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