ENERGY Energy. What is energy? Energy is the ability to move something It is measured in Joules The symbol for Joules is J.

Slides:

Advertisements

Similar presentations

Advertisements

Energy Conversion and Conservation. Conversions Between Forms of Energy  Energy Conversion: Is a change from one form of energy to another.  Most forms.

Where does it all come from?. Originally: The sun. Provides almost 1,000,000 Joules of energy per square metre of Earth every day. Our primary energy.

1 10 pt 15 pt 20 pt 25 pt 5 pt 10 pt 15 pt 20 pt 25 pt 5 pt 10 pt 15 pt 20 pt 25 pt 5 pt 10 pt 15 pt 20 pt 25 pt 5 pt 10 pt 15 pt 20 pt 25 pt 5 pt Energy.

NONRENEWABLE AND RENEWABLE RESOURCES

NONRENEWABLE AND RENEWABLE RESOURCES. HMMMM.... Energy resources can be classified a renewable or nonrenewable What do you think nonrenewable resources.

Sources of Energy Renewable and Non- renewable. What is Energy? Energy is the ability to do work.

ENERGY SOURCES AND TYPES

Energy Energy – is defined as the ability to do work; the ability to cause change; all energy can be transferred Two main types of Energy: Kinetic Energy:

Energy and Transformation of Energy

Energy resources.

Energy Conservation and Transfer. Energy Energy is the ability to do work ( it makes things happen) Work – applying a force to move an object (transferring.

Emitters of radiation White/silver surfaces emit less thermal radiation. Polar bears are white so they emit less thermal radiation. Keywords: Conduction,

Energy Resources.

Conservation of Energy

Nonrenewable Resources

Chapter 37 Work, Power & Energy The word energy comes from the Greek word energeia.

Energy The ability to do work or cause changes in matter.

 THE ABILITY TO DO WORK OR TO CHANGE MATTER  MOVEMENT  SOUND  HEAT  LIGHT.

P1a Energy and Energy Resources 1 Heat Transfer Conduction Convection Radiation 2 Using energy Forms of energy Conservation Efficiency 3 Electrical energy.

Key Points: -Potential Energy is more formally called the Energy of Position or Stored Energy. Any object that is still or resting has Potential Energy.

Energy Notes Foldables/notes.

Finish the following sentence: “Energy is the ability to ____.”

Energy Sources.

Learning outcomes:- To be able to identify the main energy resources available To be able to identify renewable and non-renewable resources To be able.

JC Physics A. Roche What is Energy? Energy is the ability to do work or move something. Energy is measured in Joules (J).

ENERGY RESOURCES Advantages and disadvantages of energy resources.

Alternative Energy Take a look at how electricity is made

Energy and Energy Resources Carin Miranda Smyrna Middle School Fall 2009.

Energy Resources Energy chains Renewable energy Non-renewable energy

NOTE: This presentation was not made for public use. Please do not use this presentation without my permission and the permission of each of the authors.

Energy Chapter 38 What is Energy? Energy is the ability to do work. The unit of energy is the Joule(J).

Thermal Radiation Thermal radiation is energy transfer by electromagnetic waves All objects emit thermal radiation The hotter an object is, the more thermal.

Renewable & Non- renewable energy. Fossil Fuels 1.Name the main types of fossil fuels. 2.Explain briefly how they were made. 3.Why is there a problem.

Energy Looking Back, Looking Ahead

Chapter 8 Energy Sources and the Environment

Emitters of radiation White/silver surfaces emit less thermal radiation. Polar bears are white so they emit less thermal radiation. Keywords: Conduction,

What are 2 types of energy resources?  Renewable  Non-Renewable.

1 2 Energy is something that is needed to make things happen. Energy can make things move or change. Energy is not a substance or an object that you.

ENERGY. Where Does the Energy Go? Friction is a force that oppose motion between two surfaces that are touching. For a roller coaster car to move, energy.

ENERGY. Energy – The ability to do work How is energy involved in the following picture?

Energy Around Us Chapter What is Energy? Energy is the. We use energy to. Without energy,. The SI unit for energy is ( ). ability to do work.

Work, Power, Energy – Learning Outcomes  Define work, energy and power, and give their units.  Give the relationship between work and power.  Solve.

Where does our Energy come from?

Chapter 13 Energy and Energy Resources Section 1 What is Energy.

ENERGY The ability to do work. Renewable Renewable - sources that can be replenished in a short period of time. Solar, Wind, Hydropower, Geothermal,

The Nature of Energy. What is Energy The ability to do work or cause a change is called energy. When an organism does work some of its energy is transferred.

Thermal Radiation Thermal radiation is energy transfer by electromagnetic waves All objects emit thermal radiation The hotter an object is, the more thermal.

Jeopardy MORE ENERGY N R G ENERGY ENERGIA Q $100 Q $100 Q $100 Q $100

Intro to Energy 8th Grade Science.

Jeopardy Hosted by Ms. Schubert.

KS3 Physics 7I Energy Resources.

Energy Geography of Canada.

ENERGY RESOURCES Learning Objectives We will be learning about:

Forms of Energy.

Energy JC Physics.

Energy Energy is the ability to do work or to move something

The ability to do work is?

Energy and Energy Resources

Objective (SWBAT) Describe sources of energy that humans use.

Presentation transcript:

eNERGY Energy

What is energy?

Energy is the ability to move something It is measured in Joules The symbol for Joules is J

Heat energy – when heat causes things to move Heat causes the liquid inside a thermometer to move. Heat causes the liquid particles to move around quicker!

Light energy – when light causes things to move! Light makes plants to grow! The vanes inside Crookes radiometer move because of light

Sound energy – when sound makes things move! Sound makes our ear drums vibrate! It makes glasses smash! It can even cause avalanches!

Magnetic energy – when magnets make things move A magnet can move thing towards it - like nails! A crane moves cars using magnets!

Kinetic energy - the energy that moving things have! Wind causes sails to move Aeroplanes can move people and luggage A rock fall can move cars, people etc

Potential energy – the energy something has because of it’s shape or position A spring A wind up clock A jack in the box The water in a dam A sling shot

Chemical energy – stored in materials in their chemical bonds Chemical energy is stored in food – animals get this energy when they break down food in their bodies!

Chemical energy – stored in materials in their chemical bonds A battery stores chemical energy Fuels like gas, turf and coal all store chemical energy that is released when they are burned!

Electrical energy - comes from moving charges

Nuclear energy – the energy that comes from nuclear fission and nuclear fusion Nuclear fusion in the sun

Check your learning.. What is energy? What unit is energy measured in?

Can you think of examples of each type of energy? There are many different types of energy: Heat light sound kinetic electrical chemical nuclear Different types of energy

Which type of energy?

Newton's Law of conservation of energy: Energy cannot be created or destroyed But it can be changed from one form to another. Chemical energy in food is converted to heat energy and kinetic energy by our bodies. Energy transfer What other energy transfers can you think of? Potential energy in a ball is converted to kinetic energy when it falls to the ground.

bunsen burner portable torch microphone battery radio television car chemical to heat and light sound to electrical Chemical to electrical to sound and heat electrical to sound and light and heat chemical to kinetic and sound and heat In all these transfers the energy is not lost, it is conserved. Energy cannot be destroyed or created. What energy changes takes place in each device? What is the energy transfer?

What energy conversions happen?

Fossils fuels are non renewable sources of energy Non-renewable sources of energy will eventually run out and take a very long time to be made again.

Fossil fuels

Coal formation

Oil and gas formation

Ireland has a energy problem.. 90% of electricity we use comes from burning fossil fuels… The disadvantages of fossil fuels: 1)They are non renewable (and running out!) 2) When fossil fuels are burnt they release carbon dioxide into the air which causes global warming!

Renewable sources of energy Biomass energy Wave and tidal energy Wind energy Geothermal energy Solar energy Renewable energy resources will not run out because they can easily be made

Renewable or nonrenewable?

Nuclear energy is made from uranium (at the moment) which will eventually run out!

Advantages/ Disadvantages of Nuclear energy Advantages It releases great amounts of energy. No greenhouse gases are released by nuclear power plants. Disadvantages Releases radioactive waste which can be dangerous to the environment if not disposed of properly. If a nuclear accident happened it would cause a lot of environmental damage.

Group work Make lists of the advantages and disadvantages of each energy source Evaluate the other sources of energy we could use in Ireland to make electricity

Fossil fuels Electricity WIND WAVES SOLAR PANELS PLANTS ANIMALS PLASTICSGAS PETROL TURBINES THE SUN

The sun is our primary source of energy! The energy that comes from the sun is changed into lots of different types of energy that we can use!

Conserving energy Insulate with fibreglass Double glaze and use thick curtains Use draught excluders Use thick carpets Fit walls with air cavities Energy Conservation (Saving energy)

Anagrams

Multiple-choice quiz