By the conclusion of this chapter, you should be able to:
- Sketch and contrast the geocentric and heliocentric models of the Solar System.
- Summarize the laws developed by Johannes Kepler that describe the motion of objects in the Solar System.
- Describe the evidence that Earth and the other planets orbit the Sun.
- Explain the physical laws discover by Isaac Newton and Galileo Galilei that govern the motion of all objects.
Prepare and Assess
- Kepler's Laws
- Velocity, Acceleration, Inertia
Section: 3.4 and 3.5
- Ptolemaic Orbit of Mars
Shows Ptolemy’s model for the orbit of Mars.
- Ptolemaic Phases of Venus
Shows what Venus would look like through a telescope if Ptolemy’s model was correct.
- Retrograde Motion
Demonstrates the retrograde motion of Mars with an annotated animation.
- Eccentricity Demonstrator
Demonstrates the parameters that define the eccentricity of an ellipse.
- Planetary Configurations Simulator
Models the movements of the planets around the Sun in a simplified Copernican model of the Solar System.
- Planetary Orbit Simulator
Models the motion of a hypothetical planet that orbits the Sun according to Kepler’s laws of motion. This simulator includes controls for investigating each of Kepler’s laws, and Newtonian features.
- Synodic Period Calculator
Calculate the sidereal period of the planet (P) from the synodic period (S), and vice versa.
- Kepler's Third Law
Calculate the period of a planet from its semimajor axis, and vice versa.
Reassess and Apply
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