more around no-tide points jn a _____ direction in the northern hemisphere

Answer 26

Counterclockwise