Why is this so? This question is the source of much confusion (as well as a variety of misconceptions). Further, the acceleration of each object is represented by a vector arrow.Many people are surprised by the fact that in the absence of air resistance, the elephant and the feather strike the ground at the same time. The motion of the elephant and the feather in the absence of air resistance is shown. Which object - the elephant or the feather - will hit the ground first? The animation at the right accurately depicts this situation. Suppose also that air resistance could somehow be eliminated such that neither the elephant nor the feather would experience any air drag during the course of their fall. Suppose that an elephant and a feather are dropped off a very tall building from the same height at the same time. Which has the greater mass the elephant or the feather? Gravity (g): the FORCE of attraction by which bodies tend to fall toward thecenterĭefinitionsElephant vs. (A medium size Phillips screwdriver is required but not included).Catapult Physics&Lab ActivityForce (F): strength or power applied upon an object.ĭefinitionsMass (m): the quantity of matter (atoms/particles) in the object
Kit includes catapult base, catapult left and right sides (symmetric except for counter-sinks), catapult lever arm, 8 rubber bands, 4 wood screws, 3 dowels, 1 c-shaped screw hook, 1 ping pong ball, cardboard storage box and instructions for assembly and experimental activities. Kit designed for exploration under the supervision and guidance of a scientifically-minded adult. Students can experiment with different arrangements until they find the optimal configuration! Educational topics covered in the kit include force, acceleration, center-of-mass, vector components, Hooke’s law, parabolic trajectories, and class 2 levers. This kit is designed to be easy to build and fun to use, allowing students to literally play with the physics of catapults! Shoot ping pong balls over 20 feet and explore 12 different catapult geometries. This model is closest in design to the Onsager catapult which was used by Romans to launch combustible projectiles at their targets. Each kit engages learners to discover new ideas about the physical world through assembly and play.Ĭatapults were one of the most influential elements of siege warfare over the last 2500 years. The Eisco Garage Physics line is aimed at students interested in STEM concepts included physics and engineering. Correlates well with NGSS standards 3-PS2-1&2, MS-PS2-2, and HS-PS2-1, Motion and Stability: Forces and Interactions Each kit engages learners to discover new ideas about the physical world through assembly and play. ENGAGING & FUN || An excellent activity for classrooms and at home.(A medium size Phillips screwdriver is required but not included) WHAT'S IN THE BOX? || Kit includes catapult base, catapult left and right sides (symmetric except for counter-sinks), catapult lever arm, 8 rubber bands, 4 wood screws, 3 dowels, 1 c-shaped screw hook, 1 ping pong ball, cardboard storage box and instructions for assembly and experimental activities.Allows learners of all ages to explore and visualize physics concepts, including force, acceleration, center of mass, vector components, Hooke’s law, parabolic trajectories, and class 2 levers STEM LEARNING || Introduces and demonstrates real world STEM concepts.Students can experiment with different arrangements until they find the optimal configuration! Kit designed for exploration under the supervision and guidance of a scientifically-minded adult
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