Page 1 :
13. Electricity and Circuits, Multiple Choice Questions (MCQs). Tick (/) the correct options. Page No. 159, , 1. (a) 2. (d) 3. (c) 4. (b) 5. (d), Multiple Choice Questions (MCQs). Tick (/) the correct options. Page No. 162, 1. (b) 2. (c) 3. (c) 4. (c) 5. (a), SECTIONA, , CLASS RESPONSE, A. Oral questions., 1. Microwave oven, refrigerator, television, washing machine, computer/, geysers/juicer/grinder/air conditioners/electric fans/bulbs, 2. The materials that do not allow electric current to pass through them, are called insulators. Wood, glass, rubber and plastic are examples of, insulators., 3. If the filament is broken, the bulb is said to be fused and it no longer, glows as there is a break in the path of the electric current., , 4. We should wear rubber-soled shoes or chappals while operating the, electrical appliances because rubber is a good insulator and protect us, from electric shocks., , @) Teacher’s Resource Pack SCIENCE-6, , B. Science quiz., 1. Electrical cells, 2. An electric switch, 3. Yes, the current flows, if the key is closed., , 4. Graphite, , WORKSHEET, , A. Tick (/) the correct options., 1. (a) 2. (c) 3. (b) 4. (d) 5. (a), , B. State whether the following statements are true (T) or false (F)., 1. °«+7T 2. F 3. iT, , C._ Fillin the blanks., 1. Anelectriccell 2. current 3. two 4. afused 5. tungsten, , SECTION B, A. Multiple Choice Questions (MCQs) Scientific/Practical skills., 1. (c) 2. (b) 3. (b), , B. Very Short Answer Questions., , 1. Watch and calculator/transistors/remotes/toys/clocks/cameras/video, games, , 2. The path along which an electric current can flow is called an electric, circuit., , 3. Electric current flows from the positive terminal towards the negative, terminal of a cell., , C. Short Answer Questions., , 1. We should not operate electrical switches with wet hands because, water is a good conductor of electricity. If a person operates an electric, switch with wet hands, he/she can get electric shock because water, present on the wet hand can conduct some electricity from the switch, into his/her body., , 2. The circuit in which the path from one terminal of cell to another, terminal of cell is incomplete and electric current does not flow through, the circuit, as a result the bulb cannot glow, is called an incomplete or, open circuit., , 3. The materials that do not allow electric current to pass through them are, called insulators. Eg. Rubber, plastic, wood and glass are the examples, of insulators., , 4. (a) Monika stops Sahil because it is not safe to touch an electric switch, , with wet hands, he may get an electric shock., (b) From Monika we learn to care for others, , 5. (a) When the switch is in the ‘ON’ position, the circuit is complete or, , closed and current will flow through it., , Teacher’s Resource Pack SCIENCE-6 (3)