Have you ever observed that how may electrical appliances are there in your
bedroom? Write the names of all of them. How they are connected to the power
supply? Also draw a possible circuits diagram or block diagram to show their
electrical connectivity
(6 marks)
Take a beaker (Jar or jug) with some water and put some drops of red or blue
ink in it. Take a tender twig of any flowery plant with leaves and flowers, preferably
white flowers, and put it in the beaker for 6 to 8 hours. What do you observe? For
further examination cut across its stem and look for the presence of colored water.
Explain your observations.
(6 marks)
5. Collect at least six objects of different materials. Check them for their friction
by sliding an object on their surfaces. Now arrange them according to their friction
(high to low). How their friction can be reduced ? Suggest some methods according
to the materials.
(6 marks)
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Answer:
tubelight bulb fan tv and etc
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