7. Tuki does not have a night lamp in his room. He covered the bulb in night with a towel to get dim light. Is it
right way? Discuss with your parents and explain on a separate sheet.
8. Last Sunday, Priyanka decided to go outside with her family for the dinner in some particular restaurant.
Then, she thought to go through her own car. So, while moving she increased the speed of the car from
36 km/h to 54 km/h. All of sudden, a rickshaw came in front of her car but due to applying of brakes at the
right time, both of them got safe from meeting with an accident.
(a) Calculate the increase in the speed of the car in the terms of km/h.
(b) Mention a positive action performed by Priyanka here.
9. Match Column I with Column II
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Answer:, the step taken by the tuki was not right. The electric bulb wastes electrical energy in the form of heat. As she covered the bulb of her room with a towel in the night to get dim light, is a total wastage of energy.
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