Write T against true and F against false in the following statements. (a) Like charges attract each other. (T/F) (b) A charged glass rod attracts a charged plastic straw. (T/F) (c) Lightning conductors cannot protect a building from lightning. (T/F) (d) Earthquakes can be predicted in advance. (T/F)
ScienceClass 8CBSEAnswered 27 Mar 2026
Answer
Soln:
- a) False – Unlike charges attract each other, while the like charges repel each other.
- b) True – A charged plastic straw has a negative charge on its surface, while the glass rod has a positive charge on its surface. Unlike charges attract each other, so they both attract each other.
- c) False – When lightning occurs, the atmospheric charges are transferred to the earth directly by a lightning conductor. Therefore, the building is protected from lightning.
- d) False – Even though the earthquake’s causes are known, there are no instruments that are invented to detect them in advance. Therefore, earthquakes cannot be predicted in advance.
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