Physics Demonstrations in Mechanics is a two-part video program which presents a full range of physical demonstrations in the area of mechanics. The program was developed in an effort to give physics teachers a collection of video demonstrations to supplement their live classroom demonstrations. The program was designed to meet the needs of high school physics classes as well as introductory level college physics classes.

Program Format
Individual demonstrations are 3 to 4 minutes in length and can be quickly accessed using the program's on-screen indexing system. The indexing system allows the teacher to select a particular demonstration and show it at the appropriate time during a unit on mechanics. The accompanying teacher’s guide gives additional data, information, and suggestions on using the demonstrations to promote further classroom discussion.

Demonstration Selection and Filming Techniques
The selection of demonstrations includes those which are difficult to perform in the classroom and those which require apparatus which is not accessible to many physics teachers. Detailed observation for many of the demonstrations is accomplished through use of the following photographic techniques: Stroboscopic photography, slow motion/stop action photography, full screen and over screen graphics, and close-ups of experimental apparatus.

Single DVD: $78.00
Complete Two-Part Set: $140.00

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• Physics Demonstrations in Mechanics: Parts 3-6

• Physics Demonstrations in Heat

• Physics Demonstrations in Sound & Waves

• Physics Demonstrations in Light

• Physics Demonstrations in Electricity & Magnetism

• Physics of Spaceflight

• Hidden by Time

Physics Demonstrations in
Mechanics: Part I

• Uniform and Accelerated Motion:
  Position-Time Observations
  (Stroboscopic Photography)

• Gravitational Acceleration:
  Determination of g
  (Stroboscopic Photography)

• Projectile Motion:
  Simultaneous Fall
  (Stroboscopic Photography)

• Projectile Motion:
  Monkey and Hunter

• Projectile Motion:
  Trajectory of a Projectile
  (Stroboscopic Photography)

• Circular Motion:
  Direction of Centripetal Force

• Circular Motion:
  Centrifugal Effects on Rotating Sphere

• Circular Motion:
  Motion in a Vertical Plane

• Conservation of Energy:
  Minimum Critical Velocity on a Vertical Loop

• Work and Conservation of Energy:
  Energy Transformations on a Double Incline

Length: 35 Minutes
DVD: $78.00
(Teacher’s Guide Included)

Physics Demonstrations in
Mechanics: Part II

• Newton’s 1st Law:
  Rest Inertia of Massive Ball

• Newton’s 2nd Law:
  Effects of a Varied Net Force on a Body’s Motion

• Newton’s 3rd Law:
  Reaction Cart/Projected Ball Bearings

• Terminal Velocity:
  Air Resistance Acting on a Free-Falling Body
  (Stroboscopic Photography)

• Motion of Center of Mass:
  System with Internally Moving Components

• Motion of Center of Mass:
  Projected Boomerang & Tennis Racket
  (Stroboscopic Photography)

• Conservation of Momentum:
  Determination of a Bullet’s Velocity

• Conservation of Momentum:
  Internal Explosion

• Conservation of Angular Momentum:
  System of Rotating Spheres

• Free-Fall Paradox:
  Falling Chimney

• Center of Percussion:
  Impulsive Forces Delivered to a Baseball Bat

Length: 35 Minutes
DVD: $78.00
(Teacher’s Guide Included)

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