AP Physics 1 First Semester Review of EVERYTHING I learned KINEMATICS: The general relationship between position, velocity, and acceleration: o I can analyze x vs. t, v vs. t, and a vs. t graphs I know 4 main kinematics equations: A vector is: o The rules for adding vectors: o I know how to find a resultant vector: I know how to use my 4 kinematics equations to solve problems in 2 dimensions: o My 2 main “projectile” formulas: o Velocity in x-direction vs. Velocity in y-direction: o Steps for solving projectiles questions with an initial velocity: o Basic picture of a projectile with velocity and acceleration vectors: DYNAMICS/NEWTON’S LAWS Newton’s Three Laws: o 1st – o 2nd – o 3rd – Net force means: If there is NO NET FORCE on an object, then the object is doing 1 of 2 things: o The object is o Or the object is I can draw a well-labeled for body diagram, for example: I know the steps for solving… o Hanging stop light questions: o Pulley questions: o Pulley on Table questions: o Pulley on Ramp questions: When I sum my forces, I know that I can set them equal to 1 of 2 things: o = o = Friction is: o 2 types of friction: o What the coefficient of friction means: o Formula for Frictional force: o I can figure out when an object will start to slip, for example: Terminal Velocity is: o I can calculate terminal velocity, for example: Action-Reaction Pairs are: A great picture for remembering equal and opposite forces is: WORK, ENERGY & POWER Work is: o Work is positive when: o Work is negative when: o Work is zero when: o Formula for Work: I can calculate work from a graph, for example: Work-Energy Theorem is: o Example problem: o I know that I have to find the _________________ on an object before finding the NET WORK done on an object. o If I want to find the work done by a specific force, I use that force in the work equation. Example: o I can figure out the stopping distance needed for an object using the Work-Energy Theorem. Example: o If an object is moving at a CONSTANT VELOCITY, then the NET WORK is __________. BUT, work is still done on the object by the individual forces, for example: More formulas for this chapter: o Work o Kinetic Energy o Gravitational Potential Energy o Elastic Potential Energy o Hooke’s Law Law of Conservation of Energy: o I can use conservation of energy in situations such as: Atwood’s machine Pendulums Mass-Spring systems Objects that slide and compress springs Power is: o 4 Formulas for power: o When a person is lifting themselves up (as in going up a flight of stairs), the force I use in the power equation is _________________________. o When calculating the power needed to lift something up, the force I use in the power equation is________________________. o When I calculate AVERAGE POWER, then I need to use AVERAGE VELOCITY. LINEAR MOMENTUM Formulas: o Momentum: o Impulse: o Impulse-Momentum Theorem: o Conservation of Momentum: I can use graphs to solve momentum questions, for example: o 1 types of collision is:___________________ After colliding, the objects _______________________ Momentum is _______________________ Kinetic Energy is _____________________ o Another type of collision is ___________________ After colliding, the objects _______________________ Momentum is ______________________ Kinetic Energy is _____________________ I can find the loss of energy in a collision by: Impulse is ______________ or F______.