Newton's Third Law Topic

Two volunteers pull on connected force meters (dairy scales) while seated on rolling platforms. The scales always read equal forces regardless of who pulls harder or who is heavier, directly …

Demonstrates Newton's Third Law and the distinction between internal and external forces. Without the sail, the fan pushes air backward and the cart accelerates forward. With the sail attached, all …

A heavy pendulum suspended on a wheeled cart demonstrates Newton's Third Law: push the cart and the pendulum swings opposite, or swing the pendulum and the cart rolls opposite. Makes …

Demonstrates Newton's Third Law and momentum conservation through recoil. Kneeling on a rolling cart, throw medicine balls horizontally — the cart rolls backward. Throwing two balls approximately doubles the distance; …

Stepping off a low-friction wheeled platform demonstrates Newton's Third Law: the board recoils backward as the demonstrator steps forward. Also illustrates conservation of momentum — the board's higher recoil speed …