CONSERVATION OF ENERGY

Slides:

Advertisements

Similar presentations

Chapter 5 Work, Energy and Power

Advertisements

Energy Transformation Phy. Sci. 1. Law of Conservation of Matter The Law of Conservation of Matter states that matter can change in form as a result of.

Conservation of Energy

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

Energy Lesson Goal: Explain the different forms of energy that are present while on a roller coaster and what those forms of energy turn into. At the.

Conservation of Energy Chapter 5 Section 3. What is Conservation? When something is conserved, it is said that it remains constant. The same holds true.

Unit 3 Section 3 Notes Conservation of Energy. Energy Transformations Energy is most noticeable as it transforms from one type to another. What are some.

Unit 2 Energy. Energy Transformations Law of Conservation of Energy Energy cannot be created or destroyed only transformed to another type of Energy.

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.

Simple Machines. Example A frictionless 30 o ramp is used to lift a 500kg crate up a vertical distance of 1.5m. If the ramp is used is 4.0m long, a) What.

Work and Power Notes What Work and Power are not… Work is not where you go to earn a check! Power is not how strong you are!

Energy Chap 4 Intro & Conservation. The Nature of Energy 4.1.

CONSERVATION OF ENERGY Energy can neither be created nor destroyed; it can only be transformed from one form to another.

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.

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.

PHYSICS – Energy. LEARNING OBJECTIVES Energy Core Identify changes in kinetic, gravitational potential, chemical, elastic (strain), nuclear and.

The Nature of Energy Chapter 5.1. What is Energy? Energy: the ability to do work or cause change.

Conservation of Energy Chapter 13.4 Notes. Energy Transformations Energy readily changes from one form to another For example, think about when you ride.

Dissipative Forces. Reality? In reality, non-conservative forces cannot be ignored: friction really does act Dissipative force is one that reduces the.

Work and Energy. What is WORK? Work is equal to the amount of force it takes for an object to move a distance. Formula: Work = Force X Distance W = F.

Unit 5: Work, Power and Energy. Work Work is done when a force causes a change in motion of an object, or work is a force that is applied to an object.

May 2, A ball can experience 30 J of work if it falls off the counter. How massive is the ball if it is at a height of 2 m? 2.How much PE does the.

Energy Lesson Goal: Become familiar with various forms of energy.

Unit 5 Relationships among forms of energy

8th Grade Exploring Energy

Energy Conversion and Conservation

Chapter 9.9 Efficiency The percentage of how much mechanical energy remains after some of it is transferred (dissipated) to non-useful energy.

Chapter 9:1 What is Energy?

What type of energy is being used in a pulley system?

KS4 Energy transfers.

Energy Conversion and Conservation

E Energy Energy Calculating energy Example: Calculating landing speed.

KS4 Energy - Energy Transfers

Wednesday September 13, 2017 YOU NEED YOUR NOTEBOOK.

E Energy Energy Calculating energy Example: Calculating landing speed.

Work and Energy PS Chapter 4.

Energy Conversions Standard: Explain energy transformations in terms of the law of conservation of energy.

November 23, 2015 Work and Power Quiz moved to Dec. 1

Warm-Up: How much power is required to lift a 50N box 3 m in 5 s?

Notes 10.2: Power and efficiency

Energy Transformations

Energy transformations and the conservation of energy!

April 30, 2010 Bring up your lab from yesterday!

Bell work Jason held a basketball over his head and then threw it toward the floor. The ball hit the floor and bounced back up into the air. Eventually,

Energy The ability to do work.

Energy Conversions and Conservation

Introduction to Agriculture AAEC – Paradise Valley Spring 2015

Warm Up What type of flowers have 3 or multiples of 3s petals and has parallel veins? What type of flowers have 4/5 or multiples of 4/5 petals and have.

Energy Conversion and Conservation

Ability to do work or cause change

Chapter 4 Energy.

States, Forms, and Conservation of Energy

Energy and Energy Resources

CHAPTER 15: ENERGY!.

Today we are going to learn about Kinetic and Potential energy.

Energy Energy - the ability to do work.

Energy: the ability to do work or to cause a change

Mr. Villa Physics Energy.

The Nature of Energy.

Conservation of Energy

The Nature of Energy Chapter 5.1

Energy: Forms and Changes

Energy Quiz review.

Presentation transcript:

CONSERVATION OF ENERGY Energy can neither be created nor destroyed; it can only be transformed from one form to another.

If energy is not created or destroyed (only transformed), then where does the energy to… Walk down the hall… Ride a roller coaster’s route… Drive down the road… Come from???

WORK done by Hiker Chemical ENERGY http://www.woodsfamilyclimbs.com/albums/album16/980800_030_Approaching_the_Diamond_of_Longs_Peak.jpg http://www.vikingrange.com/recipes/recipe_images/banana_pancakes_large.jpg WORK done by Hiker Chemical ENERGY

Chemical Potential ENERGY WORK done on Steam Turbine Cherokee Coal Fired Power Plant Chemical Potential ENERGY http://www.industcards.com/cherokee-co.jpg WORK done on Steam Turbine http://members.shaw.ca/onefishy/engine_room/steam%20turbine%20rotor.02.jpg

Gravitational Potential ENERGY Hoover Dam, NV Gravitational Potential ENERGY Las Vegas, NV http://www.bierstall.de/images/Hoover%20Dam%202.jpg WORK done by lights http://www.ap.org/westwire/Vegas.jpg

1 Liter of water has a mass of 1kg 1 Liter of water has a mass of 1kg. If the dam allows 20,000 gal/sec (1gal = 3.78L) to flow through, what is the max amount of electrical power this dam’s turbines can put off? 200 m

Chemical Potential ENERGY Gas http://us1.webpublications.com.au/static/images/articles/i10/1066_10mg.jpg Chemical Potential ENERGY WORK done by Car

If gasoline has 1.32 x 108Joule/gal of potential energy… and the engine is 20% efficient, how much gas will it burn for the 1600kg car to climb a 100 m tall hill? 100 ft

If energy is not created or destroyed (only transformed), then where does it go when… A car with KE stops? A person eats food, climbs a mountain, and stops? A light bulb transforms electrical energy to light/heat then...?

How much KE?... In what direction? How much PE? How much KE?... In what direction?

Why doesn’t it hit your face? The total energy of a system must be conserved… But energy can be converted to: sound, light, and eventually ALWAYS heat … and essentially is “lost”

"miniLab" Place cup at known distance from ramp (you choose)… using what you already know plus the new energy/work stuff, calculate the height on the ramp you need to release a ball from to land it in the cup! If you succeed you are done… if not, determine the amount of energy lost to friction, air resistance… even sound.