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In-Text Questions and Answers Question 1: A force of 7 N acts on an object. The displacement is 8 m in the direction of the force. What is the work done in this case? Answer: Work done is calculated by multiplying the force by the displacement in the direction of the force. So, Work done … Read more
1. You can observe this process of local myths and legends receiving wider acceptance even today. Can you find some examples around you? Answer: Yes, even today, local myths and stories become popular in wider areas. For example, the story of Lord Jagannath from Odisha is now celebrated all over India during the Rath Yatra … Read more
In-text Questions and Answers: 1. What is the name of the period between childhood and adulthood? Answer: The period between childhood and adulthood is called adolescence. 2. Why do some body parts seem out of proportion during adolescence? Answer: During adolescence, different parts of the body grow at different rates. This means your arms or … Read more
In-Text Questions and Answers Question: How do you come to know that a ‘period’ is over in your school? Answer: We know that a period is over when we hear the school bell ring. Question: How is sound produced? How does it travel from one place to another? How do we hear sound? Why are … Read more
In-text Questions and Answers Question: Find out how many new states have been created in the last 10 years. Is each of these states considered its own region? Answer: In the last 10 years, one new state, Telangana, was created in 2014. It became separate from Andhra Pradesh. Each state is usually considered a region … Read more
1. Are there more images of men than women? Answer: Yes, there are more images of men than women. 2. In what kinds of jobs were there more images of men than women? Answer: There were more images of men in jobs like farmers, factory workers, scientists, and pilots. 3. Have all the nurses been … Read more
1. Explain at least three different reasons why groups may be marginalised. Answer: Groups may be marginalised for several reasons: Different Language or Customs: If a group speaks a different language or follows customs that are not like the majority, they may be excluded. Religion: Belonging to a different religious group from the majority can … Read more
Question 1: In a reaction, 5.3 g of sodium carbonate reacted with 6 g of acetic acid. The products were 2.2 g of carbon dioxide, 0.9 g of water, and 8.2 g of sodium acetate. Show that these observations are in agreement with the law of conservation of mass. Answer: Total mass of reactants: Mass … Read more
In-Text Questions and Answers What are canal rays? Answer: Canal rays are streams of positively charged particles discovered by E. Goldstein. They are also known as anode rays. These rays are produced in a gas discharge tube and move in a direction opposite to that of electrons. If an atom contains one electron and one … Read more
1) Can you think of the ways in which social customs and practices were discussed in the pre-printing age when books, newspapers, and pamphlets were not readily available? Answer: Before printing was common, people shared ideas through oral communication. They held meetings, gatherings, and discussions in places like temples, marketplaces, and homes. Stories, songs, and … Read more