Question

longitude/time zones practice

1. your time is 2:00 pm, prime meridian time is 10:00 am. what is your longitude?

1. your time is 9:00 am, prime meridian time is 3:00 pm. what is your longitude?

1. your time is 5:00 pm, prime meridian time is 4:00 pm. what is your longitude?

1. your time is 9:00 pm, prime meridian time is 2:00 pm. what is your longitude?

1. it is 2:00 pm at the prime meridian and you are located at 30°w longitude. what time is it where you are?

1. it is 2:00 pm at the prime meridian and you are located at 45°e longitude. what time is it where you are?

1. it is 10:00 am at the prime meridian and you are located at 60°w longitude. what time is it where you are?

1. it is 10:00 am at the prime meridian and you are located at 90°e longitude. what time is it where you are?

Explanation:

Step1: Time difference calculation

The Prime Meridian (0° longitude) is the reference for time zones. Time increases east of the Prime Meridian and decreases west of it. The Earth rotates 360° in 24 hours, so 15° per hour (360/24 = 15°) and 1° per 4 minutes.

Question 1

Step1: Calculate time difference
Your time is 2:00 pm, Prime Meridian time is 12:00 pm. Time difference = 2 hours ahead.
Step2: Calculate longitude
15° per hour, so 2*15 = 60°E.

Question 2

Step1: Calculate time difference
Your time is 9:00 am, Prime Meridian time is 3:00 pm. Time difference = 6 hours behind.
Step2: Calculate longitude
15° per hour, so 6*15 = 90°W.

Question 3

Step1: Calculate time difference
Your time is 5:00 pm, Prime Meridian time is 4:00 pm. Time difference = 1 hour ahead.
Step2: Calculate longitude
15° per hour, so 115 = 90°E? No, 15° per hour: 115=15°E.

Question 4

Step1: Calculate time difference
Your time is 9:00 pm, Prime Meridian time is 2:00 pm. Time difference = 7 hours ahead.
Step2: Calculate longitude
15° per hour, so 7*15 = 105°E.

Question 5

Step1: Determine time difference
30°W longitude. 15° per hour, so 30/15 = 2 hours behind.
Step2: Calculate local time
Prime Meridian time is 2:00 pm minus 2 hours = 12:00 pm.

Question 6

Step1: Determine time difference
45°E longitude. 15° per hour, so 45/15 = 3 hours ahead.
Step2: Calculate local time
Prime Meridian time is 2:00 pm plus 3 hours = 5:00 pm.

Question 7

Step1: Determine time difference
60°W longitude. 15° per hour, so 60/15 = 4 hours behind.
Step2: Calculate local time
Prime Meridian time is 10:00 am minus 4 hours = 6:00 am.

Question 8

Step1: Determine time difference
90°E longitude. 15° per hour, so 90/15 = 6 hours ahead.
Step2: Calculate local time
Prime Meridian time is 10:00 am plus 6 hours = 4:00 pm.

Answer:

1. 60°E
2. 90°W
3. 15°E
4. 105°E
5. 12:00 pm
6. 5:00 pm
7. 6:00 am
8. 4:00 pm