Conservation of Mechanical Energy

Slides:

Advertisements

Similar presentations

Conservation of Energy

Advertisements

The Bernoulli Equation - Work and Energy

Chapter 7: Kinetic Energy and Work. Energy and Work Kinetic energy Work done by a constant force Work–kinetic energy theorem.

MOMENTUM. DEFINITIONS Linear momentum (p) is defined as the product of mass (m) and velocity (v): p = m x v SI-unit of momentum is 1 kg ∙ m ∙ s -1, alternative.

Elastic Potential Energy: More Practice. Conservation of Mechanical Energy: Learning Goal The student will investigate a simple energy transformation,

5.3 Conservation of Energy pp Mr. Richter.

Energy Ability to do work … “Does stuff” Energy comes in many different forms Energy can change from one form to another Energy is usually measured in.

7th Grade Unit 6: Forces and Motion Lesson 2: Potential and kinetic Energy Vocabulary of Instruction:

Questions From Reading Activity? Objectives  Understand that at the molecular level, most other forms of energy (electric, nuclear, thermal, and chemical)

Energy is Conserved. Page 220 Example 7.9 Gravitational Potential Energy = mgh = mgy Elastic Potential Energy = ½ky 2 F spring = ky Kinetic Energy = ½mv.

Types of Energy and the law of conservation of energy p

Using Newton’s 2 nd Law to solve problems can be complicated.

T W DAVIES1 CONSERVATION OF MECHANICAL ENERGY FRICTIONLESS FLOW ALONG A STREAMLINE MECHANICAL ENERGY BALANCE ON A UNIT MASS OF FLUID –POTENTIAL ENERGY.

Energy. Definition Energy is the ability to do work Work is done on an object whenever a force (push or pull) moves an object through a distance Work.

Work and Energy Conservation of Energy. Conserved Quantities Conserved – remains constant –M–M–M–May change form Mass and energy are both conserved.

Aim: How can we explain the Law of Conservation of Energy? Do Now: Homework Review.

Ch.9, Sec.3 – Conservation of Energy Where Does the Energy Go? Where Does the Energy Go?  friction: a force that opposes motion between two surfaces that.

Physics Review for the GHSGT. Types of energy Solar Electrical Nuclear Chemical Mechanical Potential Kinetic.

Energy Transformations and Conservation It’s the Law!

Energy Transformations and Conservation. Review What are the 2 types of energy? What are the 6 forms of energy? 1 Form + 5 other forms. Why?

ENERGY. A. Kinetic Energy (KE) 1. Energy in the form of motion. 2. Energy Depends On: a. Mass of the object. b. Velocity of the object.

AP PHYSICS UNIT 3 WORK, ENERGY & POWER  Unit 3 Section 1 Lesson 1 Work Objectives: Show understanding of the Physics concept of Work Correctly identify.

Ideas about Work and Energy What exactly is energy?

Physics 2015: Mechanical Energy Conservation Purpose Study energy conservation by looking at the relationship between three different types of energy:

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,

Ch. 8 Lesson 2 Conservation of Energy Study Jams Video: Energy and Mat ter.

Conservation of Energy. Changing Forms of Energy  Energy is most noticeable as it transforms from one type to another.  What are some examples of transforming.

Chapter 10: Section 2.  Describe the First Law of Thermodynamics  Make calculations involving changes in internal energy  Create and analyze energy.

Conservation of Energy Ch. 8 Lesson 2. Mechanical Energy Form of energy associated with the motion, position, or shape of an object. Mechanical energy.

Conservation of Energy Energy and its Conservation

Types of Energy 6-5.1Identify the sources and properties of heat, solar, chemical, mechanical, and electrical energy.

Conservative and Non-Conservative Forces The work to lift an object and to carry it up an incline plane are the same…simple machines save us force not.

Kinetic Energy Energy an object possesses when in motion. Law of Conservation of Energy – in any physical or chemical change, energy can change form,

Other Forms of Energy; Energy Transformations and the Law of Conservation of Energy The law of conservation of energy states that the total energy is.

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.

Conservation of Energy Notes. Learning Targets I can state the law of conservation of energy I can define the two categories of energy I can determine.

Section 5–3: Conservation of Energy Physics Coach Kelsoe Pages 173 – 178.

Conservation of Energy. Changing Forms of Energy  Energy is most noticeable as it transforms from one type to another.  What are some examples of transforming.

Heat = mass X change in temp X specific heat 1.10 g X 33 o C X 0.90 J/g o C = 297 J g X  T X 0.50 J/g o C = 5275 J 1.25  T = 5275 – divide both.

Conservation of Energy Summary. KE and PE  In many situations, there is a conversion between potential and kinetic energy.  The total amount of potential.

Work and Energy  Work done by a Force  Kinetic Energy  Potential Energy  Conservative Force  Non Conservative Force  Conservation of Mechanical Energy.

Work, Energy, Kinetic Energy and the Conservation of Energy

Conservation of Mechanical Energy: Learning Goal

Conservation of Energy and Power

Topic VII Work and Energy

Review Topics For Final Exam

The Law of Conservation of Energy:

Section 3 Conservation of Energy

قطار التعرج مجلس أبوظبي للتعليم منطقة العين التعليمية

Conservation of Energy

Conservation of Energy

It just keeps on going, and going and going

Conservation of Energy

Amazing Race! Which track profile will result in the fastest speed of marble when rolled from rest from the top?

Ch.9, Sec.3 – Conservation of Energy

Conservation of Energy

ماذا نعني بأن الطاقة كمية محفوظة؟!

Conservation of Energy

Conservation of Energy

Energy: Conservation 9th Grade Science.

Conservation of Energy

Conservation of Energy

FOLDABLES, FLASH CARDS, OR PAPER PENCIL LIST

Sect. 7.7: Conservative & Non-Conservative Forces

How can you find an objects mechanical energy?

Integrated Science Unit 7 - Physics

Conservation of Energy

Energy in thermal systems

Conservation of Energy

Conservation of Energy

Presentation transcript:

Conservation of Mechanical Energy

Law of Conservation of energy In a frictionless system, mechanical energy is conserved (energy can change form, but the total amount of energy remains constant) Mechanical energy is the sum of potential and kinetic energy

Calculations For Closed Systems

Conservation of Energy in an Open System In some cases energy is lost to friction or heat In the cases, mechanical energy is lost, but total energy is not

*Sample Problem – Open System Calculate the energy lost to friction in the following example

Brainiacs – Loss of Mechanical Energy

Homework p. 125 #1-13 Challenge Qs: p. 128 #1-9