1st Period Corrections Unit 5

Front

What is a tide?

Back

A tide is the regular rise and fall of sea levels caused by the gravitational forces exerted by the Moon and the Sun.

Front

How often do high and low tides occur?

Back

High and low tides generally occur twice a day, resulting in 2 high tides and 2 low tides.

Front

What is the time interval between high and low tides?

Back

The time interval between high and low tides is approximately 6 hours.

Front

What causes the seasons on Earth?

Back

The seasons are caused by the Earth's revolution around the Sun and the tilt of its axis.

Front

What is a revolution in terms of Earth's movement?

Back

A revolution is the movement of the Earth around the Sun in an elliptical orbit, taking about 365.25 days to complete.

Front

What is a neap tide?

Back

A neap tide is a small tide that occurs when the Sun and Moon are at right angles to each other, resulting in lower high tides and higher low tides.

Front

What is a spring tide?

Back

A spring tide is a large tide that occurs when the Earth, Moon, and Sun are aligned, resulting in higher high tides and lower low tides.

Front

What is the difference between neap tides and spring tides?

Back

Neap tides are smaller and occur when the Sun and Moon are at right angles, while spring tides are larger and occur when they are aligned.

Front

What is the role of the Moon in tides?

Back

The Moon's gravitational pull is the primary force that causes tides on Earth.

Front

What is the role of the Sun in tides?

Back

The Sun also exerts a gravitational pull on Earth, affecting the height of tides, but to a lesser extent than the Moon.