Challenging experiments with levers, wheel and axle mechanisms, pulleys and an inclined plane, help to teach students the principles behind motion and leverage. Kit includes a teacher's guide with 19 activities.

Discover the secret to the wheel's motion with the Koontz Boomerang Wheel kit! Did you know that the wheel conserves energy by converting potential energy into motion? 15 pieces. Assembled size is 3.5" x 5.1".

Build your own Dynamometer and measure the force exerted by the Earth's gravity on objects around you. Calibrate your Dynamometer and explore how it works. Each Dynamometer has 5 pieces and 1 rubber band. Includes materials to make 24 sets and teacher instruction sheet complete with scientific facts and activities

Demonstrates many phenomena of physics. Place the pointed end against the plastic insert and gently twirl. Colors may vary. 5.5" x 3.5" x 2.5", 0.5 lb.

Pulleys are used to demonstrate how to mechanically change the direction of force being applied to force. They can be used individually or in group applications to aid in doing work.

Pulleys are used to demonstrate how to mechanically change the direction of force being applied to force. They can be used individually or in group applications to aid in doing work.

Conduct the classic free-fall experiment with your class! A great improvement over classic free fall equipment, our Digital Photo gate Free Fall Apparatus retains the precision of older models while eliminating the hassle of setting up and adjusting heavy equipment. The apparatus consists of a lightweight extruded vertical column that carries a release electromagnet, two adjustable photogates, and a catching bag. The falling body is a 1.8cm steel ball. We recommend using it in conjunction with our Digital Timer 7-2009, which has several operating modes that allow different series of up to ten measurements to be made. These include: the time of fall from rest to the first photogate, the time of fall between the two photogates, and the time to pass through each photo gate. After conclusion of a series, the measured times are displayed successively. The data allows a precise determination of gravitational acceleration. 49" x 5" x 5"; 6.5 lb.

Great for teaching about mechanics and conservation of energy, the plastic stepped pulley is fitted with a ball bearing on a single steel rod. It uses any standard right angle clamp to attach to a support stand. 6" x 4-1/4" 4-1/2" .33Ib

The mass hanger is nickel plated and designed for use with slotted weights.

What better way to study the momentum changes of varying mass than with a visual measure of its force? The impact car is equipped with a spring scale and slide that is displaced upon impact with a wall or similar obstacle. The slide remains in its displaced position until reset. The student rolls the car down a ramp and measures the impact. As additional mass is added to the recessed cavity inside the car, the experiment is repeated. The student can take direct readings from the scale to measure the increasing force. Instructions are provided. 7" x 3" x 2"; .375 lb.

Made from anodized metal, richly plated, high impact polystyrene body with zero adjustment. Scale is in grams.

Studying waves in physics class can sometimes be difficult for students to conceptualize. This 3" diameter flat spring steel apparatus can make visualizing wave propagation much easier. The plated spring can be stretched across the room allowing the entire class to witness the wave traveling back and forth. 2.5" x 2.5" x 2.75"; 1 lbs.

This apparatus consists of a metal box (22 x 10 x 11cm) with clear acrylic front panel, two glass chimneys, a candle, and a cotton filled wick as the smoke source. Includes activity guide.

Machined aluminum cylinder floats in cold water, but sinks in warm water. Includes activity guide. Measures 0.65" diameter x 3.5" long. Weight is 0.5 oz.

Gyroscope, with Cradles