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Chapter 2: Microorganisms : Friend and Foe
Chapter 3: Synthetic Fibres and Plastics
Chapter 4: Materials : Metals and Non-Metals
Chapter 5: Coal and Petroleum
Chapter 6: Combustion and Flame
Chapter 7: Conservation of Plants and Animals
Chapter 8: Cell—Structure and Functions
Chapter 9: Reproduction in Animals
Chapter 10: Reaching the Age of Adolescence
Chapter 11: Force
Chapter 12: Friction
Chapter 13: Sound
Chapter 14: Chemical Effects of Electric Current
Chapter 15: Some Natural Phenomena
Chapter 16: Light
Chapter 17: Stars and Solar System
Chapter 18: Pollution of Air and Water
Chapter 11: Force
NCERT solutions for Science Exemplar Class 8 Chapter 11 Force Multiple Choice Questions [Pages 61 - 63]
In figure, two boys A and B are shown applying force on a block. If the block moves towards the right, which one of the following statements is correct?
Magnitude of force applied by A is greater than that of B
Magnitude of force applied, by A is smaller than that of B
Net force on the block is towards A
Magnitude of force applied by A is equal to that of B
In the circuit shown in figure, when the circuit is completed, the hammer strikes the gong. Which of the following force is responsible for the movement of hammer?
Gravitational force alone
Electrostatic force alone
Magnetic force alone
Frictional force alone
During dry weather, while combing hair, sometimes we experience hair flying apart. The force responsible for this is
force of gravity
force of friction
Figure shows a container filled with water. Which of the following statements is correct about pressure of water?
Pressure at A > Pressure at B > Pressure at C
Pressure at A = Pressure at B = Pressure at C
Pressure at A < Pressure at B > Pressure at C
Pressure at A < Pressure at B < Pressure at C
Two objects repel each other. This repulsion could be due to the
frictional force only
electrostatic force only
magnetic force only
either a magnetic or an electrostatic force
Which one of the following forces is a contact force?
Force of gravity
Force of friction
A water tank has four taps fixed at points A,B,C and D as shown in figure. The water will flow out at the same pressure from taps at
B and C
A and B
C and D
A and C
A brick is kept in three different ways on a table as shown in figure. The pressure exerted by the brick on the table will be
maximum in position A
maximum in position C
maximum in position B
equal in all cases
NCERT solutions for Science Exemplar Class 8 Chapter 11 Force Very Short Answer Questions [Pages 63 - 64]
A ball of dough Is rolled into a flat chapatti. Name the force exerted to change the shape of the dough.
Where do we apply a force while walking?
A girl is pushing a box towards east direction. In which direction should her friend push the box so that it moves faster in the same direction?
In the circuit shown in figure, when the key is closed, the compass needle placed in the match box deflects. Name the force which cases this deflection.
During dry weather, clothes made of synthetic fibre often stick to the skin. Which type of force is responsible for this phenomenon?
While sieving grains, small pieces fall down. Which force pulls them down?
Does the force of gravity act on dust particles?
A gas filled balloon moves up. Is the upward force acting on it larger or smaller than the force of gravity?
Does the force of gravitation exist between two astronauts in space?
NCERT solutions for Science Exemplar Class 8 Chapter 11 Force Short Answer Questions [Pages 64 - 66]
A chapatti maker is a machine which converts balls of dough into chapattis. What effect of force comes into play in this process?
Figure shows a man with a parachute. Name the force which is responsible for his downward motion. Will he come down with the same speed without the parachute?
Two persons are applying forces on two opposite sides of a moving cart. The cart still moves with the same speed in the same direction. What do you infer about the magnitudes and direction of the forces applied?
Two thermocol balls held close to each other but move away from each other, when they are released. Name the force which might be responsible for this phenomenon. Explain.
Fruits detached from a tree fall down due to the force of gravity. We. know, that a force arises due to the interaction between two objects. Name the objects interacting in this case.
A man is pushing a cart down a slope. Suddenly the cart starts moving faster and he wants to sloyy it down. What should he do?
Figure shows a car sticking to an electromagnet. Name the forces acting on the car. Which one of them is larger?
NCERT solutions for Science Exemplar Class 8 Chapter 11 Force Long Answer Questions [Pages 66 - 67]
An archer shoots an arrow in the air horizontally. However, after moving some distance, the arrow falls to the ground. Name the initial force that sets the arrow in motion. Explain why the arrow ultimately falls down.
It is difficult to cut cloth using a pair of scissors with blunt blades. Explain.
Two rods of the same weight and equal length have different thickness. They are held vertically on the surface of sand as shown in figure. Which one of them will sink more? Why?
Two women are of the same weight. One wears sandals with pointed heels while the other wears sandals with flat soles. Which one would feel more comfortable while walking on a sandy beach? Give reasons for your answer.
It is much easier to burst an inflated balloon with a needle than by a finger. Explain.
Observe the vessels A, B, C and D as shown in figure carefully.
|300 mL||50 mL||500 mL||60 mL|
Chapter 11: Force
NCERT solutions for Science Exemplar Class 8 chapter 11 - Force
NCERT solutions for Science Exemplar Class 8 chapter 11 (Force) include all questions with solution and detail explanation. This will clear students doubts about any question and improve application skills while preparing for board exams. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. Shaalaa.com has the CBSE Science Exemplar Class 8 solutions in a manner that help students grasp basic concepts better and faster.
Further, we at Shaalaa.com provide such solutions so that students can prepare for written exams. NCERT textbook solutions can be a core help for self-study and acts as a perfect self-help guidance for students.
Concepts covered in Science Exemplar Class 8 chapter 11 Force are Force, Factors Affecting Liquid Pressure, Force - Push or Pull, Forces Are Due to an Interaction, Effect of Force, Types of Force: Contact Force, Types of Force: Non-Contact Force, Thrust and Pressure, Liquid Pressure, Exploring Forces, A Force Can Change the State of Motion, Force Can Change the Shape of an Object, Atmospheric Pressure.
Using NCERT Class 8 solutions Force exercise by students are an easy way to prepare for the exams, as they involve solutions arranged chapter-wise also page wise. The questions involved in NCERT Solutions are important questions that can be asked in the final exam. Maximum students of CBSE Class 8 prefer NCERT Textbook Solutions to score more in exam.
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