![]() ![]() ![]() Once they understand these principles move on to making the catapult. Have the students share examples of different kinds of potential energy, kinetic energy and talk about the different kinds of force that may effect it. Stop the ball and discuss how force, kinetic and potential energy are acting together. Show an example of a ball rolling across the table. Popsicle Stick Catapult Lesson Discussionĭiscuss the vocabulary with the students.ĭiscuss the difference between kinetic and potential energy. The children will experiment with this law by exerting force when the want to launch an object. This law simply means that an object cannot stop, start or change its motion on its own. We will be testing this law through this activity. Newtons first law of motion states that a body at rest will remain at rest, and a body in motion will remain in motion unless it is acted upon by an external force. The Engineering Process- preforming a series of steps in order to solve a problem.Fulcrum- the point on which a lever rests or is supported.Force- push or pull on an object that causes it to stop, change directions or start moving.Examples of potential energy: water behind a dam, a child at the top of a slide, water at the top of a waterfall, a raised weight.Potential Energy- Energy that is “stored” because of the position and/or arrangement of the object.Examples of kinetic energy- running, walking, a car driving, a ball rolling down a hill.Kinetic Energy- Energy that an object has from being in motion.Understanding the Science behind Popsicle Stick Catapults Vocabulary: Items to shoot (marshmallows, pompoms, small candy etc.).Double sided tape, sticky dots or something similar.Plastic spoon (you can use this instead of a bottle lid). ![]()
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