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Topic: Newton’s Laws of Motion PSSA: 3.4.7.C / S8.C.3.1.

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Presentation on theme: "Topic: Newton’s Laws of Motion PSSA: 3.4.7.C / S8.C.3.1."— Presentation transcript:

1 Topic: Newton’s Laws of Motion PSSA: 3.4.7.C / S8.C.3.1

2 Objective: TLW state and explain Newton’s Three Laws of Motion TLW state and explain Newton’s Three Laws of Motion TLW explain the effects of friction and air resistance on motion. TLW explain the effects of friction and air resistance on motion.

3 MI #1: Newton’s First Law of Motion An object at rest will stay at rest and an object in motion will stay in motion at a constant velocity unless acted upon by an outside, unbalanced force. An object at rest will stay at rest and an object in motion will stay in motion at a constant velocity unless acted upon by an outside, unbalanced force.

4 MI #2: Newton’s First Law of Motion (The Law of Inertia) Newton’s First Law of Motion is also known as the law of inertia. Newton’s First Law of Motion is also known as the law of inertia. Inertia is the tendency of all objects to resist changes in their motion. Inertia is the tendency of all objects to resist changes in their motion. An object’s mass will help determine an object’s inertia. An object’s mass will help determine an object’s inertia.

5 MI #3: Newton’s Second Law of Motion The acceleration of an object depends on the mass of the object and the amount of force applied. The acceleration of an object depends on the mass of the object and the amount of force applied.

6 MI #4: Newton’s Second Law of Motion Newton’s Second Law of Motion is expressed mathematically as Newton’s Second Law of Motion is expressed mathematically as F = m x a (F = force in Newtons, m = mass in kilograms, and a = acceleration in m/s/s)

7 MI #5: Newton’s Third Law of Motion For every action there is an equal and opposite reaction. For every action there is an equal and opposite reaction.

8 MI #6: Newton’s Third Law of Motion Forces act in pairs. Forces act in pairs. When one object exerts a force on another object, the other object exerts an equal force in the opposite direction. When one object exerts a force on another object, the other object exerts an equal force in the opposite direction. The force pairs do not act on the same object. The force pairs do not act on the same object.

9 So What…? Real Life Application Newton’s Laws of Motion are important because they explain how all objects in the universe move. Newton’s Laws of Motion are important because they explain how all objects in the universe move.


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