13.3 – Why are electrical appliances so useful? Teaching time: 4 lessons Learning Objectives
Differentiated Learning Outcomes
Resources
Activities
Homework & Other Notes
Lesson 12 Students should learn that: a. energy is transferred when anything is done b. electrical energy can be transferred into a wide variety of other forms c. everyday equipment is designed to carry out specific energy transfers
All students should: understand that electrical appliances transfer electricity into other forms of energy Most students should:
A range of electrical devices. e.g. fan, radio, lamp, heater, hair drier, iron, tv, kettle, hotplate etc Milner textbooks Worksheet E8.1h Activity Sheet P1a 3.1
be able to identify the energy transformations associated with particular devices
Energy transfer circus: Students to identify energy changes in a variety of electrical devices and construct energy flow diagrams
H&S: Areas of risk: Many of the electrical devices will get very hot Possible homework: Worksheet E8.1h “Energy Transfers” Key vocabulary: conservation of energy
Exercises from textbook: Milner p.18-19
be able to give examples of equipment that can achieve particular energy transfers
Salesian School, Chertsey
Introduction: Activity Sheet P1a 3.1 Brainstorm “Why do we need electricity? What do we use it for?
Conservation of Energy. Consider problems caused by a lack of electricity for common devices.
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Summer 2008