Class 8 Science Chapter 6 Force and Pressure Solutions | ASSEB Assam | English Medium

Class 8 Science Chapter 6 – Force and Pressure – All Textual Solutions | ASSEB Assam (English Medium)

Class 8 Science Chapter 6 – Force and Pressure Complete Textual Questions and Answers (ASSEB / SEBA Assam – English Medium)

Chapter 6 of the Class 8 Science curriculum, ‘Force and Pressure’, is a fundamental physics chapter that introduces students to the core mechanics of how objects interact. These complete textual question-answer solutions (Class 8 Science Chapter 6 Textual Solutions) have been meticulously prepared based on the latest guidelines of the new ASSEB (Assam State School Education Board) syllabus and the National Education Policy (NEP). This comprehensive compilation includes textbook-based Very Short Answers (VSA), Short Questions, Long Answers, detailed explanations, and key scientific definitions. Ospin Academy provides these solutions in a simple, accurate, and completely exam-oriented format.

The chapter ‘Force and Pressure’ provides an in-depth understanding of forces as pushes or pulls that can change the state of motion or the shape of an object. It explores the categorization of forces into contact forces (muscular force, friction) and non-contact forces (magnetic force, electrostatic force, gravitational force). Furthermore, students learn about pressure as the force acting on a unit area of a surface, how liquids and gases exert pressure on the walls of their containers, and the fascinating concept of atmospheric pressure. It is essential for students to thoroughly grasp these core concepts. Our textual solutions not only cover all the standard textbook exercises but also include important additional exam-oriented questions to ensure robust preparation.

What you will learn and get from these textual solutions:

• Clear explanations of how forces arise from the interaction between objects and how they affect motion and shape.
• Accurate, point-wise answers for 1-mark objective questions (VSA) and 2-3 mark short textual questions regarding different types of forces.
• Standard and easy-to-understand explanations for descriptive questions involving pressure calculations and real-life applications (e.g., why school bags have wide straps).
• Complete coverage of end-of-chapter exercises, fill-in-the-blanks, matching questions, and definitions of pressure and atmospheric pressure.
• Extra important questions aligned with the new syllabus structure alongside standard MCQ solutions.

Exclusive features of Ospin Academy’s solutions:

• Fully textbook-based answers formulated strictly according to the latest ASSEB new syllabus guidelines.
• 100% accurate, high-quality notes written in simple English language for effortless memorization and understanding.
• Concise summaries and targeted answers specifically designed for quick revision before examinations.
• A curated selection of highly probable extra questions to give students a competitive edge.

Committed to the academic excellence of students, Ospin Academy offers these high-quality textual solutions. Start your preparation today to master the concepts of Science and achieve top scores in your upcoming examinations.

Class 8 Science

Chapter – 6                             Ospin Academy

Force and Pressure

TEXTBOOK EXERCISES

Q. 1. Give two examples each of situations in which you push or pull to change the state of motion of objects.

Ans. (i) We push the door to open it.

(ii) We pull the desk to change its position.

Q. 2. Give two examples of situations in which applied force causes a change in the shape of an object.

Ans. When we apply force on clay with our fingers, its shape gets changed, when we press balloon with our hands, its shape get changed.

Q.3. Fill in the blanks in the following statements:

(a) To draw water from a well we have to _________ at the rope.

Ans. pull.

(b) A charged body _________ an uncharged body towards it.

Ans. attracts.

(c) To move a loaded trolley we have to _________ it.

Ans. push it.

(d) The north pole of a magnet __________ the north pole of another magnet.

Ans. repels.

Q. 4. An archer stretches her how while taking aim at the target. She then releases the arrow, which begins to move towards the target. Based on this information fill up the gaps in the following statements using the following terms:

muscular, contact, non-contact, gravity, friction, shape, attraction

(a) To strecth the bow, the archer applies a force that causes a change in its __________.

Ans. shape.

(b) The force applied by the archer to stretch the bow is an example of _________ force.

Ans. muscular.

(c) The type of force responsible for a change in the state of motion of the arrow is an example of a _________ force.

Ans. contact.

(d) While the arrow moves towards its target, the forces acting on it are due to _________ and that due to _________ of air.

Ans. gravity and friction.

Q. 5. In the following situations identify the agent exerting a force and the object on which it acts. State the effect of the force in each case.

(a) Squeezing a piece of lemon between the fingers to extract its juice.

Ans. Agent are fingers, object is lemon, effect of force can be observable in form of lemon juice being expelled by squeezing.

(b) Taking out paste from a toothpaste tube.

Ans. Agent is hand of the person squeezing the tube, object is toothpaste tube and effect of the force can be observed as the paste coming out of the tube.

(c) A load suspended from a spring while its bother end is on a hook fixed to a wall.

Ans. Agent is the load suspended, object is the spring and effect can be seen in the form of elongation of spring on suspension of load.

Q. 6. A blacksmith hammers a hot piece of iron while making a tool. How does the force due to hammering affect the piece of iron?

Ans. The force due to hammering causes the change in the shape of the iron and iron can be moulded in the shape of the required tool.

Q. 7. An inflated balloon was pressed against a wall after it has been rubbed with a piece of synthetic cloth. It was found that the balloon sticks to the wall. What force might be responsible for the attraction between the balloon and the wall?

Ans. Electrostatic force.

Q. 8. Name the forces acting on a plastic bucket containing water held above ground level in your hand. Discuss why the forces acting on the bucket do not bring a change in its state of motion.

Ans. Forces acting on the plastic bucket:

(i) Force of gravity acting downward.

(ii) Muscular force of arms acting upward.

The two forces do not bring any change in state of motion of bucket because both forces are equal and act in the opposite directions and thus cancel each other’s effect.

Q. 9. A rocket has been fired upwards to launch a satellite in its orbit. Name the two forces acting on the rocket immediately after I leaving the l launching pad.

Ans. When a rocket leaves launching pad, following forces act on it.

(i) Gravitational force of earth (downward).

(ii) Propelling force of gases emitted by combustion of fuels (upward).

Q. 10. When we press the bulb of a dropper with its nozzle kept in water, air in the dropper is seen to escape in the form of bubbles. Once we release the pressure on the bulb, water gets filled in the dropper. The rise of water in the dropper is due to:

(a) pressure of water.

(b) gravity of the earth.

(c) shape of rubber bulb.

(d) atmospheric pressure.

Ans. (d) atmospheric pressure.