Earth's Tides

Front

What causes Earth's tides?

Back

The gravitational pull of the moon and the sun causes Earth's tides.

Front

True or False: The sun's gravitational pull does not affect Earth's tides.

Back

False

Front

Why does the moon have a greater effect on Earth's tides than the sun?

Back

Because the moon is closer to Earth.

Front

What is a spring tide?

Back

A spring tide is a tide that occurs during a full moon or new moon when the gravitational forces of the moon and sun align, resulting in higher high tides and lower low tides.

Front

What is a neap tide?

Back

A neap tide is a tide that occurs during the first and third quarters of the moon when the gravitational forces of the moon and sun are perpendicular, resulting in lower high tides and higher low tides.

Front

How often do normal tides occur?

Back

Normal tides occur twice a day.

Front

What phase of the moon do spring tides occur?

Back

Spring tides occur during full moons and new moons.

Front

What phase of the moon do neap tides occur?

Back

Neap tides occur during the first and third quarters of the moon.

Front

What is the difference between high tide and low tide?

Back

High tide is the maximum level of the sea reached at a given time, while low tide is the minimum level of the sea.

Front

What is the role of the moon in tides?

Back

The moon's gravitational pull creates bulges in the Earth's oceans, leading to high and low tides.