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Published byDina Clarke Modified over 8 years ago
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Warm Up 8/31 Why do we need to document experiments? List Newton’s 3 Laws of Motion.
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Warm Up 9/1 Define Speed Define Momentum Define Force Define Weight
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Forces STANDARD 8.P.2A.2 DEVELOP AND USE MODELS TO COMPARE AND PREDICT THE RESULTING EFFECT OF BALANCED AND UNBALANCED FORCES ON AN OBJECT’S MOTION IN TERMS OF MAGNITUDE AND DIRECTION
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Forces are vectors (Magnitude and Direction) Arrows Length describing how much force Arrow Point to show Direction Using Arrows The resulting force (Net Force) and direction can be determined 2 types of forces Balanced Forces Unbalanced Forces
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Balanced Forces Acting on an object in opposite directions and Equal in strength Cause no change in speed of an object ZERO MOVEMENT 10 N10N
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Unbalanced Forces Not Equal Will cause motion of an object to change speed and direction 2 Unbalanced Forces are exerted in opposite directions, Combined force is equal to the difference of the 2 forces subtract Magnitude and Direction of the net force affects the resulting motion
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Combined force is exerted in the direction of the larger force Unbalanced Forces are exerted in the same direction, Combined force is equal to the sum of the 2 forces Add the 2 forces
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Balanced and Unbalanced Forces No Net Force, No change of motion Net Force is equal on both sides, No Movement Net Force is Unbalanced, Object will move in the direction the greater force is going
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Warm Up 9/2 Define Unbalanced Force Define Balanced Force
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RAFT: Forces USE DESCRIPTIVE LANGUAGE Role: Civil Engineer (Building a skyscraper or highway) Audience: 8 th Grade Science Class Format: Letter Topic: How do Civil Engineers use forces to build Illustrate a Balanced Force and Unbalanced Force
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