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Social Studies
5th -
6thgrade
Calculating Time using Lines of Longitude
8 questions
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- 1. Multiple Choice
To calculate the difference in time between two places you need to know:
That there are 15 degrees in an hour
The difference in the degrees of longitude between the two places
What time it is at the initial location
All of the above
- 2. Multiple Choice
When it is Noon (12pm) in London (0° Longitude), what time is it in New York at approximately 75°W?.
7:00 a.m.
7:00 p.m.
6:00 a.m.
6:00 p.m.
- 3. Multiple Choice
When it is Noon (12pm) in London, it is 10pm in Sydney, Australia. Dan in London rings his friend Boski in Sydney at 15.30pm on Christmas Day. What time is it in Sydney?
1:30 a.m. December 24th
1:30 a.m. December 25th
1:30 a.m. December 26th
13:30 hours December 26th
- 4. Multiple Choice
San Francisco is approximately 120° west of London. An observer in London sees a clock at 15.30. How long will it be before a clock in San Francisco displays the same time?
10 hours
24 hours
12 hours
8 hours
- 5. Multiple Choice
f it is 12 noon at 15 degrees west longitude, what time is it at the prime meridian?
1:00 p.m.
1:00 a.m.
12:00 p.m.
11:00 a.m.
- 6. Multiple Choice
You are traveling east from Japan to San Diego. As you are just about to fly across the International Dateline (IDL), it is 8 AM on Wednesday. What time is it right after you cross the IDL?
8:00 p.m. on Wednesday
12:00 p.m. on Wednesday
8:00 a.m. on Thursday
8:00 a.m. on Tuesday
- 7. Multiple Choice
If it is 4 PM at 105 degrees east longitude, what time is it at 60 degrees east longitude?
7:00 p.m
12:00 noon
1:00 p.m.
3:00 pm.
- 8. Multiple Choice
When a person travels eastwards across the International Date Line he/she______
crosses into another climatic zone
puts his watch forward
puts his watch backward
does not change the time on his or her watch
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