Nature of Motion

Spark Timer

Designed to determine the rate of acceleration of a falling weight, calculate the speed of a moving cart, or study the forces of friction. Paper tape is pulled through the timer while a spark at a ... More.

Coriolis Effect/Foucault Pendulum Unit

Live action in the classroom clarifies two hard-to-teach concepts. Unit fits any overhead projector.
CORIOLIS EFFECT. A rotating polar map on heavy-gauge Lucite® represents the earth. The p... More.

Collision in One Dimension Apparatus

An all-metal track with plastic supports, 76 cm long with five steel balls 19 mm in diameter. 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.

Power of Science® Matter and Energy - Grades K-8

A firm foundation in basic physics will support any child’s science understanding. Explore mass, density, buoyancy, states of matter, balance, inertia, force, Newton’s Laws, kinetic and... More.

Newtonian Demonstrator

Demonstrates Newton’s Third Law of Motion and the principles of conservation of momentum. This law states that action and reaction are equal and opposite. The unit consists of a walnut suppor... More.

Collision in Two Dimensions

This inexpensive apparatus provides data for investigating conservation of momentum and kinetic energy in collisions. It can also be used to compare elastic and inelastic collisions. A curved alumi... More.

Centripetal Force Apparatus

Allows students to determine the quantitative relationship between centripetal force and mass in rotational motion. The apparatus utilizes one to 20 washers hanging from one end of a nylon thread t... More.

Fan Cart

This self-propelled cart is used to demonstrate acceleration independent of gravity. An air stream generated by a motor-driven propeller provides sufficient thrust to accelerate the cart along a sm... More.