Earth's Orbital Motion

Why does the celestial sphere "shift"?

• Because of the Earth's rotation around its axis

• Because of the Earth revolving around the Sun

• Both are true

• Neither are true

Tags

NGSS.MS-ESS1-1

In what ways does Earth move?

• It doesn't. It's stationary

• It rotates around its axis

• It revolves around the sun

• It revolves around the moon

Tags

NGSS.MS-ESS1-2

How was the "shifting" of the celestial sphere useful to people in ancient times?

• It allowed people to find predator hunting grounds

• It allowed people to navigate around the Earth more easily

• It allowed people to know when to harvest their crops

• It told us when to move the clocks back/forward one hour

Tags

NGSS.MS-ESS1-1

What is diurnal motion?

• The daily progress of the Sun and other stars across the sky.

• The 24 hour day. The basic social time unit

• A day measured by the stars

Tags

NGSS.MS-ESS1-1

How long is a solar day?

• 24 hours

• About 23 hours 56 minutes

• About 24 hours 4 minutes

How long is a sidereal day?

• 24 hours

• About 23 hours 56 minutes

• About 24 hours 4 minutes