Neither WestEd nor the lead states and partners that developed the Next Generation Science Standards were involved in the production of this product, and do not endorse it. *Next Generation Science Standards® is a registered trademark of WestEd. A Phillips-head screwdriver is needed for assembly but not included. Designed for elementary and middle school but suitable for older students studying mathematics, physics, and physical science. The three primary energy storage mechanisms are tension, torsion, and gravity. The plane is released when it has been displaced 0.50 meter from its equilibrium position by the catapult. Includes enough materials for 1 group of students and an instruction manual with NGSS correlations and assembly instructions. Catapult physics is basically the use of stored energy to hurl a projectile (the payload), without the use of an explosive. 12 A catapult with a spring constant of 1.0 × 104 new-tons per meter is required to launch an airplane from the deck of an aircraft carrier. Gravity accelerates the ball in the negative y direction. ![]() Figure 1 - Catapult Schematic Once the ball is launched, the only forces acting are gravity and air resistance. Supports NGSS (Next Generation Science Standards®) 3-PS2-1 and 2 Motion and Stability: Forces and Interactions, MS-PS2-2 Plan an investigation to provide evidence that the change in an object's motion depends on the sum of the forces on the object and the mass of the object, and HS-PS2-1 Analyze data to support the claim that Newton's second law of motion describes the mathematical relationship among the net force on a macroscopic object, its mass, and its acceleration. Background A catapult is a launching device that allows us to experimentally observe projectile motion (see Figure 1). If you missed out, check out the video here. They learn information related to force, acceleration, center of mass, vectors, Hooke's law, parabolic trajectories, and class 2 levers. A catapult works because energy can be converted from one type to another and transferred from one object to another. Last week, Veritasium released a video demonstrating 5 weird phenomena that have to do with physics. A sling may be used maximize throwing potential, but slingshot devices are not permitted. ![]() Watch out for the catapult! Students shoot ping-pong balls over 20 ft and explore the history, physics, and geometry of catapults. Laboratories at FNWI and around the world detect it on a daily basis: from novel phases of matter in physics, through pattern formation in molecular structures. Catapult must have an arm designed to throw the ball.
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