IB Physics .:. Go Up

Relativity and Astrophysics

Block

Class

Due on this class

1

## Mar 20

-The Michelson-Morley experiment

-Einstein's Gedanken

-The two postulates of Special Relativity

-Time Dilation

-The Twin Paradox and relative time

-Length Contraction and 4-D space-time

-Mass Dilation and the ultimate speed limit of the Universe

-Simultaneity

Mar 21-29

|: break yay Spring break yay Spring break yay Spring :|

(IB Folks finish as much of the exam and the climate change as possible)

2

### Mar 31

Work on problems: (See Check #1 and #2)

-Mass and energy: Relativistic kinetic energy

-Energy-momentum relationship

-PreQuiz 26.1

Video Flip: Relativistic KE, Velocity addition, Momentum

3

Apr 2

Work on problems: (See Check #1 and #2)

-Time, length, mass

-Energy and energy momentum

-Skill Set 26.1

Turn in: PQ 26.1

4

## Apr 6

-Intro to Astrophysics

-The Structure of the Universe:

-Our solar system/Galaxy

- /Nebulae/Clusters/Groups/Superclusters

-Scale Model of the Solar System

Check #1: Worksheet 26: 7-13, 20, 22-25, 28-31

5

## Apr 8

-Units of distance:

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

Stars: Part One – Distance and Brightness

-WienÕs Law

-Absolute Luminosity

-Apparent Brightness

Check #2: 26: 1, 4(69.1 Ly), 7, 8(0.436c), 13, 14(0.887 c), 26(0.866c), 28(2.23×10-9 J, 6.46 × 10-18 kg m/s), 29, 31, 43, 46(0.65c), 48(0.70c)

6

Apr 13

-Apparent and absolute magnitude

-H-R diagrams

-Stars: Part Two - Stellar Evolution

-Birth/Main sequence

Check #3: Astro: 1-5, 33: 1, 3, 5, 7

7

## Apr 15

-Red giants? Supernova? Pulsar? Neutron Star?

-Black Holes? White Dwarves

-Stellar Evolution Flowchart

Check #4: Astro: 6-10, 33: 34(A: T+, L=, S-, B: T=, L-, S-, C: T-, L+, S+), 35

#### Thurs, 4/16

IB Review of last year stuff

#### Apr 17

-Measuring the AU/Measuring Parsecs

-Using H-R diagrams

-Variable stars: RR Lyrae, Cepheids

-Type I Supernovae/Galaxy brightness

Check #5: Astro: 11-14, 33: 8(1.3E3 W/m2, 3.7E26 W), 9, 11

9

Apr 21

-General relativity

-Principle of equivalence

-Curved space

-Black holes and the Schwarzschild radius

Check #6: 33: 12(2.33E-5 rad), 13, 14(5.4E17 kg/m3, 2.9E8x, 1.3x)

Turn In: Stell Evolution Flowchart

10

Apr 23

-Expanding Space

-Redshift

-HubbleÕs law

-Prequiz  33 – Take Home

Check #7: Astro: 15-17, 33: 18(2.95 km, 8.9 mm), 19

11

Apr 27

-The standard model (The Big Bang)

-The precepts

-The cosmological principle

-The cosmic microwave background

Check #8: Astro: 18-19, 33: 22(140 MLy), 23, 24(0.88c)

(Use the bookÕs version of the Hubble constant)

Apr 28

IB Review!!!

Have completed the IB tests from 2014, and turn in your solutions to the Energy and Climate change chapter

12

Apr 30

-The standard model (The Big Bang)- Part II

-Inflation and the future of the universe

-The shape of the Universe

-Where's the missing matter?

-Hubble Lab – Expanding Universe

Check #9: Astro: 20, 33: 30(1.1E-3m), 44(1.4E16 K, hadron era), 25

13

May 4

Test on Astro and Relativity

(IB folks must take this test before the IB test on May 8th)

(Maybe come in 3B on Wednesday May 6th)

Turn in: Homework – 9 stamps worth

Turn in: Hubble Lab

Turn in: PQ 33

Two Prequizzes

á            26.1 – Special Relativity – length contraction, etc

á            33 – Astrophysics – HubbleÕs Law and stuff

One SkillSet

á            26.1 – Special Relativity

Two Labs (possibly):

á            Stellar Flowchart - interactive online flowchart

á            Hubble Constant Lab – Expansion of a mini linear universe

Homework:

á            6 dayÕs worth!

One Test

á            A normal Murray test – look at the review materials.

Handouts:

á            This Syllabus

á            PreQuiz 26.1 – Special Relativity

á            PreQuiz 33 – HubbleÕs law and stuff

á            Chapter26Problems

á            Lab-HubbleConstant

á            Worksheet-Astrophysics

á            Many NoteGuides