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6  Students should be able to explain energy conservation and analyse processes in terms of energy changes and dissipation

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PW 2: This LO will tie in primarily towards the end of the unit, expecting students to identify and calculate values for temperature and density.

NOS 3: The students will be taking part in the experimental process throughout the unit which will help promote key learning for planning and preparing equipment.

NOS 4: I will be hoping the students tie in their own abilities of observation throughout the unit when analyzing values calculated.

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Designed for a first year group incorporating all the mentioned Learning Outcomes

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First lesson of the Unit of Learning, serving as an introduction to PW6

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Key Skills that will be incorporated throughout LO.

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Key Skills that will be incorporated throughout LO.

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Unpacking LOs

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Provides an interesting background on energy types relating to potential difference

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Reflection on the developments of my thinking

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Sample of book delving into Scientific inquiry

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Using the Internet, a science teacher provided students access to hundreds of ultraviolet (UV) photographic images of the outer atmosphere of Earth. Upon examining the images, students discovered...

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Link to a peer reviewed paper giving a sample look into Inquiry based science teaching.

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ERIC - Dealing with the Ambiguities of Science Inquiry, Physics Teacher, 2016-Mar

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The current vision of science education in myriad educational contexts encourages students to learn through the process of science inquiry. Science inquiry has been used to promote conceptual learning and engage learners in an active process of meaning-making and investigation to understand the world around them.

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Some of the basics that thestudents can expect to cover

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Energy Conservation | National Geographic

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Conservation vs. Efficiency

Have you ever heard a long-distance runner talk about pacing himself during a race? When a conservative runner paces himself, he cuts back on his speed. This saves his energy, so he has enough left at the end of the race to get across the finish line. An efficient runner runs his race a little differently because he focuses on using proper running mechanics. Because he uses a good running technique, he does not waste energy and gets to the finish line faster.

Energy conservation and energy efficiency are not only important topics for long-distance runners, they are also important when discussing our reliance on carbon-based fossil fuels. By practicing both energy conservation and energy efficiency, we can reduce our dependence on fossil fuels and help the environment. In this lesson, you will learn the difference between conserving energy and being more energy-efficient and see examples of both.

Energy Conservation

Energy conservation is the act of saving energy by reducing a service. In other words, to conserve energy, you need to cut back on your usage. Examples include driving your car fewer miles per week, turning your thermostat down a degree or two in the wintertime and unplugging your computer or home appliances when they are not in use.

In all of these examples, you are reducing the amount of energy you use by doing without or making due with less fuel or electricity. While energy conservation might cut down on your comfort level and make things a bit less convenient, it can help reduce monthly heating and electricity bills and save money at the gas pump.

Energy Efficiency

Energy conservation is an effective way to lower overall energy consumption, and the same can be said for improved energy efficiency. However, the terms do not mean the same thing. Energy efficiency is defined as saving energy, but keeping the same level of service. For example, if you turn off the lights when you leave a room, you are practicing energy conservation. If you replace an inefficient incandescent light bulb with a more efficient compact fluorescent bulb, you are practicing energy efficiency.

You can keep these terms straight by thinking of energy conservation as 'cutting back' and energy efficiency as using energy more 'effectively.' Energy efficiency uses advances in science and technology to provide services and products that require the use of less energy. Examples include replacing older model appliances, such as a refrigerator or washing machine, with newer, energy-efficient models. Modern appliances use significantly less energy than older models, yet provide the same or better service.

Another example would be adding insulation to the attic and walls of a home. This added insulation allows the homeowner to reduce heating and cooling energy while maintaining a comfortable temperature within the home. Energy efficiency in the home can also be improved by replacing drafty windows with new, energy-efficient windows.

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energy conservation and energy efficiency: examples and differences - video & lesson transcript | study.com

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Energy Conservation and Energy Efficiency: Examples and Differences - Video & Lesson Transcript | Study.com

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Have you ever heard a long-distance runner talk about pacing himself during a race? When a conservative runner paces himself, he cuts back on his speed. This saves his energy, so he has enough left at the end of the race to get across the finish line.

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Informative clips on Energy conservation

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Informative clips on Energy conservation

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A secondary school revision resource for AQA GCSE Physics about energy transfers and efficiency, including types of energy, Sankey diagrams and how to calculate efficiency.

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Pupil friendly Energy info

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Energy Stored

Energy cannot be created or destroyed, but it can be saved in various forms. One way to store it is in the form of chemical energy in a battery. When connected in a circuit, energy stored in the battery is released to produce electricity.

If you look at a battery, it will have two ends: a positive terminal and a negative terminal. If you connect the two terminals with wire, a circuit is formed. Electrons will flow through the wire and a current of electricity is produced.

Energy can also be stored in many other ways. Batteries, gasoline, natural gas, food, water towers, a wound up alarm clock, a Thermos flask with hot water and even pooh are all stores of energy. They can be transferred into other kinds of energy.

Energy Transfer

In this diagram, we shall look at a bigger picture of how energy is transferred from one object to another, and from one state to the other. Take a close look and read the notes below:

A: Sun, source of solar energy. It transfers thermal (heat) and light energy to plants, humans and animals.

B: River, streams and waterfalls moving downstream are all a source or water energy (HydroPower). They are a store of kinetic energy by their movement downstream. Waterfalls also have gravitational energy.

C: Thermal and light energy from the sun is stored in plants as chemical and potential energy. When humans eat (plants) the stored energy is transferred to us. We use this energy to do work., the ball is at rest. It has potential energy but zero kinetic energy. Hitting the ball with the snooker cue means you are transferring kinetic energy from the cue to the ball.

D: Heat energy from the sun is transferred to water bodies. This warms the water up. The result is stored thermal energy. The warm water heats the air over it. Warm air rises, so the air is now set into motion. The moving air now has kinetic energy.

E: Kinetic energy in the moving air is a source of energy called Wind Energy. Wind can turn the blades and generate electrical energy, which we use in our homes.

F: Energy from the sun is captured as Solar energy by cells and panels on top of our roofs. Solar energy is then transferred into electrical energy, which we use to warm our homes and turn the TV and computers on.

Energy Dissipation

Take a look at this simple illustration of a moving ball on a snooker table...

At stage 1 stage 2 , it moves very quickly at first, and then gradually slows down at stage 3 . This means that the kinetic energy of the ball decreases and eventually to zero when the balls come to rest.

When the cue hits the ball at

With zero external force on the ball at stage 4 , the energy of the ball must be conserved. What happened to the kinetic energy? Kinetic energy has been
dissipated through friction and the ball is at rest. Potential energy is retained.

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Energy stored, Energy Transferred and Energy Dissipation

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Energy Stored Energy cannot be created or destroyed, but it can be saved in various forms. One way to store it is in the form of chemical energy in a battery. When connected in a circuit, energy stored in the battery is released to produce electricity.