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Match up the planet with its correct statement.

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Presentation on theme: "Match up the planet with its correct statement."— Presentation transcript:

1 Match up the planet with its correct statement

2

3 Satellites Write the heading…

4 The Moon What is the name of earths only natural satellite? What is the name of earths only natural satellite? How long does it take to complete one orbit? How long does it take to complete one orbit? Answer the questions in full sentences, into your book…

5 Uses of satellites Communications Communications Spying (remote sensing) Spying (remote sensing) Forecasting the weather Forecasting the weather Global Positioning (GPS ) Global Positioning (GPS ) Scientific research Scientific research

6 Uses of satellites For each use of satellite find out Different uses for them Different uses for them How high above the earth they orbit How high above the earth they orbit How long their orbit lasts How long their orbit lasts The name of one example The name of one example www.thetech.org/exhibits/online/satellite

7 Communications TV signals TV signals Phone signals Phone signals Radio signals Radio signals Communications satellites are in a GEOSTATIONARY orbit.

8 Geostationary orbits 1. How long does a geostationary satellite take to complete one orbit? 2. A geostationary orbit has a radius of 42100km. How long, in km, is one orbit? (Hint: circumference of a circle = 2 x π x r) 3. How fast is a geostationary satellite travelling? (Hint: speed = distance ÷ time)

9 Weather forecasting Looking at weather patterns Looking at weather patterns In order to predict the weather we must see large sections of the globe in a small time. To do this weather forecasting satellites are in a POLAR orbit.

10 Polar orbits 1. About how long does a weather satellite take to complete one orbit? 2. A polar orbit has a radius of about 500km. How long, in km, is one orbit? (Hint: circumference of a circle = 2 x π x r) 3. How fast is a polar orbiting satellite travelling? (Hint: speed = distance ÷ time) 4. A polar orbiting satellites actually has to travel at about 27000km/h. Why do you think they travel so fast?

11 Now try these Find a picture of Hull from a satellite right now Find a picture of Hull from a satellite right now www.fourmilab.ch/earthview/satellite.html Find a satellite that you will be able to see pass over tonight Find a satellite that you will be able to see pass over tonight www.heavens-above.com Construct your own satellite Construct your own satellite www.thetech.org/exhibits/online/satellite/

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