6.9B Tides D1

Front

What are tides?

Back

Tides are the regular rise and fall of sea levels caused by the gravitational forces exerted by the Moon and the Sun on Earth.

Front

What causes spring tides?

Back

Spring tides occur when the Earth, Moon, and Sun are aligned, which happens during the new moon and full moon phases.

Front

What causes neap tides?

Back

Neap tides occur when the Moon is at a right angle to the Earth and Sun, which happens during the first and third quarter phases of the Moon.

Front

How many high tides occur in a day?

Back

Typically, there are two high tides in a day.

Front

What is the difference between spring tides and neap tides?

Back

Spring tides are higher than average and occur when the Earth, Moon, and Sun are aligned, while neap tides are lower than average and occur when the Moon is at a right angle to the Earth and Sun.

Front

Which celestial body has a greater effect on Earth's tides?

Back

The Moon has a greater effect on Earth's tides than the Sun.

Front

What is a full moon tide?

Back

A full moon tide is a type of spring tide that occurs when the Moon is full and aligned with the Earth and Sun.

Front

What is a new moon tide?

Back

A new moon tide is a type of spring tide that occurs when the Moon is new and aligned with the Earth and Sun.

Front

What is the role of the Sun in tides?

Back

The Sun also exerts gravitational force on Earth, contributing to the tides, but its effect is less than that of the Moon.

Front

What happens to tides during a spring tide?

Back

During a spring tide, the difference between high and low tide is greater, resulting in higher high tides and lower low tides.