1. Bell Ringer 4.24.18 An orbit is movement in a … Linear movement
Rotational movement
Revolution movement
Random movement

2. Bell Ringer 4.24.18 Revolution movement An orbit is movement in a …
Linear movement
Rotational movement
Revolution movement
Random movement

3. Chapters 5 & 6 GSE

4. NEWS HOMEWORK DUE NOW! REPORT CARDS – DISTRIBUTION THIS FRIDAY
OVERALL BELL RINGER
PERIOD % 82%
PERIOD % 97%
PERIOD % 88%
PERIOD % 78%
PERIOD % 91%
PROJECT PRESENTATIONS DUE – MAY

5. video

6. Gravity and orbit Gravity
Is a force that attracts (pulls) objects towards one another.
The more the mass the greater the pull
The lesser the distance the greater the pull

7. Gravity and orbit Orbit
Is the path an object (planet/satellite) take around another object
Objects orbit one another because of gravitational attraction (pull)

8. Gravity and orbit Newton’s First law of motion
An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.
Also known as the Law of Inertia

9. Gravity and orbit Orbital Paths
Most planets follow an elliptical (oval) path.
Very eccentric
Mercury
Was Pluto
Less eccentric
Venus
Neptune

10. Phases of the moon

11. Phases of the moon Moon phases
The position of the Sun and moon make the different phases
Waxing is increasing light on moon – toward full
Waning is decreasing light on moon – toward new

12. Phases of the moon

13. Phases of the moon
Why do we call it 1st or 3rd quarter when it is ‘half’ a moon that is visible?
Because it is ¼ and ¾ of the 360 degree orbit.

14. Phases of the moon Draw this picture

15. Close
Do the Northern and Southern hemisphere have the same seasons at the same time?
No – Northern and Southern hemisphere have complete opposite seasons

16. Bring your electronics