This page is dedicated for Class 9th Force and Laws of Motion MCQ Quiz. Understand the fundamentals of force and motion with our free “Force and Laws of Motion” MCQ quiz for Class 9. Learn about Newton’s laws and their applications. Ideal for exam prep.

9th Force and Laws of Motion MCQ

Time: 10 Minutes for 10 Question.

9th Science: Force and Laws of Motion

1 / 10

1. Why does a sharp knife cut better than a blunt one?

Because it is heavier

Because of greater pressure due to smaller area

Because of its length

Because of friction

2 / 10

2. What is the acceleration of an object in free fall on Earth?

Always increasing

Equal to g

Zero

Depends on shape

3 / 10

3. What does Archimedes’ Principle state?

Fluids have no mass

Pressure is the same everywhere

An object floats when its mass equals the fluid's mass

Body submerged in fluid experiences upward force equal to weight of displaced fluid

4 / 10

4. What is the relationship between weight and mass?

Weight is equal to mass

Weight = mass/g

Weight = mass × g

Weight = mass + g

5 / 10

5. Why does a ship made of iron float in water?

Due to low temperature

Due to low pressure

Due to shape and buoyancy

Because iron is light

6 / 10

6. What is the value of acceleration due to gravity (g) on Earth?

6.7 × 10⁻¹¹ m/s²

9.8 m/s²

3.84 × 10⁵ m/s²

100 m/s²

7 / 10

7. What does the universal law of gravitation state?

Force is independent of mass

Force is directly proportional to distance

Force is inversely proportional to product of masses

Force is proportional to product of masses and inversely proportional to square of distance

8 / 10

8. What is the unit of pressure?

Newton

Pascal

Joule

Watt

9 / 10

9. What is the SI unit of gravitational constant (G)?

N m² kg⁻²

N/kg

m/s²

kg m/s

10 / 10

10. What is the weight of a 10 kg object on Earth?

98 N

100 N

9.8 N

10 N

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Chapter wise 9th Science MCQ

About 9th Force and Laws of Motion MCQ

The “Force and Laws of Motion” MCQ quiz for Class 9 helps students grasp the principles of force and motion. This chapter introduces the concept of force, which is a push or pull that can change the state of motion of an object. It covers different types of forces, including contact and non-contact forces.

The quiz includes questions on Newton’s three laws of motion, which form the foundation of classical mechanics. The first law, also known as the law of inertia, states that an object will remain at rest or in uniform motion unless acted upon by an external force. The second law quantifies the relationship between force, mass, and acceleration (F = ma). The third law states that for every action, there is an equal and opposite reaction.

You will also learn about the concept of momentum, which is the product of mass and velocity, and the principle of conservation of momentum. The quiz covers practical applications of these laws, such as the working of rockets, the motion of vehicles, and collisions.

By taking this MCQ quiz, you will reinforce your understanding of the principles of force and motion and their applications in everyday life. This quiz is designed to challenge your comprehension and application of the material, ensuring you have a solid grasp of Newton’s laws of motion.

This quiz is an excellent resource for self-assessment, helping you to identify areas where you need more practice and ensuring you are well-prepared for your exams. The comprehensive review provided by the quiz will enhance your understanding and retention of the material, making it an invaluable tool for exam preparation.

Keywords: Class 9 science MCQ quiz, free MCQ quiz, Force and Laws of Motion, Newton’s laws, inertia, momentum, conservation of momentum, contact forces, non-contact forces, exam preparation, key concepts.

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