Spring Scales are used to weigh loads and are used in physical science experiments as a basic accelerator. Spring Scales use Hooke’s law to determine the size of the force stretching the spring by measuring the displacement. The spring scale has a clear body that is graduated, a mounting ring…

Lenses - Glass with ground edges - Double Concave

Spring Scales are used to weigh loads and are used in physical science experiments as a basic accelerator. Spring Scales use Hooke’s law to determine the size of the force stretching the spring by measuring the displacement. The spring scale has a clear body that is graduated, a mounting ring…

Our Cross Slit with Arrowheads accessory gives you a cross-shaped hole to cast light through on your optical bench during light experiments. This accessory is designed to work with our Basic and Deluxe Optical Benches (#OPTBN-BSC and #OPTBN-DLX). PRODUCT WARNINGS WARNING: This…

Ammeters are used to measure the current flowing through a circuit. Current is measured in amperes, which is denoted by A on our meters. Our meters are accurate to +/- 2.5% and have banana jack style binding posts. This AC/DC ammeter can measure a range of 0A to 3A.

The Ballistics Car demonstrates that the horizontal motion of an object is unaffected by forces which act solely in the vertical direction. The car's low-friction wheel bearings allow it to coast at an essentially constant speed. If the spring in the gun is triggered while the car is coasting, the…

A Tuning Fork Mallet is used to strike a tuning fork to produce a sound. This mallet has a rubber bulb top and a 6 inchplastic handle.

Galvanometers measure very small amounts of current or voltage in a circuit. Our meters are accurate to +/- 2.5% and have banana jack style binding posts.

An optical bench allows you to perform and observe the fundamentals of optics such as image formation, reflection, refraction, and more. The bench consists of a painted, square aluminum bar, two molded supports with leveling screws, and graduations from 0cm to 100cm, subdivided in millimeters. Feel…

Use this wind tunnel to investigate lift, Bernoulli's Principle, and aerodynamics. Simply connect the tunnel to a power source (not included), turn the fan on, and place a source of smoke (not included) in front of the fan. You will be able to watch the smoke move at different rates on either side…

Demonstrate storage of electrical charges! This unit is effective in helping students understand the function of a dielectric and the buildup of static electricity. The inner and outer metal conductors are separated by a plastic insulator cup. These pieces slide easily in and out of one another.…

Our resonance tubes are made from borosilicate glass. These resonance tubes are non-graduated. Use them to build your own resonating column demonstration or velocity-of-sound-in-air demonstration. We also sell graduated resonating tubes . PRODUCT WARNINGS Our products are not toys .…

Connector cords are useful in various electricity experiments, as well as in many apparatuses that require connections to power supplies. All of our connector cords are made of 18-gauge insulated wire. These connector cords have alligator-clips on each end. Alligator-clip ends are useful for useful…

Our ebonite friction rod can be used to experiment with and to observe friction. PRODUCT WARNINGS Our products are not toys . Use in a laboratory or educational setting only. Not for children 13 and under.

Borosilicate glass with permanently fused and accurate graduations

Demonstrate the relationship between length of the lever arm, moment of force, and amount of force. The unit is designed to help students to understand the principles of torque and its properties. The Kit includes: a 50cm meter stick, a cast iron support stand, 3-knife edge clamps, 1-50 gram hooked…

The connector cord set have Cross-Patch/Stacking Banana Plugs which allows you to connect to another Banana Plug on both the side or back of the first plug. The cords are plastic coated and flexible. The set includes 6 cords; 3 black and 3 red.

The Mini Projectile Launcher is for students of force and motion in any Physical Science Classroom. The apparatus is useful in studying projectile range versus angle and conservation of momentum and energy. The launcher will project steel balls at a range of 1 to 2 meters and can be set at…

This set of two magnetic pucks will repel each other in a collision on an air table. Air table not included. PRODUCT WARNINGS WARNING: This product can expose you to chemicals including styrene and lead, which are known to the State of California to cause cancer, birth defects, or…

Helmholtz coils are useful for creating near-uniform magnetic fields or for cancelling out external magnetic fields, such as the earth’s. The field between the two solenoids is at its most uniform when the distance between them is equal to the radius of the solenoids. This can also be used with a…

Our plastic-coated magnet ring set features six different colored magnets. Each ring is approximately 30mm in diameter, with an approximately 10mm hole in the center. PRODUCT WARNINGS WARNING: This product can expose you to chemicals including styrene, which are known to the State of…

The Dual Light Source Optical Bench - 12V Laser and Halogen is used to study the behavior of light, and to also study the phenomena related to physical processes common to image formation. The bench is a 1m long aluminum track, graduated in millimeters. In the center of the track is the 0mm point,…

A glass cup with a U-tube attached. When water reaches the top of the inverted U-tube, a siphon action begins which drains the water until the end of the U-tube is exposed. When the cup is filled with water, the water is forced up the inverted U-tube so that equilibrium is maintained in the cup. As…

A Wheatstone Bridge is a tool that can be used to determine an unknown electrical resistance within a circuit by comparing known resistances to the unknown resistance value. PRODUCT WARNINGS WARNING: This product can expose you to chemicals including styrene, nickel, and lead, which…

A syringe is used as an airtight piston that is mounted on a wood base and platform. Mechanical pressure in the form of weight, is placed on the platform, which changes the volume gas. You then plot the volume of gas versus the pressure to obtain a good approximation of Boyle's Law. The unit…

Use this kit to explore a multitude of mechanical interations including Archimedes' Principle, Hooke's Law, the Law of Parallelograms, movement on an inclined plane, and more. Instructions included. Kit includes: 1 Weight box 1 Single-Scale with clip 2 S-shaped hooks 1 Wooden…

Happy and Sad Balls are used to show the relationship between elastic and inelastic collisions. While both balls share an identical makeup between mass, density, and appearance, one will bounce, while the other will not. They are sold as a pair. The Happy Ball consists of standard neoprene that…

A U-shaped electromagnet having two removable excitation coils, armature with hook, and terminals mounted at the top of each coil. Overall length approximately 13cm. Instructions included.

The Inertial Balance allows for the measurement of inertial mass. Adding mass to one end increases its inertia and causes it to oscillate at a slower rate. This apparatus allows for the investigation of masses by comparing the oscillation period of a known mass to the oscillation period of an…

Spring Scales are used to weigh loads and are used in physical science experiments as a basic accelerator. Spring Scales use Hooke’s law to determine the size of the force stretching the spring by measuring the displacement. The spring scale has a clear body that is graduated, a mounting ring…

These pulleys are generally used as demonstrations in education, but they can also be used as a tool for relatively light items. 24A00B361 This is a cast metal pulley, 50mm diameter with a single groove.  The pulley has a hook at the top and bottom of the…