Astro Chapter 1 Test A

Directly above Earth's equator lies the ______________ in the sky.

• North Celestial Pole

• South Celestial Pole

• Celestial equator

• ecliptic

All celestial objects rise in the east and set in the west because

• Earth is rotating from east to west.

• Earth is rotating from west to east.

• Earth is orbiting around the Sun from east to west.

• the celestial sphere is rotating from east to west.

What is the ecliptic?

• the line of the solar and lunar eclipses on the celestial sphere

• the extension of Earth's path on the celestial sphere

• the elliptical shape of Earth's orbit around the Sun

• All of these choices are correct.

Tags

NGSS.MS-ESS1-1

Suppose that Earth's spin would suddenly reverse direction, but the direction of Earth's motion around the Sun was preserved. Which of the following changes would you expect to observe?

• The Sun would rise in the west and set in the east.

• The stars would rise in the west and set in the east.

• The planets would rise in the west and set in the east.

• All of these would be observed.

• None of these choices is correct.

What is the celestial sphere?

• an observatory dome

• the Sun

• Earth

• the imaginary sphere of the sky, on which stars lie

Constellations are _________.

• fixed patterns of stars on the celestial sphere

• groups of stars that are close to each other in space

• stars that neither rise nor set

• stars representing the path of the Sun through the sky

• animals that look like groupings of stars

Stars in a constellation _________.

• are close to one another in space

• all formed at about the same time

• neither rise nor set

• are in the same direction in the sky

• None of these choices is correct.

Over the course of a single night, stars move overhead due to _________.

• their motion around Earth

• the rotation of Earth on its axis

• the motion of the Sun around the galaxy

• the rotation of the celestial sphere

• the tilt of Earth’s axis

The North Celestial Pole is located _________.

• directly above Earth’s equator

• directly overhead

• at the geographic North Pole

• directly above the geographic North Pole

• at the center of the celestial sphere

The star nearest the North Celestial Pole is ____.

• Vega

• Thuban

• Denebola

• Polaris

• Mizar