'Balanced forces act' diaporamas de présentation

Motion and Forces

Motion and Forces. Displacement in Time and Space. Focus Questions. All animations: www.exrx.net. What is motion? How can you tell if an object is speeding up or slowing down?. Motion Vocabulary. Balanced Forces Unbalanced Forces Inertia Gravity Friction Force Mass Magnitude v=d/t.

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Lesson 3-1

What is force?. A force is a push or a pull on an object. Force has both size and direction. You can use arrows to show the size and direction of a force. The unit for force is the newton (N). Lesson 3-1. What is force? (cont.).

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Objective

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Newton's Laws

What is the first law? An object at rest tends to stay at rest and an object in motion tends to stay in motion with the same speed and in the same direction unless acted upon by an unbalanced force. Newton's Laws. The natural tendency of objects to resist changes in their state of motion.

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