Earth's Motion & Stars

Front

How many degrees will the Earth rotate in 10 hours?

Back

150 degrees.

Front

Why do the seasons change?

Back

Because the Earth’s axis is tilted relative to its orbit around the Sun.

Front

Define the path of the ecliptic.

Back

The path that Earth follows as it orbits the Sun.

Front

Which of the following is not true about the zodiac constellations?

Back

Zodiac constellations are only visible from the Northern Hemisphere.

Front

How is Polaris different from Sigma Octantis?

Back

Polaris is a star near the North Celestial Pole, visible in the Northern Hemisphere. Sigma Octantis is a faint star near the South Celestial Pole.

Front

What is the significance of the tilt of the Earth's axis?

Back

It causes the changing seasons as different parts of the Earth receive varying amounts of sunlight throughout the year.

Front

What is the celestial sphere?

Back

An imaginary sphere surrounding the Earth, onto which all celestial bodies can be projected.

Front

What are the zodiac constellations?

Back

A group of 12 constellations that the Sun appears to pass through during the year.

Front

What is the North Celestial Pole?

Back

The point in the sky that the North Pole of the Earth points towards, where Polaris is located.

Front

What is the difference between a planet and a star?

Back

A planet orbits a star and does not produce its own light, while a star generates light and heat through nuclear fusion.