Tides Flashcards

Questions and Answers

What is a spring tide?

A tide that occurs only during a full moon

A tide with the least difference between low and high tide

A tide with the greatest difference between high and low tide (correct)

A tide caused by the gravitational pull of the Earth

A spring tide occurs when the sun and moon are aligned with the Earth.

True

What is a neap tide?

A tide that does not occur

A tide with the least difference between low and high tide (correct)

A tide caused by the gravitational pull of the stars

A tide with the greatest difference between high and low tide

A neap tide occurs when the sun and moon pull at right angles to each other.

True Signup and view all the answers

What has the greatest influence on the tides?

The moon, because it is closer to the Earth. Signup and view all the answers

What causes the tides?

The gravitational pull of the moon and sun. Signup and view all the answers

What is high tide?

A bulge that occurs in the Earth's oceans when the Moon is overhead. Signup and view all the answers

Where are low tides located?

Locations between the bulges where the moon is not overhead. Signup and view all the answers

The number of tides that occur each day varies from?

Place to place. Signup and view all the answers

What factors can influence tidal patterns?

All of the above Signup and view all the answers

The difference in height between a high tide and low tide is called a?

Tidal range. Signup and view all the answers

Would Earth continue to have tides if there were no moon?

True Signup and view all the answers

During a full moon or new moon, the sun and moon's gravitational pull creates?

High tides that are very high and low tides that are very low. Signup and view all the answers

During what moon phases do spring tides occur?

New Moon and Full Moon. Signup and view all the answers

During what moon phases do neap tides occur?

First Quarter and Third Quarter. Signup and view all the answers

How long does it take for the moon to go from new/full moon phase to a quarter phase?

One week. Signup and view all the answers

How long does it take for the moon to go from new moon to full moon?

Two weeks. Signup and view all the answers

How often do both spring tides and neap tides usually occur?

Twice a month. Signup and view all the answers

Knowing when high and low tides occur in an area might help in?

Beach activities such as beach combing, shelling, sand castle building, and swimming. Signup and view all the answers

The revolution of the moon around the Earth takes about?

One month. Signup and view all the answers

The revolution of the Earth around the sun takes?

One year. Signup and view all the answers

The rotation of the Earth on its axis takes?

One day. Signup and view all the answers

Study Notes

Tides Overview

Tides are influenced by the gravitational pulls of the sun and moon, creating cyclical patterns of high and low water levels in oceans and seas.
The moon has the greatest influence on tides due to its proximity to Earth.

Spring Tides

Occur when the sun, moon, and Earth are aligned, resulting in the highest high tides and lowest low tides.
Occur during new and full moon phases.

Neap Tides

Occur when the sun and moon are at right angles to each other, leading to the least difference between high and low tides.
Occur during the first and third quarter moon phases.

Tidal Features

High tide is characterized by a water bulge directly under the moon.
Low tide occurs at locations between the bulges where the moon’s influence is weaker.
The tidal range refers to the height difference between high and low tides.

Frequency and Patterns

The number of tides can vary by location and is typically influenced by geographic features, such as coastlines and ocean floor shapes.
Spring and neap tides generally occur twice a month, aligning with the lunar cycle.

Moon Phases and Timing

It takes approximately one week for the moon to transition from new/full phases to quarter phases.
The moon takes about two weeks to go from new moon to full moon.
The moon completes a full revolution around Earth in about one month, while Earth’s revolution around the sun takes one year.

Practical Applications

Understanding tidal patterns aids in planning beach activities like swimming, beachcombing, building sandcastles, and shelling.

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Description

This quiz covers key concepts related to tides, including spring and neap tides. Learn the definitions and conditions for these important oceanic phenomena. Perfect for marine science students or anyone interested in oceanography.