DEVIL PHYSICS THE BADDEST CLASS ON CAMPUS

IB PHYSICS

ASTROPHYSICS TSOKOS OPTION E-1 INTRODUCTION TO THE UNIVERSE

IB Assessment Statements

E.1.1. Outline the general structure of the solar system.

E.1.2. Distinguish between a stellar cluster and a constellation.

E.1.3. Define the light year.

E.1.4. Compare the relative distances between stars within a galaxy and between galaxies, in terms of order of magnitude.

IB Assessment Statements

E.1.5. Describe the apparent motion of the stars/constellations over a period of a night and over a period of a year, and explain these observations in terms of the rotation and revolution of the Earth.

Tsokos Objectives

Describe the main features of the solar system.

Name the main objects making up the universe.

Give the definition of a light year.

State the average distances between stars and between galaxies.

Outline the main facts about the motion of stars as they appear to an observer on earth.

Order of Magnitude

Relative Size of Celestial Bodies

Laws of Gravitation and Planetary Motion

The Solar System

OBJECTIVE: Describe the main features of the solar system

The Solar System

The Solar System

Relative Orbit Radii

Relative Orbit Radii

Relative Orbits

Kepler’s Laws

Tsokos 2-11

1. The motion of an object that is attracted and bound to a heavier mass is, according to the law of gravitation, an ellipse or circle.

2. Planets sweep out equal areas in equal times.

3. The period of a planet around the sun is proportional to the 3/2 power of the orbit radius.

Moons

Moons

Saturn

Pluto

Asteroid Belt

Characteristics of Planets

Characteristics of Planets

Characteristics of Planets

Objective

Name the main objects making up the universe

Beyond the Solar System

Beyond the Solar System

Objective

Give the definition of a light year

Light Year

The distance light will travel in one year

mxly

xxxxxly

15

8

1046.91

6060243651031

Objective

State the average distances between stars and between galaxies

Parsec (pc)

Represents the average distance between stars in a galaxy

mxlypc 161009.326.31

Objective

Outline the main facts about the motion of stars as they appear to an observer on earth

Motion of the Stars

Motion of the Stars

Motion of the Stars

Motion of the Stars

Tsokos Objectives

Describe the main features of the solar system.

Name the main objects making up the universe.

Give the definition of a light year.

State the average distances between stars and between galaxies.

Outline the main facts about the motion of stars as they appear to an observer on earth.

IB Assessment Statements

E.1.1. Outline the general structure of the solar system.

E.1.2. Distinguish between a stellar cluster and a constellation.

E.1.3. Define the light year.

E.1.4. Compare the relative distances between stars within a galaxy and between galaxies, in terms of order of magnitude.

IB Assessment Statements

E.1.5. Describe the apparent motion of the stars/constellations over a period of a night and over a period of a year, and explain these observations in terms of the rotation and revolution of the Earth.

QUESTIONS?

#1-17

Homework