2. Created by Mildred

3. $100 BasicsOrbitsUniverseSolar Syst.Stars $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 Jeopardy

4. How old is the solar system? 4.5 billion years

5. When an object is moved to a higher position, what will increase? Its potential energy

6. What does it mean if the light from a star is shifted towards the blue end of the spectrum? The star is moving towards the observer.

7. The movement (change in direction of swing) of the Foucault pendulum indicates that...... The earth is rotating

8. Gamma rays Which kind of electromagnetic waves have the shortest wavelength?

9. The shape of the earth's orbit is best described as a Slightly eccentric ellipse

10. What term refers to the position of the earth when it is closest to the sun? Perihelion

11. When the earth is at aphelion, the apparent size of the sun will be Smallest

12. DAILY DOUBLE DAILY DOUBLE

13. What is the relationship between a planets distance from the sun and its period of rotation? There is NO relationship.

14. As distance from the sun increases, the rate of revolution of the planets....... Decreases

15. How old is the universe? 12 to 14 billion years

16. What is the most widely accepted theory which explains the origin of the universe? The Big Bang theory

17. A collection of 100 billion stars held together by gravity is known as A galaxy

18. A cloud of gas and dust in space is...... A nebula

19. The brightness of a star independent of its distance is Luminosity

20. What is the source of power for the sun? (hydrogen) FUSION

21. At what rate does the earth revolve around the sun? About 1 o /day

22. Which planet has the highest density? Earth

23. On which planet is a day longer than a year? Venus

24. What is located in the space between Mars and Jupiter? The asteroid belt

25. What determines the color of a star? It's temperature

26. An exploding star is called a (super) nova

27. Which star is 10,000 times brighter than the sun and has a surface temperature of 3800 o C Betelgeuse

28. What color is Polaris Yellow

29. How long does it take the sun to rotate on its axis? 27 days