Question 1 How woollen clothes keep us warm during cold winter days? Question 2 Why wearing more layers of clothing during winter keeps us warmer than wearing just one thick piece of clothing? Question 3 Explain how the water in a beaker gets heated when a burner is kept below it? Question 4 Explain how the air in a room gets heated when a room heater kept on a floor … [Read more...] about Transfer of Heat
insulators
Conductors and Insulators
Question 1 What are conductors? Give examples? Question 2 What are insulators? Give examples? Question 3 State few uses of conductors and insulators? Question 4 Why should we wear rubber soled shoes or rubber chappals while operating electrical appliances? Question 5 Why it is advisable to operate electric switches with dry hands? Question 6 Why do electricians … [Read more...] about Conductors and Insulators