Earth’s Orbit & Rotation

Front

What is the time of day when shadows are shortest?

Back

Noon.

Front

What causes the sun to appear to move across the sky?

Back

Earth's rotation on its axis.

Front

What is the reason for the existence of time zones?

Back

Earth's rotation on its axis.

Front

What phenomenon provides evidence against the geocentric model of the universe?

Back

Stellar parallax.

Front

How long does it take for the Earth to complete one orbit around the sun?

Back

365.25 days.

Front

What is the shape of Earth's orbit around the sun?

Back

Elliptical.

Front

What is the tilt of Earth's axis, and how does it affect seasons?

Back

Approximately 23.5 degrees; it causes seasonal changes.

Front

What is the difference between rotation and revolution in terms of Earth's movement?

Back

Rotation is the spinning of Earth on its axis; revolution is the orbit of Earth around the sun.

Front

What is the term for the imaginary line that runs from the North Pole to the South Pole?

Back

Axis.

Front

What is the effect of Earth's rotation on the appearance of the stars in the night sky?

Back

Stars appear to move across the sky due to Earth's rotation.