Energy Assignment 1. Why is energy not as tangible (concrete, certain, definite, plainly knowledgeable) to us as matter? (2 marks) Energy comes in many different forms that can be converted from one to another, where as matter has mass that can be measured. 2. List four forms of energy and an example for each form. To get the eight marks for this question, you need to list four forms of energy and four examples (one example for each form of energy). (8 marks) Mechanical energy muscle movement Thermal energy boiling water Electric energy lightning Chemical energy photosynthesis 3. What is the First Law of Thermodynamics? (2 marks) Energy cannot be destroyed. It can only be converted to other forms. Heat is a form of energy. 4. What is the Second Law of Thermodynamics? (1 mark) The entropy of the universe always increases. 5. All energy is eventually converted into what form of energy? (1 mark) Heat energy 6. Organisms are not closed systems because they use two things, which are: (2 marks) Energy and matter 7.
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- Summer '17