Force & Motion-> Force Demonstrators

[1]   Click to Enlarge Forced Oscillation Demonstrator This device demonstrates oscillations under repeated external forces, resonance, and damped oscillation. Consists of two springs connected by a metal cylinder, a hand crank, and a support with scale. Size 28x8x9", 5.6lbs See Enlarge Click to Enlarge Force Equilibrium Demonstrator (1885) This kit is a convenience tool for high school and college physics teachers in their teaching of forces and vectors. It includes a vertical force table on a stand to demonstrate the conditions for concurrent forces to be in equilibrium, a movable parallelogram to simulate the addition of forces, and a triangular support to show the type of force in each member of the support. Comes with 2 weight sets, a spring scale See Enlarge Click to Enlarge Force Table, Student (1887) This table offers a superior quality compared to most student units sold in this price range. A steel tube, cast legs and laminated table top make this unit very stable and highly functional for the study of equilibrium of forces. Comes with four all aluminum precision pulleys and two force rings with cords. weights are also included. See Enlarge Click to Enlarge Greek Waiter's Tray (LSE) The waiters in Greek cafes are famous for their dexterity as they swing heavily loaded trays between tables with nary a spill. This sturdy device illustrates the principle in a way that will amaze your class. Place a clear container of colored water on the platform of the tray and start swinging from side to side. With practice, you should be able to swing in wide circles and even upside down. The container stays put because the net force acting on it is always directed radially, toward the center. This pins the container to the tray along with its contents. Our durable wood tray doubles as a laboratory support stand and can be clamped vertically or horizontally. It includes an attached pendulum and instructions. If you add magnets to the base (not included), you can also use the pendulum to demonstrate chaotic motion. See Enlarge Click to Enlarge Centripetal Force Paradox (LSE) Similar to the rotating candle experiment, this illustrates centripetal force in an way that "goes against the grain". Ask your students what they expect the floats to do when the platform on which they sit is spun. Our two floats serve as buoyant pendulums inside transparent jars filled with water. Since they are buoyant, they move in the same direction as the accelerating force - which is toward the axis of rotation, or toward the center. Includes tripod base with rod; two sturdy plastic jars with caps; bobber with cord; instructions. See Enlarge Click to Enlarge Photogate Timer (LSE) Our smart timer is perfect for calculating acceleration. Use for free fall experiments and with your air track. Features include: 4 digit LCD display Electromagnetic release 5.1 VDC 10 value memory Energy saving microprocessors 110 V transformer Battery back-up See Enlarge Click to Enlarge Force Pump (LSE) Demonstrate how a pump works! Our pump uses atmospheric pressure to move liquids. When you raise the piston, you decrease the air pressure below it and cause a partial vacuum. The push of the atmosphere on the water in the lower basin forces some of the water up through the lower valve. When you then lower the piston, output valve opens and the water trapped in the cyllinder is forced through the spout. Color may vary. See Enlarge Click to Enlarge Center of Gravity Paradox (LSE) Things are not always what they seem. Our angular momentum apparatus is weighted at one end. Try to balance the one meter rod with the heavier end down; intuition tells most people this should work. In actuality, the opposite is true - turn the rod over and balance it easily on a mere fingertip. This is a hands-on way to introduce the concepts of the center of gravity, angular acceleration and moment of inertia. Mass is movable. Instructions include theory. See Enlarge Click to Enlarge Constant Speed Vehicle (LSE) Highly useful for towing or pushing dynamics cars to demonstrate vectors and velocity, this power dune buggy rolls along with a uniform speed. Can be used for many experiments in the lab. See Enlarge Click to Enlarge In Line Pulley (LSE) These free-running tandem pulleys have 1, 2, or 3 rigid plastic sheaves and nickel-plated steel frames with hooks on either end. Single has 50 mm sheave; double has 38 and 50 mm sheaves; triple has 25, 38, and 50 mm sheaves. See Enlarge Click to Enlarge Duff's Inclined Plane (LSE) This unusual apparatus, named after Wilmer Duff of Worchester Polytechnic, is a simple method of studying uniformly accelerated motion. It uses the iso- chronous oscillation of a ball rolling back and forth in a cylindrical trough as a time marker. It consists of a stiff plastic trough, bright red in color, 1 m long, elevated at one end to form a very slight incline. The fact that a ball is rolling down the incline, instead of a sliding block, changes the mathematical workup performed in most physics lab today. The path of the ball crosses the midline of the trough at equal times, yielding information about the position of the ball as a function of equal time intervals. Includes: 3/4? steel ball, instructions, curved plastic track, wood support at one end. You need cork dust or chalk powder. Made in USA See Enlarge Click to Enlarge Economy Stopwatch (LSE) Great for student use. Water resistant to 25 m with 0.025 accuracy. See Enlarge Click to Enlarge Force Table, Economy (MS127-1) This unit very stable and highly functional for the study of equilibrium of forces. Comes with four all aluminum precision pulleys and two force rings with cords. weights are also included. See Enlarge [1] Go to Top