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Newton’s First Law

Newton’s First Law. By: Cheyanne , HannaH , Alex, MaryAnn, Katrina, and Nik. Aristotle on Motion. Aristotle came up with two ideas of motion, natural motion and violent motion. He thought natural motion was any type of motion that was straight up or straight down.

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Newton’s First Law

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  1. Newton’s First Law By: Cheyanne, HannaH, Alex, MaryAnn, Katrina, and Nik.

  2. Aristotle on Motion • Aristotle came up with two ideas of motion, natural motion and violent motion. • He thought natural motion was any type of motion that was straight up or straight down. • Ex: A boulder falling from a cliff. • Violent motion was any motion that needed a force. • Ex: A cart being pulled by a horse

  3. Galileo and Copernicus • Copernicus was the first scientist to state that the earth traveled around the sun. • Galileo was the first scientist to show that Copernicus’ idea was logical, by proving this he found that a force was needed to keep an object moving, due to friction. • Galileo stated that if friction were completely absent there would be no force needed for movement.

  4. Law of Inertia • This law is a restatement of Galileo’s idea. • The law states that a body at rest stays at rest, while a body in motion stays in motion. • An example of this law would be a stapler sitting on a desk. The stapler stays at rest until a force is put upon it, such as a teacher pushing it off to the side.

  5. Vocabulary • Inertia: The resistance of any material object to change in its state of motion. • Force: Any push or pull • Friction: the force that acts to resist the relative motion of objects or materials that are in contact • Mass: the amount of material present in an object • Kilograms: the measurement of mass • Weight: the force due to gravity upon a body

  6. Citations • Hewitt, P. (n.d.). Newton's First law of Motion. In Conceptual Physics- A High School Physics Program (pp. 25-36).

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