A RACE CAR DRIVER WANTS TO TIE OR BREAK THE RECORD FOR AVERAGE SPEED IN A 500-MILE RACE ON A PARTICULAR TRACK. THE RECORD TIME TO COMPLETE THE RACE IS.

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Presentation transcript:

A RACE CAR DRIVER WANTS TO TIE OR BREAK THE RECORD FOR AVERAGE SPEED IN A 500-MILE RACE ON A PARTICULAR TRACK. THE RECORD TIME TO COMPLETE THE RACE IS 2.7 H. WHAT AVERAGE SPEED MUST THE DRIVER MAINTAIN TO TIE THE RECORD? AABOUT 200 MILES PER HOUR BA LITTLE UNDER 185 MILES PER HOUR CA LITTLE OVER 185 MILES PER HOUR DABOUT 100 MILES PER HOUR BELLWORK

Work Quiz 1.C12.A23.C 2.B13.B 3.D14.C 4.A15.B 5.B16.C 6.C17.A 7.D18.C 8.A19.D 9.C20.B 10. B21.D 11.B22.A

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NEWTON’S 1 ST LAW- AN OBJECT AT REST REMAINS AT REST, AND AN OBJECT IN MOTION REMAINS IN MOTION AT A CONSTANT SPEED AND IN A STRAIGHT LINE UNLESS ACTED ON BY AN UNBALANCED FORCE. Net force = combination of all of the forces acting on an object When net force is 0 N, the forces are balanced. When the net force on an object is not 0 N, the forces on the object are unbalanced. Newton’s first law of motion is sometimes called the law of inertia. Inertia is “want to,” when an object resists change because it “wants to” keep going in a straight line. Inertia depends on an object’s mass. The more mass an object has, the more inertia an object has.

NEWTON’S 1 ST LAW OF MOTION

NEWTON’S 2 ND LAW- THE ACCELERATION OF AN OBJECT DEPENDS ON THE MASS OF THE OBJECT AND THE AMOUNT OF FORCE APPLIED. Weight vs. Mass Weight is a measure of gravity on an object. Mass is the amount of matter (what an object is made of) in an object. F (force) = m (mass) x a (acceleration) F = m x a a (acceleration) = F (force) ÷ m (mass) a = F ÷ m If you want to increase the acceleration of an object, you need to decrease its mass.

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NEWTON’S 3 RD LAW- FOR EVERY ACTION THERE IS AN EQUAL AND OPPOSITE REACTION. Newton’s third law can be simply stated as follows: All forces act in pairs.

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EXIT TICKET- NEWTON’S LAWS COMIC STRIPS Begin working on Newton’s Laws Comic Strips Explain what is going on in the Newton’s Laws comic strips at the bottom of the page. Give each explanation a title (one of Newton’s Laws)