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AIM: How do we define and solve Newton’s 1 st and 2 nd Law of Motion problems? OBJ: Given notes (and activity sheet) SWBAT define and solve Newton’s 1.

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Presentation on theme: "AIM: How do we define and solve Newton’s 1 st and 2 nd Law of Motion problems? OBJ: Given notes (and activity sheet) SWBAT define and solve Newton’s 1."— Presentation transcript:

1 AIM: How do we define and solve Newton’s 1 st and 2 nd Law of Motion problems? OBJ: Given notes (and activity sheet) SWBAT define and solve Newton’s 1 st and 2 nd Law of Motion problems with 70% accuracy. DN: ACT: Introduction to Newton’s 1 st and 2 nd Law of Motion Complete What is Newton’s First Law of Motion? Activity Sheet. HW: Text, read p. 51-54, Complete Newton’s First and Second Law’s Booklet; NLSME Exam, May 28?

2 Newton’s Laws of Motion Newton’s 1 st Law of Motion Inertia: an object at rest will remain at rest and an object moving at a constant velocity will continue moving at a constant velocity, unless it is acted upon by an unbalanced force. Gravity and friction are unbalanced forces. https://www.youtube.com/watch?v=OHw80HXSuAQ

3 Newton’s Laws of Motion Inertia: is the tendency of an object to resist a change in motion. Example: when a car stops, inertia keeps you moving forward. Factor Affecting Inertia: mass greater mass ~ greater inertia ~ greater force to change motion Newton’s 2 nd Law of Motion: acceleration depends on the object’s mass and the force acting on the object. So: Force (N)= Mass (kg) x Acceleration (m/s 2 ) F=MA and A=F1N = 1kg·m/s M

4 https://www.youtube.com/watch?v=nO7XeYPi2FU

5 Newton’s Laws of Motion Given: Acceleration = Force Mass If mass constant, then (direct relationship): increase acceleration ~ increase force If force constant, then (opposite relationship): increase acceleration ~ decrease mass

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