1. Our
Solar
System
PAGE 16

2. SWBAT: Determine the difference between a Jovian and Terrestrial Planet and provide examples of each type of planet.

3. DO NOW: Describe how many minutes later each day the moon rises
DO NOW: Describe how many minutes later each day the moon rises. Describe how much later the tides are each day.

4. The Planets

5. TERRESTRIAL PLANETS TERRESTRIAL PLANET EXAMPLES
rocky planet that is composed primarily of silicate rocks or metals
Mercury
Venus
Earth
Mars

6. JOVIAN PLANETS JOVIAN PLANETS EXAMPLES
gas giant (sometimes also known as a Jovian planet) is a large planet that is not primarily composed of rock or other solid matter.
Jupiter
Saturn
Uranus
Neptune

7. The total mass of all the asteroids is less than that of the Moon.
rocky objects with round or irregular shapes
lie in a belt between Mars and Jupiter
The total mass of all the asteroids
is less than that of the Moon.

8. ASTEROID BELT

9. Asteroid Belt: located roughly between the orbits of the planets Mars and Jupiter. It is occupied by asteroids or minor planets.

10. shooting stars

11. METEORITE: A meteorite originates in outer space as a solid piece of debris from such sources as asteroids or comets that survives its impact with the Earth's surface.

12. only visible when
they are close to
the sun

13. Explain the difference between the geo- and helio-centric
models of the solar system.
Helio-centric
Geo-centric
Earth-
centered
Sun-
centered

14. When does a planet move
slowest in its orbit?
When furthest
from Sun
When does a planet move
fastest in its orbit?
When closest
to Sun

15. Draw a line across the table between
the terrestrial and jovian planets and label.

16. Which are more dense?
Jovian or terrestrial

17. Which have more Mass
Jovian or Terrestrial ?

18. Which have longer periods of revolution?
Jovian or terrestrial

19. Which are larger in size on average ?
Jovian or terrestrial

20. Which planet has the longest day?
Venus

21. Which planet has the longest year?
Neptune

22. Which are more dense
Terrestrial or Jovian?

23. Which have more moons ?
Jovian or terrestrial

24. Which have longer periods of revolution?
Jovian or terrestrial

25. Which are larger in size on average ?
Jovian or terrestrial

26. Which planet has the longest day?
Venus

27. Which planet has the longest year?
Neptune

28. EXIT: Determine the distance of the asteroid belt using your ESRT
Homework: Begin solar system data handout

29. Eccenticity
SWBAT: Calculate the eccentricity of a planets orbit to determine if the orbit is more round or more elliptical.

30. Do Now: Provide how we know today that our solar system supports a heliocentric model.

31. Shape of the Earth’s Orbit:
Our Earth’s orbit is a slightly eccentric ellipse. An eccentricity very close to zero (0.017)
Question: How do we know?
Eccentricity: how flat an ellipse is number between 0 and 1
-the flatter the ellipse, the higher the eccentricity (number closer to 1) Lower eccentricity more round orbit closer to 0

32. Calculate the eccentricity
of the ellipse below:
length of major axis
Formula:
eccentricity = distance between foci
length of major axis

33. A circle has an eccentricity of__________, and is least eccentric.
The more oval an ellipse is the ______Eccentric it is.

34. Which planet has the least
perfectly circular orbit?
Mercury

35. Which planet has the most
perfectly circular orbit?
Venus

36. EXIT: Describe why eccentricity determines the length of our seasons?
Begin eccentricity practice handout

37. Force of Gravity and Velocity