Nature of Motion

Happy/Sad Ball Kit

Two rubber balls that look, feel, and squeeze the same - but try bouncing them! These intriguing inelastic and elastic collision balls are popularly called “happy and sad.” One ball reb... More.

Digital Timer & Photogate

This solid-state apparatus is a must for any physics class. Two photogates are included, each with its own shielded connecting cord and mounting screws. The timer has functions for timing me... More.

Dynamics Cars

Set of two dynamics cars constructed of heavy-gauge aluminum with ball bearing wheels to withstand the most severe classroom use. Each car will hold several bricks or support a load of over 90.0 kg... More.

Second Law of Motion Apparatus

Designed to propel one ball horizontally while at the same instant releasing another to fall vertically. The spring can be cocked at two different tensions. The metal platform is 15 cm long and has... More.

Student Force Table

A student force table featuring a dual scale that allows students to take readings either clockwise or counterclockwise. Four complete weight sets, four pulleys with clamps, and two sets of strings... More.

Physical Science Action Labs Book

Labs range from determining the characteristics of matter, experimenting with elastic matter, overcoming friction, discovering the laws of motion, making a pendulum, and having fun with falling. Ma... More.

Linear Expansion Apparatus

This linear expansion testing device makes studying the expansion of metals simple and instantly visible to the student. A metal rod is inserted into the steam chamber and steam is applied. Expansi... More.

Foucault’s Pendulum Apparatus

A precise demonstration of the earth’s rotation that is electrically maintained - needs no attention. An ideal display for science classrooms. This apparatus is a carefully constructed miniat... More.

Inertia Demonstrator

Perform a classic experiment and always get results with this rugged and reliable inertia demonstrator. A 22 mm diameter steel ball rests on a thin metal card on top of a pillar. A spring-loaded ca... More.

Greek Waiter’s Tray

The waiters in Greek cafes are famous for their dexterity as they swing heavily loaded trays between tables with nary a spill. This study device illustrates the principle in a way that will amaze y... More.