Starter – List the nine forms of energy Conservation of energy.

Slides:

Advertisements

Similar presentations

Unit 3 Energy and Work.

Advertisements

Conservation of Energy

The energy transferred in this picture is……. Learning objectives Describe the energy transfers in a range of devices. Identify where energy is wasted.

Chapter 3 Different Forms of Energy. What is energy? Energy: the ability to do work or effect change.

“ Energy can neither be created nor destroyed. It can only be changed from one form to another.” one “Energy cannot be created or destroyed. It can only.

Energy Transfer Sound energy Heat energy Chemical energyLight energy Gravitational potential energy Electrical energyKinetic energy Key wordPronunciationDefinition.

ENERGY Today’s Target -State the different types of energy and how it can be transferred from one form to another Steps to Success -State the names of.

Sec 3.3 Energy and Efficiency 2

Forms of Energy Energy types Energy transfers Wasted energy Joules.

Energy Transfer Diagrams Starter Activity (back of jotters): 1)What are the 10 types of energy? 2)Draw an energy flow diagram for an ipod.

Conservation of Energy.  How did you get to school today?  If you walked, did you get tired? Why do you think you got tired?  If you rode in a vehicle,

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.

The Law of Conservation of Energy Energy cannot be created or destroyed. E= m x C 2.

Energy Transformations Chapter 5. Energy Conversions =the transfer of energy from one form to another -energy is constantly being changed from one form.

Types of Energy and the law of conservation of energy p

Some might: Compare efficient and inefficient devices Some might: Compare efficient and inefficient devices ENERGY EFFICIENCY most should : Apply the conservation.

Lesson 3 Learning Objectives By the end of this lesson you will be able to; Define the term Energy Identify different forms of energy Describe examples.

Conservation of Energy What are all the different ways that $100 could be represented? Cash Checking account Travelers checks Change Gold and silver coins.

Unit 3 Lesson 2 Conservation of Energy

Chemical Energy Electrical Energy Potential Energy Kinetic Energy.

Objectives Recap the different types of energy and energy transformations. Outcomes C: Describe different types of energy. B: Explain energy transformations.

TYPES OF ENERGY J. The energy an object has because it is moving. Vibrating objects are sources for this energy. Forms of energy that are waiting to be.

Changes of Energy. Energy Transfers Energy can be transferred from one object to another. It is a transfer if the same form of energy is in both objects.

Sections 2 and 3 Energy Conversions and Conservation of Energy

ENERGY Ability to do work or cause change. Potential Stored energy. Has the ability to move. It might move, it might not move.

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 Energy and its Conservation

Energy Types Lesson 1. Energy Types  Write three sentences saying how you feel about your forces exam result I feel happy/ok/unhappy because... I felt.

Energy splat! Kinetic energy Gravitational potential energy Heat energy Chemical energy Light energy Electrical energy Watch this space!

Conservation of Energy. The Law of Conservation of Energy: energy cannot be created or destroyed only transferred or transformed. The total amount of.

ENERGY TRANSFER. LAW OF CONSERVATION OF ENERGY no energy is created of destroyed as it changes form example: the amount of heat and light energy given.

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.

Energy transfers. What is a useful energy transfer? Many household objects are designed to transfer energy from one form into another useful form. What.

Energy and Electricity

KS4 Energy transfers.

To understand conservation of energy

You have 1 minute to brainstorm

Conservation of Energy

KS4 Energy - Energy Transfers

Forms of energy.

Energy Transfer Diagrams

Conservation of Energy

Conservation of Energy

Baseline (Aiming for 4): Identify useful

KS4 Physics Energy Transfers.

Conservation of Energy & Efficiency

Natural Sciences Grade 7

Question 1 – What does energy efficiency measure?

ENERGY TRANSFORMATION

Conservation of Energy

Potential and Kinetic Energy

Potential and Kinetic Energy

Conservation of Energy

Energy Transformations

Presentation transcript:

Starter – List the nine forms of energy Conservation of energy

Learning Objectives To draw energy transfer chains To discuss how energy is conserved To calculate energy transfer values

Match each of these to the type of energy that it contains A mug of coffee A piece of coal A squashed spring A freewheeling bicycle Heat energy Chemical energy Potential energy Kinetic energy

Heat as waste Whenever energy is transferred from ONE FORM to another, only part of the INPUT energy is usefully transferred as OUTPUT energy in the form that is wanted. The remainder is transferred in some non-useful way and is therefore WASTED ENERGY. In most cases the wasted energy is usually heat and so most energy chains end with heat.

electrical light sound heat What are the main energy transfers for a television?

chemical kinetic sound heat What are the main energy transfers for a car engine?

electrical sound heat What are the main energy transfers for a radio?

Conservation of energy “Energy cannot be created or destroyed. It can only be changed from one form to another.” What happens to the total energy of a system before and after and energy transfer? It remains the same but exists in different forms

electrical light sound heat The amount of electrical energy which is inputted equals the total amount of energy outputted

The law of conservation of energy Energy can be transferred in more than one form at a time. The INPUT energy will always equal the total OUTPUT energy. “Energy cannot be created or destroyed. It can only be changed from one form to another.”

Electrical energy 100% Heat energy 20% Kinetic energy 22% (Wasted vibration of the drill) Kinetic energy 58% (Useful spinning of the drill bit) Energy Transfer Values