Law of Universal Gravitation

HEY!

for those who weren't in the class.. here's what we did. (''.)

STUDY GUIDE

8.1

Kepler's Law of Planetary Motion

• predict
• Earth
• sun
• 3
• ellipses
• sun
• areas
• fastest
• slowest
• periods
• cubes
• sun
• (TA/TB)^2 = (RA/RB)^3
• radius
• period
• radius

Universal Gravitation

• inversely
• square
• FG= GM1M2/ d^2
• force
• d
• constant
• doubled
• halved
• 1/4

Newton's Use of His Law of Universal Gravitation

• 2nd
• Kepler's

Weighing Earth

• Henry Cavindish
• Attraction
• Universal Gravitation
• 6.7x10^-11 N.m^2/kg^2

8.2

Motion of Planets and Satellites

• parabolic
• vertical
• horizontal
• horizontal
• Earth
• orbit
• Uniform Circular Motion

Weight and Weightlessness

• acceleration
• inverse
• 2nd
• decreases
• freefall
• upward
• weightless

The Gravitational Field

• gravitational field
• gravity
• inversely
• square

Einstein's Theory of Gravity

• force
• space
• curved
• accelerated
• relativity
• sun
• black hole
• mass

8.1 page 17

1. true
2. true
3. false, mathematical
4. true
5. false, sun
6. false, area
7. false, ratio
8. false, first and second only
   
9. they are equal
10. point 1
11. period and radius of another moon
12. c.
13. a.
14. d.
15. b.
16. 2F
17. 2F
18. 4F
19. 1/4F
20. 4F

We also need to answer pags 19&26!

-patrickd.