Tides

Question 1 of 19

1

What are tides?

Select one of the following:

Periodic, short-term changes in the height of the ocean surface at a particular place
The constant waves that lap up on a coast.
A laundry detergent
A yummy snack. (No. just no.)

Explanation

Question 2 of 19

1

What causes tides?

Select one of the following:

The gravitational force of the Moon, Sun, and Earth
Wind
Water Displacement
Dirty laundry

Explanation

Question 3 of 19

1

Select from the dropdown lists to complete the text.

Tide waves are the ( longest, shortest ) waves on earth: their wavelength is ( half, 1/3, 1/10, 2/3 ) of the Earth's circumference. These waves are known as ( forced, natural, rogue ) waves.

Explanation

Question 4 of 19

1

Select from the dropdown lists to complete the text.

The moon's gravity ( attracts, repels ) the ocean. Then the Motion of the Earth around the ( center of mass, midpoint, edge ) of the Earth-moon system causes a ( bulge, divot ) on the side of the earth ( opposite, facing ) the moon. Combined, this creates two ( bulges, divots ).

Explanation

Question 5 of 19

1

❌: the bulges are the crests of the planet-sized waves

❌: the troughs, the area between the bulges

Drag and drop to complete the text.

High tides

Low tides

Explanation

Question 6 of 19

1

Label the image

Drag an answer into the correct orange point.

Island exposed

Island submerged (evening)

Island high & dry

Inertia bulge

Gravity bulge

Island submerged (morning)

Explanation

Question 7 of 19

1

Lunar tides:

Select one of the following:

tides caused by gravitation & inertial interaction of the moon and Earth
tides caused by gravitation & inertial interaction of the sun and Earth
tides caused by Luna Lovegood, because she's great

Explanation

Question 8 of 19

1

Select from the dropdown lists to complete the text.

In a 24h solar day, the moon moves ( 12.2, 50, 10.2, 21.2 ) degrees eastward. The earth must rotate another ( 50, 12.2, 40, 10 ) minutes to again place the moon at the highest position.

Explanation

Question 9 of 19

1

The sun has a greater effect on Earth's tide than the moon.

Select one of the following:

True
False

Explanation

Question 10 of 19

1

❌: when earth, moon, and sun are all in a line. These are ❌, and correspond to the ❌ moons.

❌: When earth, sun, and moon form a right angle. Tide ❌ the lunar tide, and correspond with the ❌ moons.

Drag and drop to complete the text.

Spring tide

additive

new and full

Neap tide

diminishes

quarter

Explanation

Question 11 of 19

1

Select from the dropdown lists to complete the text.

Land masses obstruct tidal crests, diverting and ( slowing, quickening ) movement. This causes different patterns in the arrival of tidal crests and is influenced by ( basin shape, water depth, basin depth, salinity ).

Explanation

Question 12 of 19

1

❌ tides: two high tides and two low tides of nearly equal level each lunar day

❌ tides: on high and one low

❌ tides: successive high tides or low tides are of significantly different heights in the lunar day

Drag and drop to complete the text.

Semidiurnal

Diurnal

Mixed semidiurnal

Explanation

Question 13 of 19

1

Amphidromic points:

Select one of the following:

nodes at the center of ocean basins, no-tide points
nodes at the center of ocean basins, high-tide points

Explanation

Question 14 of 19

1

Tidal ranges increase with increasing distance from amphidromic points

Select one of the following:

True
False

Explanation

Question 15 of 19

1

Water flow into or out of bays and harbors is known as...

Select one of the following:

tidal current
tidal flow
waves
tidal waves

Explanation

Question 16 of 19

1

❌: water rushing into an enclosed area because of the rise in sea level as a tide crest approaches

❌: water rushing out because of the fall in sea level as the tide trough approaches

❌: a time of no currents, occurs at high and low tides when the current changes direction

Drag and drop to complete the text.

Flood current

Ebb current

Slack water

Tide current

Explanation

Question 17 of 19

1

Tidal friction is gradually slowing the Earth's rotation.

Select one of the following:

True
False

Explanation

Question 18 of 19

1

What is the intertidal zone?

Select one of the following:

The zone between the high tide and low tide
The zone in the middle of the high tide where there is a high concentration of life
The part of the beach where the water reaches during high tide, but not low tide
The final frontier

	Created by Jo O'Bar about 6 years ago

quiz covering tides from oceanography course at UWF

Question 1 of 19

What are tides?

Select one of the following:

Explanation

Question 2 of 19

What causes tides?

Select one of the following:

Explanation

Question 3 of 19

Select from the dropdown lists to complete the text.

Tide waves are the longest shortest( longest, shortest ) waves on earth: their wavelength is half 1/3 1/10 2/3( half, 1/3, 1/10, 2/3 ) of the Earth's circumference. These waves are known as forced natural rogue( forced, natural, rogue ) waves.

Explanation

Question 4 of 19

Select from the dropdown lists to complete the text.

Explanation

Question 5 of 19

❌: the bulges are the crests of the planet-sized waves ❌: the troughs, the area between the bulges

Drag and drop to complete the text.

Explanation

Question 6 of 19

Label the image

Drag an answer into the correct orange point.

Explanation

Question 7 of 19

Lunar tides:

Select one of the following:

Explanation

Question 8 of 19

Select from the dropdown lists to complete the text.

In a 24h solar day, the moon moves 12.2 50 10.2 21.2( 12.2, 50, 10.2, 21.2 ) degrees eastward. The earth must rotate another 50 12.2 40 10( 50, 12.2, 40, 10 ) minutes to again place the moon at the highest position.

Explanation

Question 9 of 19

The sun has a greater effect on Earth's tide than the moon.

Select one of the following:

Explanation

Question 10 of 19

❌: when earth, moon, and sun are all in a line. These are ❌, and correspond to the ❌ moons. ❌: When earth, sun, and moon form a right angle. Tide ❌ the lunar tide, and correspond with the ❌ moons.

Drag and drop to complete the text.

Explanation

Question 11 of 19

Select from the dropdown lists to complete the text.

Land masses obstruct tidal crests, diverting and slowing quickening( slowing, quickening ) movement. This causes different patterns in the arrival of tidal crests and is influenced by basin shape water depth basin depth salinity( basin shape, water depth, basin depth, salinity ).

Explanation

Question 12 of 19

❌ tides: two high tides and two low tides of nearly equal level each lunar day ❌ tides: on high and one low ❌ tides: successive high tides or low tides are of significantly different heights in the lunar day

Drag and drop to complete the text.

Explanation

Question 13 of 19

Amphidromic points:

Select one of the following:

Explanation

Question 14 of 19

Tidal ranges increase with increasing distance from amphidromic points

Select one of the following:

Explanation

Question 15 of 19

Water flow into or out of bays and harbors is known as...

Select one of the following:

Explanation

Question 16 of 19

❌: water rushing into an enclosed area because of the rise in sea level as a tide crest approaches ❌: water rushing out because of the fall in sea level as the tide trough approaches ❌: a time of no currents, occurs at high and low tides when the current changes direction

Drag and drop to complete the text.

Explanation

Question 17 of 19

Tidal friction is gradually slowing the Earth's rotation.

Select one of the following:

Explanation

Question 18 of 19

What is the intertidal zone?

Select one of the following:

Explanation

Question 19 of 19

Check all that apply to organisms in the intertidal zone

Select one or more of the following:

Explanation

Tide waves are the ( longest, shortest ) waves on earth: their wavelength is ( half, 1/3, 1/10, 2/3 ) of the Earth's circumference. These waves are known as ( forced, natural, rogue ) waves.

❌: the bulges are the crests of the planet-sized waves

❌: the troughs, the area between the bulges

In a 24h solar day, the moon moves ( 12.2, 50, 10.2, 21.2 ) degrees eastward. The earth must rotate another ( 50, 12.2, 40, 10 ) minutes to again place the moon at the highest position.

❌: when earth, moon, and sun are all in a line. These are ❌, and correspond to the ❌ moons.

❌: When earth, sun, and moon form a right angle. Tide ❌ the lunar tide, and correspond with the ❌ moons.

Land masses obstruct tidal crests, diverting and ( slowing, quickening ) movement. This causes different patterns in the arrival of tidal crests and is influenced by ( basin shape, water depth, basin depth, salinity ).

❌ tides: two high tides and two low tides of nearly equal level each lunar day

❌ tides: on high and one low

❌ tides: successive high tides or low tides are of significantly different heights in the lunar day

❌: water rushing into an enclosed area because of the rise in sea level as a tide crest approaches

❌: water rushing out because of the fall in sea level as the tide trough approaches

❌: a time of no currents, occurs at high and low tides when the current changes direction