Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Density of states wikipedia , lookup
Theoretical and experimental justification for the Schrödinger equation wikipedia , lookup
Centripetal force wikipedia , lookup
Relativistic mechanics wikipedia , lookup
Eigenstate thermalization hypothesis wikipedia , lookup
Kinetic energy wikipedia , lookup
Gibbs free energy wikipedia , lookup
Internal energy wikipedia , lookup
Newton's laws of motion wikipedia , lookup
Hunting oscillation wikipedia , lookup
2013-2014 AP Physics UNIT 6 – Work & Energy Chapters 6 & 7 Unit Objectives: At the completion of this unit, you should be able to Understand the definition of work so you can: o Calculate the work done by a specified constant force on a body that undergoes a specified displacement o Relate the work done by a force to the area under a graph of force as a function of position, and calculate this work in the case where the force is a linear function of position o Use integration to calculate the work performed by a force F(x) on a body that undergoes a specified displacement in one dimension o Use the scalar product operation to calculate the work performed by a specified constant force F on a body that undergoes a displacement in a plane Understand the work-energy theorem so you can: o State the theorem precisely and prove it for the case of motion in one-dimension o Calculate the change in kinetic energy or speed that results from performing a specified amount of work o Calculate the work performed by the net force, or by each of the forces that makes up the net force, on a body that undergoes a specified change in speed or kinetic energy o Apply the theorem to determine the change in a body’s kinetic energy and speed that results from the application of specified forces, or to determine the force that is required in order to bring a body to rest in a specified distance Understand the concept of a conservative force so you can: o State two alternative definitions of “conservative force” and explain why these definitions are equivalent o Describe two examples each of conservative forces and non-conservative forces Understand the concept of potential energy so you can: o State the general relation between force and potential energy, and explain why potential energy can be associated with conservative forces o Calculate a potential energy function associated with a specified one-dimensional force F(x) o Given the potential energy function U(x) for a one-dimensional force, calculate the magnitude and direction of force o Write an expression for the force exerted by an ideal spring and for the potential energy stored in a compressed or stretched spring o State the generalized work-energy theorem and use it to relate the work done by non-conservative forces on a body to the changes in kinetic and potential energy of the body Understand the concepts of mechanical energy and total energy so you can: o State, prove and apply the relation between the work performed on a body by non-conservative forces and the change in a body’s mechanical energy o Describe and identify situations in which mechanical energy is converted to other forms of energy o Analyze situations in which a body’s mechanical energy is changed by friction or a specified externally applied force Understand conservation of energy so you can: o Identify situations in which mechanical energy is or is not conserved o Apply conservation of energy in analyzing the motion of bodies that are moving in a gravitational field and are subject to constraints imposed by strings or surfaces o Apply conservation of energy in analyzing the motion of bodies that move under the influence of springs o Apply the conservation of energy in analyzing the motion of bodies that move under the influence of other specified one-dimensional forces Understand the definition of power so you can: o Calculate the power required to maintain the motion of a body with constant acceleration (e.g., to move a body along a level surface, to raise a body at a constant rate, or to overcome friction for a body that is moving at a constant speed) o Calculate the work performed by a source that supplies constant power, or the average power supplied by a force that performs a specified amount of work o Prove that the relationship P F v follows from the definition of work, and apply this relation in analyzing particle motion Unit Outline: Date Topic/Activity T 11/12 Day 3 W 11/13 Day 4 F 11/15 Day 1 Systems, Work, Scalar Product Review Assignments Investigation: Springs?? HW #16(due Thur., 12/2):pg.198-200 E: #1-7(odd),19,21,23,24,26,28,34,37 Complete analysis of data Hooke’s Law / Work-Energy Theorem / Power M 11/18 Day 2 T 11/19 Day 3 W 11/20 Day 5 Problem Session Gravitational PE Conservative/Non-conservative Forces Energy Diagrams F 11/22 Day 1 M 11/25 Day 2 T 11/26 Day 3 W-Th 11/27-29 Early Dismissal M 12/2 Day 4 Problem session Science Drop HW #17(due Mon., 12/2):pg.200-04 E: #39,41,53,54 P: #63,66,75,78,81,85,86,91 HW #18(due Tue,12/2): pg.233-39 E: #5,13,14,17,23,35,36,38,42, 43,47,55,68,75,81 TEST – PART A (Multiple Choice) TEST – PART B (Free Response) Thanksgiving Break Impulse & Momentum Conservation of Momentum Test Corrections (this session may change to a lab) Answers to even #’d problems (from book) are on Haiku….. Note: Subject matter for 12/2 (next unit) may change HW #19 (due Mon., 12/16): pg. 26870 E: #1-5,9,11,13,14,17,19,20,24, 26,28,29