Introduction to Physics

Induction and Astronomy

1. The Cause of the Seasons
2. The Phases of the Moon
3. The Daily Path of the Sun
4. The Lunar Eclipse and its Cause
5. The Shape of the Earth
6. The Size of the Earth
7. The Relative Distances of the Moon and Sun from Earth
8. The Size of the Moon and Sun
9. The Absolute Distances to the Moon and Sun from Earth
10. The Apparent Motion of the Sun, Stars, and Planets

The Mechanism of the Heavens

11. The Law of Motion Change
12. The Phases of Venus
13. The Heliocentric Solar System
14. The Sun as Cause of Planetary Motion
15. The Law of Orbital Period and Distance
16. The Jovian Moons' Adherence to the Law of Orbital Period and Distance
17. The Moon as Earth-like World
18. The Amplitude Independence of Pendulum Period

Kinematics

19. The Weight Independence of Pendulum Period
20. The Length Dependence of Pendulum Period
21. The Weight Independence of Freefall Rate
22. The Equation of Freefall
23. The Constant Acceleration of Objects in Freefall
24. The Kinematic Equations
25. The Motion of Projectiles
26. The Launch Angle Dependence of Projectile Range
27. The Vector Nature of Velocity

Force and Gravitation

28. The Acceleration of Circular Motion
29. The Inverse Square Law of Radius in Circular Acceleration
30. The Heavenly Force Cause of Freefall on Earth
31. The Gravitational Attraction of Mass
32. The Measurement of Force
33. The Cause of Acceleration
34. The Equation of Gravitation

Momentum and Rotation

35. The Necessity of Opposing Force Pairs
36. The Conservation of Momentum
37. The Law of Levers
38. The Necessitation of the Law of Levers by Force Laws and the Vector Nature of Force
39. The Conservation of Angular Momentum
40. The Cause of Rotational Acceleration by Torque
41. The Precession of Rotating Objects about their Polar Axis

Electricity and Magnetism

• Electricity is an attractive force between certain items when rubbed