Understanding Tides

The video explains tides, their causes, and the tidal cycle. Tides are the rise and fall of ocean waters due to the gravitational pull of the moon and sun. The video covers the timing of tides, the effect of Earth's rotation, and factors affecting tidal range. It also discusses spring and neap tides, which occur due to the alignment of the Earth, moon, and sun.

What primarily causes the tides on Earth?

• Wind patterns

• Gravitational pull of the moon

• Earth's rotation

• Ocean currents

What is the term for the highest level of ocean water during a tide?

• Low tide

• Neap tide

• Spring tide

• High tide

How does the moon's gravitational pull affect the Earth's oceans?

• It causes water to evaporate

• It stops ocean currents

• It increases water temperature

• It creates high tides on both sides of the Earth

How long does it take for one complete cycle of high and low tides?

• 12 hours and 25 minutes

• 24 hours

• 48 hours

• 6 hours

Why does the high tide occur about 50 minutes later each day?

• The sun's position changes

• The moon rises later each day

• The Earth's rotation slows down

• Ocean currents shift

What are spring tides?

• Tides with the smallest range

• Higher than normal tides during full and new moons

• Tides that occur during the first and last quarter of the moon

• Tides that occur every day

When do neap tides occur?

• When the Earth is closest to the sun

• During the first and last quarter of the moon

• When the Earth, moon, and sun are aligned

• During full moons

How does the distance between the Earth and the moon affect tides?

• It alters the temperature of the water

• It affects the strength of the tides

• It changes the color of the ocean

• It has no effect on tides

What happens to tidal ranges when the Earth is closest to the sun?

• They disappear

• They increase

• They remain the same

• They decrease

What is the term for the point when the moon is closest to the Earth?

• Apogee

• Perigee

• Aphelion

• Perihelion