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1. Fill in the blanks. (a) Friction opposes the motion between the surfaces in contact with each other. (b) Friction depends on the nature of surfaces. (c) Friction produces heat. (d) Sprinkling of powder on the carrom board reduces friction. (e) Sliding friction is less than the static friction. 2. Four children were asked to … Read more
List two differences between the capitalist and socialist ideas of private property. Capitalist Idea: Private property is owned by individuals or businesses who are concerned with personal gain. They control the means of production, and profits are kept by the owners. Socialist Idea: Private property is controlled by society as a whole, meaning that the … Read more
________________________________________ Activity 1.1 : Question (as per the steps in the textbook): 1. Take a 100 mL beaker. 2. Fill half the beaker with water and mark the level of water. 3. Dissolve some salt/sugar with the help of a glass rod. 4. Observe any change in water level. 5. What do you think has … Read more
1) What is meant by a substance? Answer: A substance is a form of matter that has a uniform and definite composition. It can be either an element or a compound, where all the constituent particles have the same chemical nature. 2) List the points of differences between homogeneous and heterogeneous mixtures. • Homogeneous Mixtures: … Read more
Activity 8.1: Understanding Inertia Objective: To demonstrate the concept of inertia and how it affects the motion of objects. Materials Needed: Carom coins, striker, table. Procedure: 1. Make a pile of similar carom coins on a table. 2. Attempt a sharp horizontal hit at the bottom of the pile using another carom coin or the … Read more
1) Understanding Electric Circuits and Ohm’s Law Background: An electric circuit comprises various components like resistors, batteries, and measuring instruments connected through conductive wires. The flow of electric charge through this setup defines the electric current, measured in amperes (A). Ohm’s Law states that the current through a conductor between two points is directly proportional to … Read more
1) Answer the following questions: (i) Why are people considered a resource? Answer: People are considered a resource because it is through their capabilities, knowledge, and skills that natural resources are transformed into valuable assets. Healthy, educated, and motivated individuals contribute significantly to the development of a society and economy, making human resources the most … Read more
1) Why were people dissatisfied with British rule in the 1870s and 1880s? Answer: People were dissatisfied due to several reasons including oppressive laws like the Arms Act (1878) and the Vernacular Press Act (1878), which curtailed basic freedoms and censored the press. The introduction of the Ilbert Bill (1883) and its subsequent withdrawal due … Read more
1) In what ways is a hawker different from a shop owner? Answer: Hawker – A hawker is a mobile vendor who does not have a fixed place of business. They typically sell their goods from movable stalls or directly from their baskets, moving from place to place or setting up in different locations on … Read more
──────────────────────────────────────────────────────── IN-TEXT QUESTIONS ──────────────────────────────────────────────────────── Question: “Do magnets stick to objects made of certain materials only?” Answer: • Yes. Magnets only stick to materials that have iron, nickel, or cobalt in them (these are called magnetic materials). Objects made of wood, plastic, or glass do not stick to magnets. Question: “Was your prediction correct for all … Read more