Understanding Time Zones and Longitude

This video tutorial explains the concept of time zones and their relation to longitude lines. It covers how time zones are determined by dividing the Earth into 15-degree longitudinal sections, each representing one hour of time. The tutorial also explains how time changes as one moves east or west across these zones, using the Prime Meridian and International Date Line as reference points. Practical examples illustrate how to calculate time differences when traveling across time zones.

What is the primary factor that determines the boundaries of time zones?

• Tropic of Cancer

• Equator

• Longitude lines

• Latitude lines

Which line is considered the starting point for measuring longitude?

• Prime Meridian

• Tropic of Capricorn

• International Date Line

• Equator

How many degrees of longitude does each time zone typically cover?

• 10 degrees

• 15 degrees

• 20 degrees

• 30 degrees

Which hemisphere is labeled with 'W' for its longitude degrees?

• Eastern Hemisphere

• Northern Hemisphere

• Southern Hemisphere

• Western Hemisphere

If you travel 30 degrees west from the Prime Meridian, how many hours do you subtract?

• 2 hours

• 3 hours

• 1 hour

• 4 hours

What happens to the time as you move east across time zones?

• Time increases

• Time remains the same

• Time resets

• Time decreases

If it is noon at the Prime Meridian, what time is it 45 degrees west?

• 1 PM

• 9 AM

• 11 AM

• 10 AM

What is the time difference between two time zones that are 30 degrees apart?

• 1 hour

• 2 hours

• 3 hours

• 4 hours

What is the significance of the International Date Line?

• It marks the start of a new day

• It is the longest longitude line

• It is located at 0 degrees longitude

• It divides the Earth into two equal halves

How many hours different is the International Date Line from the Prime Meridian?

• 15 hours

• 9 hours

• 6 hours

• 12 hours