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Download Name Date Period ______ ENERGY UNIT STUDY GUIDE Concept
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Name _______________________________________ Date __________________ Period _______ ENERGY UNIT STUDY GUIDE Concept or Term Energy Categories of energy Kinetic Potential Forms of kinetic energy Mechanical Electrical Sound Radiant Thermal Forms of potential energy Stored mechanical Gravitational PE Nuclear energy Chemical energy Transformation and Transfers Energy transformation First Law of Thermodynamics Energy transfer Conduction Convection Radiation √ Definition or Explanation Energy is defined as the ability to do work Energy of a moving object Stored energy in an object, often due to its position Energy of an object due to its movement and position Energy of electrons moving in one direction in a wire Energy of sound waves moving through a substance like air or water Electromagnetic radiation (like light waves, microwaves, radio waves, x-rays, etc.) that move in wave forms Internal energy of a substance caused by its atoms and molecules moving and vibrating within the substance Energy stored in an object from a push or a pull (like pressing in a spring or stretching a rubber band) The energy an object or substance has because of its vertical position Energy stored in the nucleus of an atom, released if the atom is broken apart Energy stored in the bonds between atoms, released if the bonds are broken by a chemical reaction The change of energy from one form to another Energy can be transformed from one form to another, but it cannot be created or destroyed Movement of energy from one place to another Movement of heat from one SOLID to another, from warmer to colder Transfer of heat from one place to another in LIQUIDS or GASES, from warmer areas to colder areas Heat transfer from fire or the sun in the form of wave energy being emitted (sent out) Review Questions – Answer the following questions in complete sentences below. 1. Give an example of each kind of energy in the chart: Kind of energy Example Kind of energy Radiant Gravitational PE Sound Electrical Stored mechanical Mechanical nuclear chemical Example 2. What kind of energy transformation is involved in photosynthesis? 3. Give an example of potential energy from everyday life and explain why it is potential, and one example of kinetic and why it is kinetic. 4. Explain why all forms of food represent chemical energy. What form of energy does it get transformed to in the body? 5. Describe how electrical energy can be transformed into sound energy. 6. Why is stretching a rubber band an example of stored mechanical energy? 7. Is a battery an example of electrical energy or chemical energy? Explain!