Class 9 Science Chapter 8 Force and Laws of Motion MCQ

NCERT MCQ solutions for Class 9 Science Chapter 8 Force and Laws of Motion help students understand Newton’s three laws through objective and subjective questions. These solutions cover key topics like inertia, momentum, action-reaction forces and applications in real life. Practicing Force and Laws of Motion Class 9 MCQ Questions enhances problem-solving skills and prepares students for exams. With detailed explanations, these solutions ensure a strong grasp of physics fundamentals.
Class 9 Science Chapter 8 NCERT Solutions
Class 9 Multiple Choice Questions
Class 9 Science MCQ

Revising Force and Motion in Class 9 Science MCQs

Force and motion are fundamental concepts in physics, explaining how objects interact in the physical world. In Class 9 Science Chapter 8 MCQs with Answers, students learn about Newton’s three laws of motion, which form the basis of mechanics. The Force and Laws of Motion Class 9 MCQ Questions often test students on the definition and applications of force. For instance, force can change an object’s state of motion, its speed or its direction. Class 9 Physics Motion Chapter Multiple Choice Questions focus on the relationship between force and acceleration. The Motion Class 9 MCQ Questions with Answers explore how uniform and non-uniform motion behave under different forces. These concepts provide an essential foundation for understanding real-world physics, from vehicle dynamics to planetary motion.

Q1. An object of mass 2 kg is sliding with a constant velocity of 4 m s-¹ on a frictionless horizontal table. The force required to keep the object moving with the same velocity is

[A]. O N

[B]. 2 N

[C]. 8 N

[D]. 32 N

Q2. Newton’s second law of motion helps to determine

[A]. Magnitude of force

[B]. Definition of velocity

[C]. Definition of force

[D]. Magnitude of velocity

Q3. A goalkeeper in a game of football pulls his hands backwards after holding the ball shot at the goal. This enables the goalkeeper to

[A]. Exert larger force on the ball.

[B]. Increase the rate of change of momentum.

[C]. Reduce the force exerted by the ball on hands.

[D]. Decrease the momentum.

Newton’s Laws Based Class 9 Science Chapter 8 MCQs

Newton’s three laws of motion describe the behavior of objects under the influence of external forces. The MCQs on Force and Laws of Motion for Class 9 commonly ask about the significance of inertia, which is the resistance of an object to changes in its motion. NCERT Exercise Solutions Class 9 Science Chapter 8 Motion MCQ Questions include problems on calculating force using Newton’s Second Law, which states that force is the product of mass and acceleration (F=ma). Force and Laws of Motion Class 9 Science MCQs often emphasize action-reaction pairs, where every action has an equal and opposite reaction. The Multiple Choice Questions on Force and Laws of Motion also examine the effects of balanced and unbalanced forces. These laws are essential in designing vehicles, aircraft and even predicting planetary movements.

Q4. Newton’s first law of motion gives the concept of

[A]. Energy

[B]. Momentum

[C]. Inertia

[D]. Work

Q5. A passenger in a moving train tosses a coin which falls behind him. It means that motion of the train is

[A]. Accelerated

[B]. Uniform

[C]. Along circular track

[D]. Retarded

9th Science Chapter 8 MCQ on Friction in Motion

Friction is a force that resists the relative motion between two surfaces in contact. Many Class 9 Science Motion Chapter MCQ Tests assess the role of friction in stopping and moving objects. The Class 9 Science Chapter 8 Motion MCQ Test Online explores static, kinetic and rolling friction, which are important in mechanics and engineering. MCQ Questions for Class 9 Science Chapter 9 often challenge students to apply concepts of friction in real-life situations, such as walking, driving and industrial machinery. The Force and Laws of Motion Class 9 MCQ Quiz includes questions on methods to reduce or increase friction using lubricants or textured surfaces. Understanding friction helps in designing efficient machines and improving safety in transportation and sports.

Q6. An object of mass 5 kg is sliding with a constant velocity of 4 m s¯¹ on a frictionless horizontal surface. The force required to keep the object moving with the same velocity is

[A]. 0 N

[B]. 4 N

[C]. 20 N

[D]. 80 N

Q7. Passengers standing in a bus are thrown outward when the bus takes a sudden turn. This happens because of

[A]. Inertia of rest

[B]. Momentum

[C]. Directional inertia

[D]. Inertia of motion

9th Science MCQ on Practical Applications of Motion

The principles of motion extend beyond theoretical physics to real-world applications. Class 9 Physics Motion Chapter MCQ Test questions often relate to how velocity and acceleration are used in transportation and aerospace technology. NCERT Books Class 9 Science Chapter 8 Motion Multiple Choice Questions highlight the importance of measuring displacement and speed to understand mechanical systems. In engineering, MCQs on Force and Laws of Motion Chapter 9 focus on calculating forces acting on bridges, buildings and vehicles. Motion Class 9 Science MCQ Questions assess students’ understanding of how momentum and impulse work in collision scenarios. These scientific principles enable engineers to develop safer vehicles, high-speed trains and effective braking systems in automobiles.

Q8. Newton’s second law of motion gives a measure of

[A]. Acceleration

[B]. Force

[C]. Momentum

[D]. Energy

Q9. Which of the following statement is not correct for an object moving along a straight path in an accelerated motion?

[A]. Its speed keeps changing

[B]. It always goes away from the earth

[C]. Its velocity keeps changing

[D]. A force is always acting on it

Class 9 Science Chapter 8 MCQs on Motion and Force

Science relies on precise measurements and calculations to analyze motion and force. Force and Laws of Motion Class 9 Science MCQ Questions require students to apply formulas such as F=ma and momentum conservation principles. NCERT Exercises Class 9 Science Chapter 8 Motion MCQ Quiz covers kinematics equations used to determine motion parameters. MCQ Questions for Class 9 Science Force and Laws of Motion include experimental setups where forces acting on an object are measured under controlled conditions. CBSE Class 9 Physics Chapter 9 MCQ Test Online involves problem-solving scenarios that test Topics clarity and calculation accuracy. The Force and Laws of Motion Class 9 MCQ Practice Test reinforces the ability to analyze real-world physical situations using mathematical models. These assessments help students develop analytical skills useful for future studies in physics and engineering.

Q10. The inertia of an object tends to cause the object

[A]. To increase its speed

[B]. To decelerate due to friction

[C]. To resist any change in its state of motion

[D]. To decrease its speed

What are Newton’s Laws of Motion and why are they important in Class 9 Science Chapter 8?

Newton’s Laws of Motion, covered in Class 9 Science Chapter 8, explain how forces affect the motion of objects. The first law states that an object remains at rest or moves uniformly unless acted upon by an external force. The second law quantifies this relationship, stating that force equals mass times acceleration (F=ma). The third law highlights that every action has an equal and opposite reaction. These principles are useful in Force and Laws of Motion Class 9 MCQ Questions, helping students understand practical applications like vehicle motion, sports physics and industrial machinery. Mastering these laws enables better problem-solving in physics and engineering.

How does friction affect motion and what are some ways to control it in Class 9 Science Chapter 8?

Friction, discussed in Class 9 Science Chapter 8, is a force that resists motion between two surfaces in contact. It plays a dual role: while it enables activities like walking and gripping objects, it also causes energy loss through heat and wear. Class 9 Science Motion Chapter MCQ Test often includes questions on types of friction—static, kinetic and rolling—each influencing motion differently. Engineers use lubricants to reduce friction in machines, while rough surfaces enhance grip in tires and shoes. NCERT Class 9 Science Textbook Chapter 8 Motion MCQ Test Online tests students’ understanding of friction’s applications, making it a key concept in mechanics and daily life.

How are force and motion applied in real-life engineering and scientific studies as per Class 9 Science Chapter 8?

Class 9 Science Chapter 8 explains how force and motion impact real-world engineering and technological advancements. Automotive engineers use Newton’s laws to design vehicles with efficient acceleration and braking systems. In MCQs on Force and Laws of Motion Chapter 9, students explore applications such as bridge construction, where engineers calculate forces acting on structures to ensure stability. Motion Class 9 Science MCQ Questions also include concepts like impulse and momentum, which are critical in robotics, aerospace engineering and sports science. Understanding these principles helps in designing safer transportation systems, effective sports strategies and innovative mechanical solutions.