Kinetic and Potential Energy

Slides:



Advertisements
Similar presentations
Chapter 10.
Advertisements

1. Do you think the Skater will make it over the first hump
© 2015 Pearson Education, Inc.
ConcepTest Clicker Questions
AP Physics B Summer Course 年AP物理B暑假班
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Addison-Wesley. Chapter 10. Energy Chapter Goal: To introduce the ideas of kinetic and.
© 2015 Pearson Education, Inc.
Kinetic Energy and Gravitational Potential Energy We can rewrite
Chapter 15 Energy Assignments 15.1 Math Skills 1-3 p 448; AQs 1-9 p452
Conservative Forces & Potential Energy
Physics 111 Practice Problem Statements 07 Potential Energy & Energy Conservation SJ 8th Ed.: Chap 7.6 – 7.8, 8.1 – 8.5 Contents: 8-4, 8-5, 8-16, 8-19*,
Conservation of Energy
Energy Chapter 5. Mechanical Energy Energy due to movement or position. Energy due to movement or position. Kinetic Energy – energy of motion Kinetic.
ENERGY REVIEW. What is energy? The ability to do work or make change in matter.
Copyright © 2007, Pearson Education, Inc., Publishing as Pearson Addison-Wesley. Important forms of energy How energy can be transformed and transferred.
Energy & the Roller Coaster
Conservation of Energy Energy is Conserved!. The total energy (in all forms) in a “closed” system remains constant The total energy (in all forms) in.
Phy100: More on Energy conservation Mechanical energy (review); Goals: Work done by external forces; Understand conservation law for isolated systems.
Phy100: More on Energy conservation 1)Mechanical energy (review); 2) Conservation law for isolated systems; 3) Energy model for open systems and work done.
Section 10.4 Potential Energy
Copyright © 2007, Pearson Education, Inc., Publishing as Pearson Addison-Wesley. Important forms of energy How energy can be transformed and transferred.
Copyright © 2007, Pearson Education, Inc., Publishing as Pearson Addison-Wesley. Important forms of energy How energy can be transformed and transferred.
PHYSICS 231 INTRODUCTORY PHYSICS I
D. Roberts PHYS 121 University of Maryland Physic² 121: Phundament°ls of Phy²ics I October 27, 2006.
Physics 151 Week 10 Day 2 Topics: Apparent Weight & Conservation of Energy  Apparent Weight  Conservation of Energy.
Copyright © 2007, Pearson Education, Inc., Publishing as Pearson Addison-Wesley. Important forms of energy How energy can be transformed and transferred.
Chapter 5 Energy.
Conservation of Energy November The conservation of energy.  In a closed system, energy is neither created nor destroyed. Energy simply changes.
Halliday/Resnick/Walker Fundamentals of Physics 8th edition
Potential Energy and Conservative Forces
What are Kinetic and Potential Energy?
Conservation of mechanical energy
Bell Work Gravitational Potential Energy increases if height (increases or decreases)? Attractive objects gain more potential energy when they are (closer.
One form of energy can be converted into another form of energy. Conservative and non-conservative forces CONSERVATION OF ENERGY Chapter 8: Potential Energy.
Energy Conversion and Conservation
Work and Energy. What is energy? Defined as “ability to do work” But, what is work? Work = Force * displacement When work is done, energy is transferred.
5.3 The Conservation of Mechanical Energy THE PRINCIPLE OF CONSERVATION OF ENERGY The term conserved means constant.
The Law of Conservation of Energy
Fall Semester Review: Physics Situation 1: Air resistance is ignored. A person is standing on a bridge that is 150 m above a river. a. If a stone with.
© 2012 Pearson Education, Inc. A piece of fruit falls straight down. As it falls, A. the gravitational force does positive work on it and the gravitational.
Conservation of Energy System Energy of Gravitational Interaction -- Gravitational Potential Energy If the system contains Earth and an object (or objects),
© 2012 Pearson Education, Inc. A piece of fruit falls straight down. As it falls, A. the gravitational force does positive work on it and the gravitational.
Chapter 10 Lecture.
Energy and Work Energy and Its Conservation Chapters 10 & 11.
1. Work [W] = N*m = J Units: Work done by forces that oppose the direction of motion will be negative. Work and energy A. PositiveB. NegativeC. Zero Example:
By: David Martinez & Luke Humphrey. When something is conserved, it means that it remains constant. No amount is lost over time. Even if it changes form,
Gravitational Potential & Kinetic Energy
Kinetic and Potential Energy
Chapter 5.2. What do you think? What is meant when scientists say a quantity is conserved? Describe examples of quantities that are conserved. Are they.
FOR SCIENTISTS AND ENGINEERS physics a strategic approach THIRD EDITION randall d. knight © 2013 Pearson Education, Inc. Chapter 10 Lecture.
Chapter 10 Lecture.
Conservation of Energy IT’S THE LAW. Lifting a Ball When you lift a ball to a certain height you do work on it. When you lift a ball to a certain height.
Chapter 5 Work and Energy. Mechanical Energy  Mechanical Energy is the energy that an object has due to its motion or its position.  Two kinds of mechanical.
Chapter 10 Lecture Presentation Energy and Work © 2015 Pearson Education, Inc.
© 2010 Pearson Education, Inc. PowerPoint ® Lectures for College Physics: A Strategic Approach, Second Edition Chapter 10 Energy and Work.
The term mechanical energy means the sum of an object’s potential and kinetic energy. When work is done on an object, the object gains energy as a result.
© 2015 Pearson Education, Inc.
Section 10.3 Kinetic Energy (cont.)
Chapter 7 Work and Energy
Work and energy 1. Work Wf = |fk| |Δx| cos(180°) = -|fk| |Δx| < 0
from rest down a plane inclined at an angle q with the horizontal.
Chapter 10: Energy and Work
Do Now Heading: Energy Transformations
Aim: How do we explain conservation of energy?
Aim: How do we explain conservation of energy?
QuickCheck 10.1 Rank in order, from largest to smallest, the gravitational potential energies of the balls. 1 > 2 = 4 > 3 1 > 2 > 3 > 4 3 > 2 > 4 > 1 3.
Warm-Up *Turn in Potential Energy Practice
Figure 8.1  The work done by an external agent on the system of the book and the Earth as the book is lifted from a height ya to a height yb is equal to.
7.3 Conservation of Energy
Presentation transcript:

Kinetic and Potential Energy It’s “Natural Money”

From the Parable of the Lost Penny

Conservation of Energy

Kinetic and Potential Energy

Kinetic and Potential Energy

QuickCheck 10.1 A child is on a playground swing, motionless at the highest point of his arc. What energy transformation takes place as he swings back down to the lowest point of his motion? K  Ug Ug  K Eth  K Ug  Eth K  Eth Answer: D Slide 10-27 6

QuickCheck 10.1 A child is on a playground swing, motionless at the highest point of his arc. What energy transformation takes place as he swings back down to the lowest point of his motion? K  Ug Ug  K Eth  K Ug  Eth K  Eth Answer: D Slide 10-27 7

Energy Bar Charts A pebble is tossed up into the air. The simple bar charts below show how the sum of K + Ug remains constant as the pebble rises and then falls. Slide 10-34

QuickCheck 10.4 Rank in order, from largest to smallest, the gravitational potential energies of the balls. 1 > 2 = 4 > 3 1 > 2 > 3 > 4 3 > 2 > 4 > 1 3 > 2 = 4 > 1 Answer: D Slide 10-38 9

QuickCheck 10.4 Rank in order, from largest to smallest, the gravitational potential energies of the balls. 1 > 2 = 4 > 3 1 > 2 > 3 > 4 3 > 2 > 4 > 1 3 > 2 = 4 > 1 Answer: D Slide 10-39 10

Gravitational Potential Energy on a Frictionless Surface The total mechanical energy for a particle moving along any frictionless smooth surface is conserved, regardless of the shape of the surface. Slide 10-48

QuickCheck 10.5 Starting from rest, a marble first rolls down a steeper hill, then down a less steep hill of the same height. For which is it going faster at the bottom? Faster at the bottom of the steeper hill. Faster at the bottom of the less steep hill. Same speed at the bottom of both hills. Can’t say without knowing the mass of the marble. Answer: D Slide 10-49 12

QuickCheck 10.5 Starting from rest, a marble first rolls down a steeper hill, then down a less steep hill of the same height. For which is it going faster at the bottom? Faster at the bottom of the steeper hill. Faster at the bottom of the less steep hill. Same speed at the bottom of both hills. Can’t say without knowing the mass of the marble. Answer: D Slide 10-50 13

QuickCheck 10.7 Three balls are thrown from a cliff with the same speed but at different angles. Which ball has the greatest speed just before it hits the ground? Ball A. Ball B. Ball C. All balls have the same speed. Answer: D Slide 10-57 14

QuickCheck 10.7 Three balls are thrown from a cliff with the same speed but at different angles. Which ball has the greatest speed just before it hits the ground? Ball A. Ball B. Ball C. All balls have the same speed. Answer: D Slide 10-58 15

FRQ Practice

Feedback: Privacy Policy Feedback
Do Not Sell My Personal Information
About project: SlidePlayer Terms of Service

© 2025 SlidePlayer.com. Inc. All rights reserved.