IB Physics .:. Go Up

Relativity and Astrophysics

Block

Class

Due on this class

3/4

Mar 4/5

•Web Page for research    •Lessons

•IB Review:

1.        The test

2.        How to review

3.        What we will review when

 

1

Mar 6/7

•The turn of the century in Physics

•The absolute reference frame

•The Michelson-Morley experiment

•Einstein's Gedanken

•The two postulates of Special Relativity

•Simultaneity

•Time Dilation

•The Twin Paradox and relative time

Read:  26.1-5

 

2

Mar 10/11

 

•Length Contraction and 4-D space-time (S:26.6-7)

•Mass Dilation and the ultimate speed limit of the Universe (S:26.8,9)

•Relativistic addition of velocities (S:26-11)

Read: 26.6-9

Check #1: 26: 3, 6(.773c), 8(.141c), 12(.789c)

3

Mar 12/17

•Mass and energy: Relativistic kinetic energy (S:26.10)

•PreQuiz 26.1 – Special relativity

•Intro to Astrophysics

Read:  26.10-11

Check #2: 26: 2(91.5m), 4(49.9ly), 11, 13, 14(.866c), 17, 45, 47

4

Mar 18/19

•Skill Set 26.1

•The Structure of the Universe:

•Our solar system/Galaxy

Read:  26.12,13

Check #3: 26: 18(1.6x10-13J), 21, 23, 26(2.23x10-9J,7.91x10-18kgm/s ), 28(1.22x10-10J, 7.55x10-19kgm/s), 31

5

Mar 20/21

•The Structure of the Universe:

• /Nebulae/Clusters/Groups/Superclusters

•Units of distance:

•Astronomical Units (au) /Parsecs (pc) /Light Years

Read:  33.1

 

6

Mar 31/ Apr 1

•Stars: Part One - Brightness and Distance

•Absolute Luminosity

•Apparent Brightness

•Apparent and absolute magnitude

•Wien’s Law

•H-R diagrams

Read:  33.2

Check #4: 33: 1, 2(12 ly), 3, 4(.042”, 1.2x10-5 o), 5, 6(82 Y)

7

Apr 2/3

•Stars: Part Two - Stellar Evolution

•Birth

•Main sequence

•Red giants

•Supernova? Pulsar? Neutron Star? Black Holes? White Dwarves

Read:  33.2

Check #5: 33: 9, 32(1.1 mm), Astro: 1-6

IB Review –Papers 1 and 2 completed and marked using mark scheme

8

Apr 4/7

•The distance ladder

•Measuring the AU/Measuring Parsecs

•Using H-R diagrams

•Variable stars: RR Lyrae, Cepheids

•Type I Supernovae/Galaxy brightness

Read:  33.3

Check #6: 33: 36({T increases, L const, size decreases}, {T const, L decreases, size decreases}, {T decreases, L increases, size increases}), 37,  Astro: 7-14

9

Apr 8/9

•General relativity

•Principle of equivalence

•Curved space

•Black holes and the Schwarzschild radius

Read:  33.3-4

 

10

Apr 10/14

•Expanding Space

•Olber’s Paradox/steady state

•Redshift

•Hubble’s law

•Astro Lab explained (or not, as it may be)

Read:  33.5-7

Check #7:  Astro: 15-17

 

11

Apr 15/16

•Quiz on chapter 33 – and the test explained

•Work on Astro Lab

Check #8: 33: 24(1.2x108 ly), 25, 26(0.8c)

12

Apr  17/18

•The standard model (The Big Bang)

•The precepts

•The cosmological principle

•The cosmic microwave background

•Inflation and the future of the universe

Check #9: 33: 28(656nm, 661 nm, 2.17x10-6m)

13

Apr 21/22

•The shape of the Universe

•Where's the missing matter?
IB Final Review – Turn in Paper 3 graded with the mark scheme

Talk about paper 3/Final review

14

Apr 25/24*

Apr 23rd is ACT Day

•Work on Astro Lab

• Review for test

 

15

Apr 29/28
Test on Astrophysics

Turn in: PS 33 – 9 stamps worth

Turn in: Astro Lab

Apr 30/ May 1
IB Review

 

 

 

One Prequiz/Skill Set:

  • 26.1 – Special Relativity – length contraction, etc

One regular Quiz:

  • 33 – Astrophysics – Hubble’s Law and stuff

One Lab (possibly):

  • Astro Lab – Expansion of a mini linear universe

Homework:

  • PS 33– 9 day’s worth!

Handouts:

  • This Syllabus
  • PreQuiz 26.1 – Special Relativity

Note Guides:

  • Structure of the Universe
  • Units of Distance
  • Brightness and Distance
  • Stellar Evolution
  • Distance Ladder
  • General Relativity
  • Expanding Space
  • The Big Bang