Earth and Sun

What is Earth in relation to the Sun? Choose all that apply.

• Earth is the only planet that orbits the Sun.

• Earth is one of several planets that orbit the Sun.

• Earth is a satellite of the Sun.

• Earth is larger than the Sun.

If Earth rotated twice as fast, how would our daytime and nighttime change?

• Daytime and nighttime would be twice as long.

• Daytime and nighttime would be half as long.

• There would be no change in the duration of daytime and nighttime.

• Daytime would be longer, and nighttime would be shorter.

What is the imaginary line called that Earth rotates around?

• Equator

• Horizon

• Axis

• Orbit

What is one full rotation of Earth on its axis commonly known as?

• A year

• A month

• A week

• A day

How long does it take for Earth to complete one rotation on its axis?

• 12 hours

• 24 hours

• 36 hours

• 48 hours

What would happen if Earth did not spin on its axis?

• We would not have seasons.

• One half of Earth would always be in daylight and the other half in darkness.

• The Moon would not orbit Earth.

• Earth would not have gravity.

What is the imaginary line that goes through the center of Earth from top to bottom called?

• Equatorial Axis

• Rotational Axis (RA)

• Orbital Axis (OA)

• Axial Tilt

Which axis is tilted and goes through the North and South poles?

• Equatorial Axis

• Rotational Axis (RA)

• Orbital Axis (OA)

• Axial Tilt

What is the angle difference between the Earth's two axes known as?

• Equatorial Tilt

• Rotational Tilt

• Orbital Tilt

• Axial Tilt

Does the direction of Earth's axial tilt ever change?

• Yes, it changes daily.

• Yes, it changes seasonally.

• No, it never changes.

• Yes, it changes monthly.