Energy and our Universe - Pearson Schools

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38 BTEC’s own resources 2.1 Understanding types of energy In this section: Sound energy is used to test metals in the aerospace and automotive industries. Cracks, or weak areas, refl ect the energy. Grading tip P1 P1 Part of meeting the criteria is to list types of energy. When doing your assignment, make sure you give all the different types of energy given in the table. Types of energy Energy is vital to everyday life and we use it to do all sorts of things. The table below shows some examples of different types of energy. Type of energy What is it? Example Potential (e.g. elastic, gravitational, chemical) Stored energy that has the potential of doing work Kinetic Movement energy Light (electromagnetic) Bright objects give out light energy Sound Things that vibrate give off sound energy Thermal (heat) Energy that is transferred from a hot region to a cold region Electrical Flow of charge in an electric circuit
Energy transformations We need energy to do all sorts of things. Running, reading and even sleeping require energy. Energy can be transformed (changed) from one form to another. Anything that takes in energy must also give out energy. Here are some examples. A girl running gets her energy from the food she eats. The energy is then transformed to movement (kinetic energy), sound and heat energy. The light bulb that lights your room gets its energy from electricity. The energy is then transformed to light and heat energy. Remember: don’t touch a lit bulb – it will burn. Activity A Write down three ways in which you have experienced energy being transformed today. Using energy at home and in the workplace We use many different appliances at home and at work that convert energy from one form into others. Activity B Assessment activity 2.1 You are a food scientist working for a supermarket, looking at energy in food. 1 Find out how much energy is stored in a can of drink (any type). This value will be marked clearly on the label. P1 2 What form of energy is in this drink? P1 3 Investigate what happens to this drink as it goes into your body. P1 Grading tip Remember, everything requires energy – even sleep! This means that you should be able to find enough types of energy to cover the content for P1 . Unit 2 Energy and our Universe For each thing pictured on the right, write down the type of energy that is going into it and the types of energy that it is giving out. (Hint: remember that most things give out more than one form of energy.) Energy transformations are all around us. P1 PLTS When you carry out your investigation you will be learning to enquire independently as well as developing your self-management skills. 39
Page 1 and 2: Credit value: 5 2 Energy and our Un
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