12 solutions available
Question 1Which of the following cannot be charged easily by friction?A plastic scaleA copper rodAn inflated balloonA woollen cloth.
Question 2When a glass rod is rubbed with a piece of silk cloth, the rodand the cloth both acquire a positive charge.becomes positively charged while...
Question 3Write T against true and F against false in the following statements.(a) Like charges attract each other. (T/F)(b) A charged glass rod...
Question 4Sometimes, a crackling sound is heard while taking off a sweater during winter. Explain.
Question 5Explain why a charged body loses its charge if we touch it with our hand.
Question 6Name the scale on which the destructive energy of an earthquake is measured. An earthquake measures 3 on this scale. Would it be recorded...
Question 7Suggest three measures to protect ourselves from lightning.
Question 8Explain why a charged balloon is repelled by another charged balloon, whereas an uncharged balloon is attracted by another charged balloon.
Question 9Describe with the help of a diagram an instrument which can be used to detect a charged body.
Question 10List three states in India where earthquakes are more likely to strike.
Question 11Suppose you are outside your home and an earthquake strikes. What precautions would you take to protect yourself?
Question 12The weather department has predicted that a thunderstorm is likely to occur on a certain day. Suppose you have to go out on that day....