Understanding Earth's Rotation and Time Zones

How long does it actually take for the Earth to complete one full rotation?

• 23 hours 50 minutes

• 23 hours 56 minutes and 4 seconds

• 24 hours and 4 seconds

• 24 hours

How many degrees does the Earth rotate in one hour?

• 30 degrees

• 10 degrees

• 20 degrees

• 15 degrees

What is the purpose of lines of longitude?

• To measure altitude

• To divide the Earth into time zones

• To track ocean currents

• To mark the equator

What is the Terminator line?

• A line dividing the Earth into hemispheres

• A line marking the equator

• A line dividing day and night

• A line indicating the prime meridian

What happens at dusk according to the Earth's rotation?

• The Sun is at its highest point

• The Sun is low in the sky before night

• The Sun is rising

• The Sun is setting in the east

How many degrees does the Earth rotate in 12 hours?

• 180 degrees

• 360 degrees

• 45 degrees

• 90 degrees

What is the significance of 12:00 p.m. on the clock applied to Earth's rotation?

• It represents noon when the location receives sunlight

• It shows the end of the day

• It indicates midnight

• It marks the start of the day

How many time zones does the United States have?

• Five

• Six

• Four

• Three

What is the starting point for timekeeping purposes?

• The International Date Line

• Greenwich Mean Time

• The prime meridian

• The equator

What happens to time as you travel east from the prime meridian?

• Time gets earlier

• Time remains the same

• Time resets to zero

• Time gets later