Seasons, Tides and HR Diagram Review

Front

What are the four seasons?

Back

Spring, Summer, Autumn (Fall), Winter.

Front

What causes the seasons?

Back

The tilt of the Earth's axis and its orbit around the Sun.

Front

What is a tide?

Back

The rise and fall of sea levels caused by the gravitational forces of the Moon and the Sun.

Front

What is a spring tide?

Back

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

Front

What is a neap tide?

Back

A tide that occurs when the Sun and Moon are at right angles relative to the Earth, resulting in lower high tides and higher low tides.

Front

What is the HR Diagram?

Back

The Hertzsprung-Russell Diagram, a scatter plot of stars showing the relationship between their absolute magnitudes and stellar classifications.

Front

What spectral class does the Sun belong to?

Back

G.

Front

What is the difference between a star's brightness and temperature?

Back

Brightness refers to the amount of light emitted by a star, while temperature indicates how hot the star is.

Front

What hemisphere do we live in?

Back

Northern Hemisphere.

Front

What is the significance of the Earth's tilt?

Back

It affects the intensity and duration of sunlight received at different latitudes, leading to seasonal changes.