Newton’s Laws of motion. Force -Force is anything that changes the state of rest or motion of an...
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Transcript of Newton’s Laws of motion. Force -Force is anything that changes the state of rest or motion of an...
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Newton’s Laws of Newton’s Laws of motionmotion
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ForceForce -Force is anything that -Force is anything that changes the state of rest or changes the state of rest or motion of an object.motion of an object.
-What are the forces -What are the forces that affect the that affect the coaster’s motion?coaster’s motion?
Describe at least Describe at least three of them. Write three of them. Write your answer in the your answer in the space provided.space provided.
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Balanced forcesBalanced forces-When the forces applied to an object -When the forces applied to an object produces a net force of zero the forces produces a net force of zero the forces cancel each other outcancel each other out-No motion occurs when forces are -No motion occurs when forces are balancedbalanced
-Explain two other -Explain two other examples of examples of balanced forces balanced forces that you see in the that you see in the room.room.
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Unbalanced forcesUnbalanced forces When the forces applied to an object When the forces applied to an object
produces a net force greater than zero produces a net force greater than zero the forces are unbalancedthe forces are unbalanced
Unbalanced forces acting on an object do Unbalanced forces acting on an object do not cancel each other out. The object will not cancel each other out. The object will accelerate in the direction of the accelerate in the direction of the strongest force.strongest force.
Motion occurs when forces are Motion occurs when forces are unbalancedunbalanced
Unbalanced forceshttp://lgfl.skoool.co.uk/viewdetails_ks3.aspx?id=501
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FrictionFriction Force that opposes motion (Example: air Force that opposes motion (Example: air
resistance)resistance) Terminal Velocity – When an object in motion Terminal Velocity – When an object in motion
reaches its maximum velocity reaches its maximum velocity
-Occurs when falling objects stop -Occurs when falling objects stop accelerating because the air resistance accelerating because the air resistance balances the object’s weight.balances the object’s weight.
How does a parachute work?How does a parachute work?
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Newton’s first law of Newton’s first law of motionmotion
Inertia Inertia – Objects at rest, tend to stay – Objects at rest, tend to stay at rest andat rest and
objects in motion tend to stay in motion objects in motion tend to stay in motion until an outside force is applied to the until an outside force is applied to the objectobject
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Why doesn’t this rock Why doesn’t this rock move?move?
InertiaInertia
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Motorcycle getawayMotorcycle getaway
Explain what is happening to the Explain what is happening to the objects in each of these animationsobjects in each of these animations
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Newton’s Second law of Newton’s Second law of motionmotion
Force = mass x acelerationForce = mass x aceleration
F=maF=ma
Force and Mass – An object’s motion Force and Mass – An object’s motion will depend on the force applied and will depend on the force applied and mass of objectmass of object
The greater the mass of an object the The greater the mass of an object the greater the force required to greater the force required to accelerate it or move itaccelerate it or move it
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Which requires more force Which requires more force to move?to move?
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Which will move faster?Which will move faster?
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MomentumMomentumThe product of an objects mass The product of an objects mass
multiplied by its velocitymultiplied by its velocity
Non moving objects have zero Non moving objects have zero momentummomentum
The greater the mass of an object and The greater the mass of an object and the faster it is moving the greater its the faster it is moving the greater its momentum will be momentum will be
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Newton’s third law of Newton’s third law of motionmotion For every action there is an equal For every action there is an equal
and opposite reaction and opposite reaction ((Action/Reaction)Action/Reaction)
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Action/reactionAction/reaction
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Explain thisExplain this
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Applying Newton’s third law Applying Newton’s third law of motionof motion
Can you answer this riddle?Can you answer this riddle?
If you were standing in the center of If you were standing in the center of a frictionless surface what could you a frictionless surface what could you do to cause yourself to slide to the do to cause yourself to slide to the edge? edge?
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Can You define inertia?Can You define inertia?