Demonstrations in Physics

Episodes

Unit 1 - Mechanics

• Episode 1. The Idea of the Center of Gravity
• Episode 2. Newton's First Law of Motion
• Episode 3. Newton's Second Law of Motion
• Episode 4. Newton's Third Law of Motion
• Episode 5. Energy and Momentum
• Episode 6. Concerning Falling Bodies and Projectiles
• Episode 7. The Simple Pendulum, Oscillating Things
• Episode 8. Adventures with Bernoulli
• Episode 9. Soap Bubbles and Soap Films
• Episode 10. Atmospheric Pressure - Properties of Gases
• Episode 11. Centrifugal Force and Other Strange Matters
• Episode 12. The Strange Behavior of Rolling Things
• Episode 13. Archimedes' Principle
• Episode 14. Pascal's Principle - The Properties of Liquids
• Episode 15. Levers, Inclined Planes, Geared Wheels and Other Machines

  Unit 2, Part I - Heat and Temperature

• Episode 16. The Ideas of Heat and Temperature
• Episode 17. Thermometric Properties and Processes
• Episode 18. How to Produce Heat Energy
• Episode 19. Thermal Expansion of Stuff - Solids
• Episode 20. Thermal Expansion of Stuff - Gases, Liquids
• Episode 21. The Strange Thermal Behavior of Ice, Water
• Episode 22. Heat Energy Transfer by Conduction
• Episode 23. Heat Energy Transfer by Convection
• Episode 24. Heat Energy Transfer by Radiation
• Episode 25. Some Extraordinary Adventures
• Episode 26. Some Miscellaneous and Wondrous Adventures in the Subject of Heat
• Episode 27. Extraordinarily Cold Stuff

  Unit 2, Part II - The Physics of Toys

• Episode 28. The Physics of Toys: Mechanical
• Episode 29. The Physics of Toys: Acoustic and Thermal
• Episode 30. The Physics of Toys: Electrostatic, Magnetic and Miscellaneous

  Unit 3, Part I - Waves and Sound

• Episode 31. Waves: Kinds and Properties
• Episode 32. Sound Waves - Sources of Sound
• *Frequency, pitch, how they relate to each other and correspond to musical notes.
• *Vibrating systems cause sound, sound requires a medium to travel.
• *Flexing different metal plates to produce different pitches.
• *Rotating plate with drilled holes and air blown through them – difference in sound between symmetrically drilled ones and asymmetrically drilled ones.
• *Vibrating a meter stick at different frequencies when different lengths stick out past a table.
• *Varying frequencies rubbing a thumbnail across the milled edge of a coin, when tearing various pieces of cloth, using different files on wood, or riffling a deck of cards.
• *Human hearing range
• *Nodes in vibrating bars and tuning forks.
• *Notched stick with a spinning propeller.
• *Turing an orchestra – why they don’t use a piano.
• Episode 33. Vibrating Bars and Strings
• *Bar mounted on a resonating chamber, mounted at 2 important places.
• *Second, "identical" bar, beats between two bars that are 1 Hz out of tune.
• *Beats between two tuning forks, one with rubber bands around the end of a prong to reduce its frequency.
• *Vibrations of a metal bar, shown on screen with a long pipe.
• *If a vibrating bar is grasped at the nodes it will keep vibrating, anywhere else it will stop.
• *Nodes on a vibrating bar are 0.224 of the bar length from each end.
• *Tuning forks on resonant boxes – transferring vibration from one to another.
• *Musical sticks.
• *Forming standing waves on a string, changing the number of nodes and antinodes at constant frequency and length by changing the tension.
• *Transferring vibrations from one vibrating bar to another through resonance.
• Episode 34. Resonance - Forced Vibrations
• Episode 35. Sounding Pipes
• Episode 36. Vibrating Rods and Plates
• Episode 37. Miscellaneous Adventures in Sound

  Unit 3, Part II - Electricity and Magnetism

• Episode 38. Electrostatic Phenomena
• Episode 39. Adventures with Electric Charges
• Episode 40. Adventures in Magnetism
• Episode 41. Ways to "Produce" Electricity
• Episode 42. Properties and Effects of Electric Currents
• Episode 43. Adventures in Electromagnetism
• Episode 44. Further Adventures in Electromagnetism
• Episode 45. Miscellaneous and Wondrous Things in Electricity & Magnetism