0%

Chapter 7 – Kinetic energy, potential energy, work I. Kinetic energy. II. Work. III. Work - Kinetic energy theorem. IV. Work done by a constant force: Gravitational force V. Work done by a variable force. - Spring force. - General: 1D, 3D, Work-Kinetic Energy Theorem ... 20cos30 sin30 ( ) ...

Chapter 7 – Kinetic energy, potential energy, work - Physics

Chapter 7 – Kinetic energy, potential energy, work I. Kinetic energy. II. Work. III. Work - Kinetic energy theorem. IV. Work done by a constant force: Gravitational force V. Work done by a variable force. - Spring force. - General: 1D, 3D, Work-Kinetic Energy Theorem ... 20cos30 sin30 ( ) ...

Chapter 7 – Kinetic energy, potential energy, work

II. Work-Kinetic Energy Theorem K K f K i W (7.4) Change in the kinetic energy of the particle = Net work done on the particle III. Work done by a constant force - Gravitational force: W F d mgdcos (7.5) Rising object: W= mgd cos180º = -mgd F g transfers mgd energy from the object’s kinetic energy.

Chapter 6 Work, Kinetic Energy and Potential Energy

Work, Kinetic Energy and Potential Energy 6.1 The Important Stuﬀ 6.1.1 Kinetic Energy For an object with mass m and speed v, the kinetic energy is deﬁned as K = 1 2 mv2 (6.1) Kinetic energy is a scalar (it has magnitude but no direction); it is always a positive number; and it has SI units of kg · m2/s2. This new combination of the basic ...

Work and the Work/Kinetic Energy Theorem Potential Energy

Work and the Work/Kinetic Energy Theorem Potential Energy. ... The definition of work W =F Δx corresponds to the intuitive idea of effort: • More massive object will require more work to get to the same ... Use the work-kinetic energy theorem: x v = 10 m/s m = 25 kg k = 3000 N/m

7. Kinetic Energy and Work Kinetic Energy - Physics

7. Kinetic Energy and Work Kinetic Energy: The kinetic energy of a moving object: k = 1 2 mv 2 • Kinetic energy is proportional to the square of the velocity. If the velocity of an object doubles, the kinetic energy increases by a

Potential Energy Kinetic Energy - Westerville City Schools

Kinetic Energy. Potential Energy. Identify at least 4. similarities and at least 4. differences between potential and kinetic energy. • • • • • • • • • • • •

Work and Kinetic Energy Lectures for University Physics ...

Relation between Kinetic energy and the TOTAL work done on an object: the work-energy theorem The next idea couples kinematics (changes in velocity of an object) and Netwon’s second law of motion (total force on an object leading to an acceleration) to the total work done on an object. The work done by the net (total) force on an object is

Energy Transfer: Gravitational Potential Energy to Kinetic ...

As a group, calculate the Gravitational Potential Energy of the cart at the top of the ramp. The PocketLab should be connected to the VelocityLab app and attached to the wheel of the cart. Your teacher will display and record the velocity data. 2. When your teacher releases the cart observe how the velocity graph changes.

Kinetic and Potential Energy/Conservation of Energy

Many objects possess energy because of their position, potential energy is energy ... Since the force of gravity is a conservative force, the total mechanical energy is constant. Therefore, as the pendulum swings, there is a continuous transfer between ... Kinetic and Potential Energy/Conservation of Energy

Chapter 6 Work and Kinetic Energy

Chapter 6 Work and Kinetic Energy ... Determine the Concept A force does work on an object when its point of application moves through some distance and there is a component of the force ... The net force acting on you is the sum of the gravitational force acting

Kinetic Energy & The Work-Energy Theorem - Union College

Work-Energy Theorem The kinetic energy is dened as K = 1 2 mv2 The work done by the net force on the system equals the change in kinetic energy of the system Wnet = Kf Ki = K This is known as the work-energy theorem Units of K and W are the same (joules) Note: when v is a constant, K = 0 and Wnet = 0, e.g. Uniform circular motion 3

Kinetic Energy and Work-Kinetic Energy Theorem

kinetic energy of 1.23x103J what is the kinetic energy of ball A? 6. At the 1984 Winter Olympics, William Johnson of the United States reached a speed of 29.0 m/s in the downhill skiing competition. Suppose Johnson, who had a mass of 65.4 kg, left the slope at that speed and then slid freely along a horizontal surface.

Energy, Kinetic Energy, Work, Dot Product, and Power

Energy, Kinetic Energy, Work, Dot Product, and Power 8.01t Oct 13, 2004. Energy Transformations • Falling water releases stored ‘gravitational potential energy’ turning into a ‘kinetic energy’ ... acting on the body is the product of the component of the force in the direction

Discussion Examples Chapter 7: Work and Kinetic Energy

Discussion Examples Chapter 7: Work and Kinetic Energy 2. A pendulum bob swings from point I to point II along the circular arc indicated in Figure 7 ... Your friend decides against the paint, so you lower it back to the ground. How much work do you do on the can as you lower it?

Kinetic Energy & The Work-Energy Theorem

Work-Energy Theorem The kinetic energy is dened as K = 1 2 mv2 The work done by the net force on the system equals the change in kinetic energy of the system Wnet = Kf Ki = K This is known as the work-energy theorem Units of K and W are the same (joules) Note: when v is a constant, K = 0 and Wnet = 0, e.g. Uniform circular motion 3

Kinetic – Potential Energy

direction and speed b. mass and volume c. speed and color d. ... c. Volume d. Temperature . 3. Two moving boats are photographed from above at 3:00 p.m. and 3:15 p.m. Which statement correctly compares their motion? (2010 test – question 22) a. They are traveling in the same direction at equal ... Light energy b. Solar energy c. Kinetic ...

Potential and Kinetic Energy - myips.org

Kinetic Energy Definition • Energy in the form of motion • Kinetic energy is dependent on mass and speed. The greater the mass and speed the more kinetic energy the object has Examples • Person running • Bicycle wheel spinning • Frisbee flying in the air .

Potential and Kinetic Energy Virtual Lab

Potential and Kinetic Energy Virtual Lab NAME Potential Energy Kinetic Energy 1. When do you think the clock pendulums and the swings were at their highest and lowest kinetic and potential energy? Why? 2. What happens to the total energy of the pendulum as it swings? What determines the maximum total energy of the pendulum? 3.

Kinetic – Potential Energy - SolPass

(2008 test – question 3) a. The size of the box b. The mass of the box c. The color of the box d. The position of the box Kinetic – Potential Energy 5. What kind of energy do all moving objects have? (2009 test – question 12) a. Light energy b. Solar energy c. Kinetic energy d. Renewable energy . 6. Which labeled part in this picture has

Potential and Kinetic Energy - bb.myips.org

energy Alike Different Potential Kinetic Potential Kinetic Alike Different . When you are done with your graphic organizer, answer the following questions on a separate sheet of paper to be turned into me as your ticket out the door 1. Use and example (not given in the

Kinetic VS Potential Energy Practice

Kinetic VS Potential Energy Practice Part 1: This graph shows a ball rolling from A to G. 1. Which letter shows the ball when it has the maximum kinetic energy? _____ 2. Which letter shows the ball when it has the maximum potential energy? _____ 3. Which letter shows the ball when it has the least potential energy?

Kinetic and Potential Energy - Described and Captioned ...

Kinetic and Potential Energy Vocabulary: ... Identify two ways in which a spring has potential energy. Activities: #1 ... potential to kinetic energy and back, created by gravity. Allow students to hold a ball over their heads, let it bounce off the pavement and allow it to continue bouncing.

KINETIC AND POTENTIAL ENERGY PROBLEMS: KE = 2 GPE =mgh EPE = 2

KINETIC AND POTENTIAL ENERGY PROBLEMS: KE = ½ mv2 GPE =mgh EPE = ½ kx2 k=F/x Section 5-2 Pg. 173 #2 Two bullets have the mass of 3 g and 6 g, respectively. Both are fired with a speed of 40 m/s. Which bullet has more kinetic energy? What is the ratio of their kinetic energies? 1) KE = ½ mv2 so bullet two has more KE…. KE 1 = ½ (.003)(40)2 ...

KINETIC AND POTENTIAL ENERGY WORKSHEET

KINETIC AND POTENTIAL ENERGY WORKSHEET Initials:_____ Potential Energy Potential Energy is energy of position. An object gets potential energy from height, mass and gravity. An object with potential energy has the potential to do work. This potential is only released when the object falls. Kinetic Energy

Potential and Kinetic Energy - cstephenmurray.com

Potential and Kinetic Energy Ex: How much potential energy does a 4 kg object ... ___ A car is resting at the top of a hill. ___ A ball is thrown into the air and is still moving. ___ A ball rolling on the ground. Potential (Ep) or Kinetic (Ek) Energy A 25 kg mass or a 30 kg mass going 5 m/s. Two 10 kg masses, one going 75 m/s, one going 45 m/s

Potential and Kinetic Energy Notes - Weebly

Kinetic vs. Potential 4. Kinetic energy is the energy the object has due to its motion. – A ball rolling down a hill. 5. Potential energy is the energy an object has due to its position, shape, or condition. – A girl on a 10ft diving board, a rubber band, two chemicals that react.

Kinetic and Potential Energy Practice Problems

Kinetic and Potential Energy Practice Problems Solve the following problems and show your work! 1. A car has a mass of 2,000 kg and is traveling at 28 meters per second. What is the car’s kinetic energy? 2. When a golf ball is hit, it travels at 41 meters per second. The mass of a golf ball is 0.045 kg. What is the kinetic energy of the golf ...

Potential and Kinetic Energy T - Stanford University

Potential and Kinetic Energy: Roller Coasters Teacher Version This lab illustrates the type of energy conversions that are experienced on a roller coaster, and as a method of enhancing the students’ understanding of that concept, they will create their own roller coasters to test out their ideas. California Science Content Standards: • 1 ...

Potential and Kinetic Energy: The Roller Coaster Lab

Potential and Kinetic Energy: The Roller Coaster Lab This lab illustrates the type of energy conversions that are experienced on a roller coaster, and as a method of enhancing the students’ understanding of that concept they will create their own roller coasters to test out their ideas. Tips:

STEMonstrations - Kinetic and Potential Energy - nasa.gov

After viewing the video, ask students to explain kinetic and potential energy in their own terms. Can they provide examples of kinetic and potential energy? • Exploration Activity Working in groups of two to three, students will build their own version of a roller coaster using marbles and pipe insulation to explore kinetic and potential energy.

AP Physics Practice Test: Work, Energy, Conservation of Energy

AP Physics Practice Test: Work, Energy, Conservation of Energy ©2011, Richard White www.crashwhite.com Part II. Free Response 6. A block of mass m rests on a rough surface, and has a light spring of spring constant k and unstretched length d attached to one side as shown, with the other end of the spring attached to an anchor. There is a

Answers to Potential and Kinetic Energy skill sheet p h [g ...

Answers to Potential and Kinetic Energy skill sheet E p = m g h [g = 10N/kg]; E p = weight height E k = 1/2 m v2 1. Determine the amount of potential energy of a 5.0-N book that is moved to three different shelves on

Download Kinetic Potential Energy Worksheets With Answers PDF

Kinetic And Potential Energy Worksheet kinetic and potential energy worksheet name:_____ determine whether the objects in the following problems have kinetic or potential energy. then choose the correct formula to use: 2 ke = 1/2 m v or pe = mgh 1. you serve a volleyball with a mass of 2.1 kg. the ball leaves your hand with a speed of 30 m/s.

Kinetic and Potential Energy Worksheet Name - West Linn

Kinetic and Potential Energy Worksheet Name _____ Classify the following as a type of potential energy or kinetic energy (use the letters K or P) 1. A bicyclist pedaling up a hill _____ 2. An archer with his bow drawn _____ 3.

Kinetic and Potential Energy Science Center Activity ...

Energy Science Center Activity, Foldable and Quiz Living Laughing Teaching . Included in this pack: ... Kinetic and Potential Energy Science Center Activity and Foldable. Above is an example of how this center could be utilized. I cut ... Kinetic energy can change into other forms of energy. x

Kinetic and Potential Energy - Central Dauphin School District

Kinetic and Potential Energy ... Potential energy has the ability to become kinetic energy. Potential energy is stored energy that will possibly become energy in motion. It is also the “energy ... Nuclear energy is stored in the information center of an atom: the nucleus. The

Kinetic Energy and Work

Problem 17. A helicopter lifts a 72 kg astronaut 15 m vertically from the ocean by means of a cable. The acceleration of the astronaut is g/10. How much work is done on the astronaut by (a) the force from the helicopter and (b0 the gravitational force on her? Just before she reaches the helicopter, what are her (c) kinetic energy and (d) speed?

Chapter 8 Potential Energy and Conservation of Energy

8-1 Conservative and Nonconservative Forces Conservative force: the work it does is stored in the form of energy that can be released at a later time Example of a conservative force: gravity Example of a nonconservative force: friction Also: the work done by a conservative force moving an object around a closed path is zero;

Chapter 7 – Potential energy and conservation of energy

Chapter 7 – Potential energy and conservation of energy I. Potential energy Energy of configuration II. Work and potential energy III. Conservative / Non-conservative forces IV. Determining potential energy values: - Gravitational potential energy - Elastic potential energy I. V. Conservation of mechanical energy VI. External work and thermal ...

Chapter 14 Potential Energy and Conservation of Energy - MIT

14.4 Change in Potential Energy and Zero Point for Potential Energy ... Equation Chapter 8 Section 1 Chapter 14 Potential Energy and Conservation of Energy There is a fact, or if you wish, a law, governing all natural phenomena ... surroundings undergo a transition from an initial state to a final state, the change in energy is zero, ΔE=Δ ...

Chapter 14 Potential Energy and Conservation of Energy

Equation Chapter 8 Section 1 Chapter 14 Potential Energy and Conservation of Energy There is a fact, or if you wish, a law, governing all natural phenomena that are known to date. There is no exception to this law — it is exact as far as we know. The law is called the conservation of energy. It states that

Chapter 8: POTENTIAL ENERGY AND CONSERVATION OF ENERGY

The wound spring of a clock possesses: A. kinetic but no potential energy B. potential but no kinetic energy C. both potential and kinetic energy in equal amounts D. neither potential nor kinetic energy E. both potential and kinetic energy, but more kinetic energy than potential energy

Chapter 8: Potential Energy and Conservation of Energy ...

Chapter 8: Potential Energy and Conservation of Energy Work and kinetic energy are energies of motion. We need to introduce an energy that depends on location or position. This energy is called potential energy. Consider a vertical spring oscillating with mass m attached to one end. At the extreme ends of travel

PHYSICS STUDY GUIDE CHAPTER 10: WORK-ENERGY TOPICS ...

KINETIC ENERGY • KINETIC ENERGY: Ability to do work as a result of the velocity of the system. • Energy associated with the velocity (v) of an object. • Example: A cool 1200 kg yellow car is running at 45 m/s. As a sharp turn is coming ahead the driver slows down to 20 m/s.

Physics Notes Class 11 CHAPTER 6 WORK, ENERGY AND POWER

Physics Notes Class 11 CHAPTER 6 WORK, ENERGY AND POWER Work When a force acts on an object and the object actually moves in the direction of force, then the work is said to be done by the force. Work done by the force is equal to the product of the force and the displacement of the object

WorkKinetic Energy Lab - physicsclassroom.com

lab notebook. Data: m = kg Fave = N x (m )v /s Wo rk JKE % Dif enc Scoring Rubric: E6. WorkKinetic Energy Lab Included, labeled and organized all parts of the lab report. Data section includes the provided table. Data are reasonably accurate. Sample calculations are shown for

Work and Kinetic Energy Lab - thephysicsaviary.com

Name: Date: Section 2: Factors that Determine the Kinetic Energy of an object The kinetic energy of an object depends on the _____ of the object and the

Physics--Chapter 5: Work and Energy Chapter 5 Test Review

Physics--Chapter 5: Work and Energy Chapter 5 Test Review 10) A 40.0 N crate starting at rest slides down a rough 6.0 m long ramp inclined at 30.0° with the horizontal. The force of friction between the crate and ramp is 6.0 N. Find the velocity of the crate at the bottom of the incline. (6.4 m/s)

WORK AND KINETIC ENERGY - physicsx.pr.erau.edu

WORK AND KINETIC ENERGY 6.3. IDENTIFY: Each force can be used in the relation for parts (b) through (d). For part (e), apply the net work relation as SET UP: In order to move the crate at constant velocity, the worker must apply a force that equals the

Today: - Work and Rotational Kinetic Energy (10.10) - HW 8 ...

A woman with mass 50 kg is standing on the rim of a large disk that is rotating at 0.50 rev/s about an axis through its center. The disk has mass 110 kg and radius 4.0 m. Calculate the magnitude of the total angular momentum of the woman-plus-disk system.

Problem Set 5 Work and Kinetic Energy Solutions

Problem Set 5 Work and Kinetic Energy Solutions Problem 1: Work Done by Forces a) Two people push in opposite directions on a block that sits atop a frictionless surface (The soles of their shoes are glued to the frictionless surface). If the block, originally at

Electric Potential Work and Potential Energy

Electric Field from Electric Potential We have seen in the previous example of the electric potential between two parallel plates, that V s Δ = Δ E where Δs is the spacing between the plates, where the path is parallel to the field direction (and perpendicular to equipotential surfaces). In fact, the field points in direction opposite

Rotational Kinetic Energy - Physics

Rank these L figures according to their moments of inertia about the indicated axes, from largest to smallest. Ignore the width of each rod but not the length. ... The Rotational Kinetic Energy If an object rolls without slipping, I ...

PHY 231 HW8 Kinetic energy and work View Basic/Answers ...

(a) Calculate the force needed to bring a 950-kg car to rest from a speed of 90.0 km/h in a distance of 120 m (a fairly typical distance for a non-panic stop). (b) Suppose instead the car hits a concrete abutment at full speed and is brought to a stop in 2.00 m. Calculate the force exerted on the car and compare it with the force found in part (a).

Physics 08-05 Electric Potential Energy: Potential ...

same voltage, assuming non-relativistic final speeds. Take the mass of the hydrogen ion to be 1.67×10−27 kg. (OpenStax 19.1) 42.8 8. An evacuated tube uses an accelerating voltage of 40 kV to accelerate electrons to hit a copper plate and produce x-rays. Non-relativistically, what would be the maximum speed of these electrons?

CHAPTER 7:WORK,ENERGY,AND ENERGY RESOURCES

we"can"calculate"the"mass"of"food"required:" (3600 kcal)(0.35) 1260 kcal. (3600 kcal)(0.60) 2160 kcal; and (3600 kcal)(0.05) 180 kcal; fat carbohydrate protein = = = = = = E E E " Now,"from"Table"7.1"we"can"convert the"energy"required"into"the"mass"required" for"each"component of"their"diet:" 135.5 g. 9.3 kcal 1 g 2160 kcal 9.3 kcal 1 g 526.8 g ...

Rotational Kinetic Energy - Boston University Physics

Rotational Kinetic Energy 2 Rotational Kinetic Energy Energy associated with rotation is given by an equation analogous to that for straight-line motion. ... sphere, all with the same mass, M and radius, R. If we release them from rest at the top of an incline,

Work and Energy Chapter 5 Work, 5.1 Work Power 5.2 Energy ...

previous page, all five joules of input work were transformed to five joules of output work. An engineer would say the machine was 100 percent efficient, because all the input work became output work and none was lost. How friction affects real machines In real machines, the work output is always less than the work input.

AP PHYSICS ELECTRICAL POTENTIAL ENERGY ... - Beaver Dam, WI

(e) Charge -eq is now moved along the positive x-axis to a very large distance from the other two charges. The magnitude of the force on the -eq charge at this large distance now varies as 1/13. Explain why this happens. Two point charges, Q I and Q, , are located a distance 0,20 meter apart. as shown above. Charge Q.

Physics P Worksheet 6-2: Spring Potential Energy N

c. Do a pie chart analysis for this situation when (A) the spring is stretched beyond its maximum (from part b above) so it slides back, (B) when the box slides back through its equilibrium position, and (C) after the box oscillates back and forth until and comes to a stop. Assume your system includes the spring, box, and table top.