Maps And Globes Flashcards
(43 cards)
What is an atlas?
An atlas is a book of maps.
What kind of maps are there?
World maps
Street maps
Road maps
What are world maps?
World maps show the borders of countries and provinces, as well as landmarks and major cities.
What are road maps?
Road maps focus on roads and routes between settlements.
What are street maps?
Street maps show specific routes within a settlement. It also shows places like schools and hospitals.
What are satellite images used for?
They show us images of the world from space.
They are used to help forecast the weather, to make maps, to show the damage caused by natural disasters and to examine how land is used.
What are lines of longitude?
They run from North to South. The main line is the Greenwich Meridian.
What are lines of latitude?
They run from East to West. The main line is the Equator.
How many hemispheres can we divide the world up into?
Four
How would we divide the world into four hemispheres?
We can divide the world into the Western and Eastern hemispheres along the Greenwich Meridian, and into the Northern and Eastern hemispheres along the equator.
What are time zones?
Time zones are the different areas around the Earth that have different times, because of the way the sun’s rays hit the Earth.
How many degrees of longitude equal an hour of time difference?
15°
How many time zones are there?
There are 24 time zones, and 24 hours in a day.
In which direction do we lose an hour, and in which direction do we gain an hour?
Time increases to the East, and decreases to the West.
What does ELA mean?
East Later Add
What does WES mean?
West Earlier Subtract
How do we work out the time difference?
Draw a diagram
Work out the difference in longitude
Work out the difference in time
Find out the exact time
What is meant by draw the diagram for time calculations?
Draw a diagram to help you figure out where you start from, where you want to be, and to find out whether or not you need to cross the Greenwich Meridian.
How do you work out the difference in longitude for time calculations?
If both places are on the same side of the Meridian, then the difference is found by subtracting the two. If they are on opposite sides of the Greenwich Meridian, then you will have to add the two together.
How do you work out the difference in time for time calculations?
Divide the difference in latitude by 15° to find how many hours difference there is.
How do you find out the exact time in time calculations?
Remember which direction you are going, is it West or East? If it is East add the time difference to your original time. If it is West, subtract the time difference from the original time.
Work out the following time calculation:
Johnny is in Paris (10° E), but tomorrow he will be going to New York (75° W). His flight arrives at 14:30 in the Paris time zone. What time will it be in the New York time zone?
Johnny is travelling West. He is crossing over the Greenwich Meridian.
Since the places are on opposite sides of the Greenwich Meridian, we must add the two together: 75°+10°°=85°
85° divided by 15°=5 hours and 36 minutes
New York is West of Paris, so 14:30-5:36
The time will be 8:54 in New York time
Work out the following time calculation:
Andrea is in Berlin (25° E), but tomorrow she will be going to Tokyo (90° E). Her flight arrives at 21:50 in the Berlin time zone. What time will it be in the Tokyo time zone?
Andrea is travelling East. She is not crossing over the Greenwich Meridian.
Since the places are on the same side of the Greenwich Meridian, we must subtract the two:
90°-25°=65°
65° divided by 15°= 4 hours and 18 minutes
Tokyo is East of Berlin so 21:50+4:18
The time will be 02:18 the next morning.
What is the International Date Line?
It is the line from which all time is taken. Governments have adjusted the time zones to fit their countries to make it more convenient, so the time zones are not completely straight.
