The Work Energy Principle part 3

Slides:



Advertisements
Similar presentations
Oscillations and Waves Energy Changes During Simple Harmonic Motion.
Advertisements

Kinetic and Potential Energy
Physics Energy. Law of Conservation of Energy energy cannot be created or destroyed only transferred from one form to another Electric  LightChemical.
What is energy? Kinetic Energy.
Kinetic energy KEep moving!. Kinetic Energy  Kinetic comes from the Greek work ‘to move’  So Kinetic Energy is Moving energy  If we are talking about.
Energy. A. Energy Definition The ability to do work.
11.2 notes.  In other words, all the kinetic energy in a system plus all the potential energy of a system is total amount of mechanical energy in the.
Kinetic energy. Equations The kinetic energy of a moving object is one half of the product of its mass multiplied by the square of its velocity. or.
THE NATURE OF ENERGY IPC Notes. ENERGY Energy is involved in every change that occurs Energy can be found in many different forms ex) thermal, electrical,
The Work Energy Principle Part 4 By Heather Britton.
LESSON 3 – KE and PE (4.2) LEARNING OUTCOMES: State and be able to use the equation: change in gravitational potential energy (PE) = mass (m) x gravitational.
Potential and Kinetic Energy Problems
Kinetic energy. Equations The kinetic energy of a moving object is one half of the product of its mass multiplied by the square of its velocity. or.
Kinetic Energy.
Force, Mass and Momentum. Newton’s Second Law: F = ma 1 newton = 1 kg ∙ 1 m/s² Force: 1 pound = 4.45 newtons Your weight is the force of gravity: F =
Chapter 11.  Kinetic Energy – energy of motion  Formula:KE = 1/2mv 2  Units of KE =the joule  m = mass in kg  v = velocity in m/s.
Energy. Energy & Work Closely related Energy: ability to do work Work: transfer of energy Both measured in Joules.
Kinetic Energy A moving object has energy because of its motion. This energy is called kinetic energy.
ENERGY The measure of the ability to do work Conservation of energy -energy can change forms but can not be destroyed -the total amount of energy in the.
Kinetic Energy Contents: Rest Energy /Moving energy.
Kinetic and Potential Energy
Solving Energy problems.  A 0.1-kg baseball has 20 joules of kinetic energy as it passes over the plate. How fast is it moving?
Chapter 5 Work and Energy. 6-1 Work Done by a Constant Force The work done by a constant force is defined as the distance moved multiplied by the component.
Energy and Power.
Kinetic Energy and the Work/Energy Principle Energy is the ability to do work. Total energy is always conserved. A moving object can do work on another.
Sect. 7-4: Kinetic Energy; Work-Energy Principle.
JR/2008 Conservation of Energy Conservation of Energy:- the principle states that:- ENERGY CANNOT BE CREATED OR DESTROYED This can be put to good use in.
Momentum Part 3 By: Heather Britton. Elastic Collisions Elastic collisions are a special type of collisions that do not often occur in everyday experience.
Energy Note Outline Energy is the ability to perform work Units for energy is Joules (J)--kgm²/s².
Kinetic Energy and Work. Energy Loosely defined as the ability to do work There are many types of energy, but the total energy of a system always remains.
K INETIC E NERGY AND W ORK. E NERGY Loosely defined as the ability to do work There are many types of energy, but the total energy of a system always.
Kinetic Energy Energy of Motion. Kinetic Energy KE = ½ mv 2 m = mass v = speed (velocity) KE = ½ mv 2 m = mass v = speed (velocity)
Kinetic Energy m s F v E k = 1 / 2 mv 2 E k - Kinetic energy v - velocity m - mass.
Objectives: The student will be able to: 1. Define each type of mechanical energy and give examples of types of energy that are not mechanical. 2. State.
Work-Energy Theorem Work : W net = F net d However, we know F net = ma So work gives an object some acceleration Acceleration means the velocity changes.
Sect. 7.5: Kinetic Energy Work-Kinetic Energy Theorem.
Chapter 12 Work, Energy and Power. Energy Is the ability to do work Expressed in Joules (dzuls) Forms of energy: Mechanical, Heat, light, and Chemical.
Work and Energy 1 st Law of Thermodynamics  Energy cannot be created or destroyed. It can only be converted from one form into another.
Chapter 6. When objects collide their motion changes and this is the result of a concept called momentum. Momentum = mass x velocity p = mv kgm/s or Ns.
Kinetic Energy Objectives: Define kinetic energy
1a i) KE = ½ x mass x speed2 1a i)
PE Definition Stored Energy Energy due to position.
Elastic Collisions.
April 8, 2009 What is the potential energy in the following situations: 4 kg object at a height of 6 m 4 N object at a height of 6 m Fill in the blanks:
Potential and Kinetic Energy
Energy.
Energy Chapter 4.
Distinguish between kinetic and potential energy.
KINETIC ENERGY: ENERGY OF MOTION
Kinetic Energy: Energy Due to Motion (ex)*An Object in Motion)
Energy.
Energy comes in many forms: mechanical, electrical , magnetic, solar,
Newton’s Laws.
Warm-up: What types of energy do you think are shown in the video
Energy.
MOMENTUM (p) is defined as the product of the mass and velocity -is based on Newton’s 2nd Law F = m a F = m Δv t F t = m Δv IMPULSE MOMENTUM.
ENERGY.
Derivation of the Exchange of Velocities
Momentum Part 2 By: Heather Britton.
Energy, e (Units of joules (J))
B2.3 Kinetic Energy and Motion.
Mechanical Energy.
Work and Energy Chapter 5 Mrs. Schwartz.
GRAVITATIONAL POTENTIAL & KINETIC ENERGY
Objectives Define work in terms of energy.
Work and Energy.
Potential and Kinetic Energy
(a) Find the PE at A PE = m g h = ( 500 kg )( 9.8 m/s2 )( 30 m )
Kinetic Energy m d v F KE = 1/2mv2 KE - Kinetic energy v- velocity
Presentation transcript:

The Work Energy Principle part 3 By Heather Britton

Energy of Motion Aside from potential energy, there is also energy of motion The energy of motion is called kinetic energy Kinetic is a Greek word for motion There is a formula to determine a moving objects kinetic energy

Derivation of the Kinetic Energy Formula Recall ΔE = W = FΔx F = ma a = (v - v0)/t vavg = (v + v0)/2 Δx = vavgt KE = (1/2)mv2

Kinetic Energy KE = (1/2)mv2 The v2 is very important conceptually If one object has twice the velocity of an equal mass object it has 4 times the kinetic energy Three times as fast equals 9 times the kinetic energy

Example 7 A 0.200 kg dart leaves a toy gun with a velocity of 11.2 m/s. What is the kinetic energy of the dart? Answer 12.5 J

Practice www.physicsclassroom.comhyperlink

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

© 2024 SlidePlayer.com Inc. All rights reserved.