Tides and Lunar Phases

The video tutorial explores tidal patterns in Newport, Rhode Island, focusing on the month of June 2016. It explains the concept of semi-diurnal tides, where two high and two low tides occur in a lunar day. The tutorial discusses the variability in tidal ranges over a month, influenced by the positions of the moon, earth, and sun. It highlights how lunar phases, such as new and full moons, lead to spring tides with larger tidal ranges, while first and third quarters result in neap tides with smaller ranges. The periodicity of these tides is also covered.

What is plotted on the y-axis of the graph discussed in the video?

• Time in hours

• Water height in feet

• Tidal range

• Lunar phases

How many high and low tides occur in a semi-diurnal tide within a lunar day?

• Three high tides and three low tides

• Two high tides and two low tides

• One high tide and one low tide

• Four high tides and four low tides

What is the duration of a lunar day?

• 24 hours and 50 minutes

• 23 hours and 50 minutes

• 25 hours

• 24 hours

What is the term used to describe the difference between high tide and low tide?

• Tidal cycle

• Tidal range

• Tidal height

• Tidal phase

During which moon phase is the moon positioned directly between the Earth and the Sun?

• Third quarter

• First quarter

• Full moon

• New moon

What is the relationship between the Earth, moon, and Sun during a full moon?

• The Earth and moon are side by side

• The Earth is between the moon and the Sun

• The moon is between the Earth and the Sun

• The Sun is between the Earth and the moon

What type of tides occur when the lunar and solar tides constructively interfere?

• Diurnal tides

• Spring tides

• Mixed tides

• Neap tides

What is the periodicity between spring tides?

• Every two weeks

• Every month

• Every three weeks

• Every week

What happens to the tidal range during neap tides?

• It increases

• It becomes unpredictable

• It decreases

• It remains constant

Which lunar phases result in neap tides?

• Full moon and first quarter

• First quarter and third quarter

• New moon and third quarter

• New moon and full moon