Spring 2010 Astronomy 110 MWF 9:30 &mdash 10:20

3. CLASSICAL AND QUANTUM WORLDS

Newton consolidated a wide range of observations and empirical rules into a few simple and straightforward laws of motion. For several centuries thereafter, astronomers and physicists were kept busy working out the consequences of these laws. But roughly one hundred years ago, physicists discovered the world was not as straightforward as they'd believed.


Reading

4.1 Describing Motion: Examples from Daily Life
• How do we describe motion?
• How is mass different from weight?
4.2 Newton's Laws of Motion
• How did Newton change our view of the universe?
• What are Newton's three laws of motion?
4.3 Conservation Laws in Astronomy
• What keeps a planet rotating and orbiting the Sun?
• Where do objects get their energy?
4.4 The Force of Gravity
• What determines the strength of gravity?
• How does Newton's law of gravity extend Kepler's laws?
• How do gravity and energy allow us to understand orbits?
• How does gravity cause tides?
5.1 Basic Properties of Light and Matter
• What is light?
• What is matter?
• How do light and matter interact?
5.2 Basic Learning from Light
• What are the three basic types of spectra?
• How does light tell us what things are made of?
• How does light tell us the temperatures of planets and stars?
• How does light tell us the speed of a distant object?

Online

  1. Complete the Classical and Quantum Worlds assignment, due on Monday, 1 Feb 2010 at 9:00 am.

  2. Review the lecture slides.

Joshua E. Barnes      (barnes at ifa.hawaii.edu)
Updated: 29 January 2010
http://www.ifa.hawaii.edu/~barnes/ast110_10/worlds.html
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