NCERT Solutions Class 8 Science Chapter 11 Force and Pressure – Here are all the NCERT solutions for Class 8 Science Chapter 11. This solution contains questions, answers, images, explanations of the complete chapter 11 titled Force and Pressure From of Science taught in class 8. If you are a student of class 8 who is using NCERT Textbook to study Science, then you must come across chapter 11 Force and Pressure . After you have studied lesson, you must be looking for answers of its questions. Here you can get complete NCERT Solutions for Class 8 Science Chapter 11 Force and Pressure in one place.
NCERT Solutions Class 8 Science Chapter 11 FORCE AND PRESSURE
Here on AglaSem Schools, you can access to NCERT Book Solutions in free pdf for Science for Class 8 so that you can refer them as and when required. The NCERT Solutions to the questions after every unit of NCERT textbooks aimed at helping students solving difficult questions.
For a better understanding of this chapter, you should also see summary of Chapter 11 FORCE AND PRESSURE , Science, Class 8.
| Class | 8 |
| Subject | Science |
| Book | Science |
| Chapter Number | 11 |
| Chapter Name |
FORCE AND PRESSURE |
NCERT Solutions Class 8 Science chapter 11 FORCE AND PRESSURE
Class 8, Science chapter 11, FORCE AND PRESSURE solutions are given below in PDF format. You can view them online or download PDF file for future use.
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Question & Answer
Q.1: Give two examples each of situations in which you push or pull to change the state of motion of objects.?
Ans : Two examples of push force are as follows: (i) A heavy box at rest is pushed to move it from one room to another. This changes the state of motion of the box. (ii) A player pushes a football using his foot. This changes the state of motion of the ball. Two examples of pull force are as follows: (i) Rope is pulled to draw water from a well. This changes the state of motion of the water bucket. (ii) A drawer is pulled to open it. This changes the state of motion of the drawer.
Q.2: Give two examples of situations in which applied force causes a change in the shape of an object.
Ans : Two examples of forces that cause a change in the shape of an object are as follows: (i) Squeezing of a plastic bottle changes the shape of the bottle. (ii) Deformation of clay by pressing it between the hands.
Q.3: Fill in the blanks in the following statements.
(a) To draw water from a well we have to __________ at the rope.
(b) A charged body __________ an uncharged body towards it.
(c) To move a loaded trolley we have to __________ it.
(d) The north pole of a magnet __________the north pole of another magnet.
Ans : (a) To draw water from a well we have to pull at the rope. (b) A charged body attracts an uncharged body towards it. (c) To move a loaded trolley we have to either push or pull it. (d) The north pole of a magnet repels the north pole of another magnet.
Q.4: An archer stretches her bow 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 stretch the bow, the archer applies a force that causes a change in its __________.
(b) The force applied by the archer to stretch the bow is an example of __________ force.
(c) The type of force responsible for a change in the state of motion of the arrow is an example of a __________ force.
(d) While the arrow moves towards its target, the forces acting on it are due to __________ and that due to __________ of air.
Ans : (a) To stretch the bow, the archer applies a force that causes a change in its shape . (b) The force applied by the archer to stretch the bow is an example of muscular force. (c) The type of force responsible for a change in the state of motion of the arrow is an example of a contact force. (d) While the arrow moves towards its target, the forces acting on it are due to gravity and that due to friction of air.
Q.5: In the following situations identify the agent exerting the 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.
(b) Taking out paste from a toothpaste tube.
(c) A load suspended from a spring while its other end is on a hook fixed to a wall.
(d) An athlete making a high jump to clear the bar at a certain height.
Ans : (a) In squeezing a piece of lemon, we make use of muscular force to extract its juice. This muscular force acts on the lemon. As a result, the shape of the lemon gets changed. (b) We use our muscular force to take out paste from a toothpaste tube. The muscular force acts on the toothpaste tube. As a result, the shape of the tube gets changed. (c) Here, the suspended load exerts a force on the spring and pushes the spring downwards. As a result, the spring gets stretched. Hence, its shape gets changed. (d) An athlete pushes the ground with his feet. His feet exert a muscular force on the ground. This allows him to jump over the bar. As a result, his state of motion gets changed.
NCERT / CBSE Book for Class 8 Science
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- Click here for NCERT Book for Class 8 Science
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