Electrical energy changes 0 Overview Using this Resource Connecting to the Curriculum Marking Student Responses Working with Students Further Resources This task is about energy and energy transformation. Question a) Which one of the following will change electrical energy into mechanical energy? A light bulb A neon tube A battery powered motor A dry-cell battery Question b) When an electric hair dryer is used, electrical energy is being changed into three main types of energy. These are ... heat, sound, and light energy. light, kinetic, and magnetic energy. kinetic, heat, and sound energy. magnetic, sound, and heat energy. Question c) When a washing machine is used, electrical energy is being changed into three main types of energy. These are ... heat, potential, and light energy. kinetic, heat, and sound energy. kinetic, sound, and potential energy. heat, wave, and sound energy. Question d) When an electric kettle is used, the main energy change that occurs is the transformation of electrical energy into ... heat energy. mechanical energy. magnetic energy. wave energy. Question 1Change answer e) When the kettle boils, other energy changes occur. e) When the kettle boils, other energy changes occur. Name another form that the electrical energy is transformed into. energy Task administration: This task can be completed with pencil and paper or online. Level: 5 Curriculum info: Science, Knowledge, Physical World Keywords: physics concepts, energy, energy transformation Description of task: Students answer questions about energy transformation. Answers/responses: Y10 (06/1998) a) C - A battery powered motor very easy b) C - kinetic, heat, and sound energy. easy c) B - kinetic, heat, and sound energy. difficult d) A - heat energy. very easy e) Sound energy or kinetic energy. difficult Diagnostic and formative information: Common Error c) 43% of students selected option C - kinetic, sound, and potential energy. 22% of students selected option D - heat, wave, and sound energy. Changing energy Stored energy Yoyos Steam engines Energy changes Flying planes Energy transformations Wasted energy
