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Order the cards to show the cosmic terms in increasing size

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Presentation on theme: "Order the cards to show the cosmic terms in increasing size"— Presentation transcript:

1 Order the cards to show the cosmic terms in increasing size

2 Wait until you see the objects as your zoom out and check your order
Scale of the Universe Wait until you see the objects as your zoom out and check your order

3 Universe Galaxy Cluster Galaxy Nebula Light year Solar System Red Giant The Sun White Dwarf Planet Moon Asteroid Space Shuttle Satellite

4 Learning Objectives By the end of this lesson you should be able to… Recall that our solar system is a small part of the Milky Way galaxy. Describe the scale of the universe and solar system placing some cosmic objects in size order. Explain the term light year and why it is a useful tool when measuring distances in space.

5 Now fill in the page in your booklet
Scale of the Universe Now fill in the page in your booklet Zoom in – Zoom Out

6 By the end of this lesson you should…
Learning Objectives By the end of this lesson you should… Recall that our solar system is a small part of the Milky Way galaxy. Describe the scale of the universe and solar system placing some cosmic objects in size order. Explain the term light year and why it is a useful tool when measuring distances in space. We are one of millions of solar systems within our galaxy Our galaxy is called The Milky Way Our galaxy is approximately The Milky Way is about 1,000,000,000,000,000,000 km across The nearest galaxy to us is Andromeda The light from Andromeda takes years to reach us There are believed to be billions of galaxies within the Universe

7 Physicists face a problem:
Learning Objectives By the end of this lesson you should… Recall that our solar system is a small part of the Milky Way galaxy. Describe the scale of the universe and solar system placing some cosmic objects in size order. Explain the term light year and why it is a useful tool when measuring distances in space. Physicists face a problem: How can we measure vast distances in space?

8 Units of Distance in Space
Learning Objectives By the end of this lesson you should… Recall that our solar system is a small part of the Milky Way galaxy. Describe the scale of the universe and solar system placing some cosmic objects in size order. Explain the term light year and why it is a useful tool when measuring distances in space. Units of Distance in Space Astronomical Unit (Au): Distance from the Earth to the Sun. Light Year: Distance that light travels in one (Earth) year Parsec: Equal to 3.26 light years

9 Units of Distance in Space
Learning Objectives By the end of this lesson you should… Recall that our solar system is a small part of the Milky Way galaxy. Describe the scale of the universe and solar system placing some cosmic objects in size order. Explain the term light year and why it is a useful tool when measuring distances in space. Units of Distance in Space Astronomical Unit (Au): Distance from the Earth to the Sun.

10 Units of Distance in Space
Learning Objectives By the end of this lesson you should… Recall that our solar system is a small part of the Milky Way galaxy. Describe the scale of the universe and solar system placing some cosmic objects in size order. Explain the term light year and why it is a useful tool when measuring distances in space. Units of Distance in Space Light Year: Distance that light travels in one (Earth) year Speed of light is a constant value in the vacuum of space (3 X 108 m/s). Calculate the distance of 1 light year in m and km

11 Units of Distance in Space
Learning Objectives By the end of this lesson you should… Recall that our solar system is a small part of the Milky Way galaxy. Describe the scale of the universe and solar system placing some cosmic objects in size order. Explain the term light year and why it is a useful tool when measuring distances in space. Units of Distance in Space Light Year: Distance that light travels in one (Earth) year s = d/t d = s X t d = 3 X 108 X (60 X 60 X 24 X 365) d = 9.5 X 1015 m

12 Learning Objectives By the end of this lesson you should… Recall that our solar system is a small part of the Milky Way galaxy. Describe the scale of the universe and solar system placing some cosmic objects in size order. Explain the term light year and why it is a useful tool when measuring distances in space. Speed of light: 3 X 108 m/s The next closest star to Earth (after the Sun) is Proxima Centauri at 4.37 light years away. Calculate the distance in m. The New Horizons probe that visited Pluto earlier in the year travelled 7.5 billion km. How far is this in light years?

13 Speed of light: 3 X 108 m/s d = 4.37 light years
Learning Objectives By the end of this lesson you should… Recall that our solar system is a small part of the Milky Way galaxy. Describe the scale of the universe and solar system placing some cosmic objects in size order. Explain the term light year and why it is a useful tool when measuring distances in space. Speed of light: 3 X 108 m/s d = 4.37 light years 1 light year = 9.5 X 1015 m d = 4.37 X 9.5 X 1015 d = 4.15 X 1016 m d = 7.5 X 109 d = 7.5 X 109 / 9.5 X 1015 d = light years

14 Learning Objectives By the end of this lesson you should… Recall that our solar system is a small part of the Milky Way galaxy. Describe the scale of the universe and solar system placing some cosmic objects in size order. Explain the term light year and why it is a useful tool when measuring distances in space. Speed of light: 3 X 108 m/s Even one of the most distant objects within our solar system is just a tiny fraction of a light year away while distant galaxies may be many millions of light years away

15 Scale of the Universe One to think about…. Zoom in – Zoom Out

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