Skip to main content
Home
UCLA Physics & Astronomy
Instructional Resource Lab

Main menu

  • Lecture Demonstration Manual
  • Lab Manuals
  • Instructional Videos
  • Outreach
  • PhotoSpheres

You are here

Home » Lecture Demonstration Manual » 1. Mechanics » H. Energy

Table of Contents

  • 1. Mechanics
    • A. First Day Demos
    • B. First Law, Inertia
    • C. Second Law
    • D. Third Law
    • E. Angular Momentum
    • F. Ballistics
    • G. Center of Mass Demonstrations
    • H. Energy
      • 10. "Faith in Physics" Pendulum
      • 20. Galilean Pendulum & Track
      • 30. Loop the Loop
      • 40. Measurement of Horsepower
      • 50. Perpetual Motion Top
    • I. Friction
    • J. Gravitational Acceleration
    • K. Kinematics
    • L. Momentum and Collisions
    • M. Nonlinear Mechanics
    • N. Rotational Inertia
    • O. Statics
    • P. Torque
    • Q. Uniform Circular Motion
    • R. Vectors and Forces
    • S. Data Studio
  • 2. Harmonic Motion, Waves and Sound
  • 3. Matter and Thermodynamics
  • 4. Electricity and Magnetism
  • 5. Light and Optics
  • 6. Modern Physics
  • 7. Astronomy
  • 8. Software and Multimedia
  • 9. Index and code conversion from older manual
  • External Resources

50. Perpetual Motion Top

A small top, once set spinning, spins indefinitely. Can we reason that there must be some hidden, external source of energy to overcome the frictional loss of the top?

Loading the player...
‹ 40. Measurement of Horsepower up I. Friction ›
  • Printer-friendly versionPrinter-friendly version