9th Class Physics Chapter 3 MCQs with Answers

AdminMarch 17, 2024

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Welcome to the 9th Class Physics Chapter 3 MCQs Practice and Quiz Tests. We are presenting you with top MCQ questions from the 9th Class Physics Chapter 3 Dynamics.

You can find all the 9th Class Physics Chapter 3 MCQs online tests on our website. These online tests are great for learning and as well as for scoring maximum marks in your Matriculation Exams. We are making these Class 9 Physics MCQs online tests for those who want full marks in their exams.

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9th Class Physics Chapter 3 Online Quiz

By presenting 3 options to choose from, 9th Class Chapter 3 Quiz which cover a wide range of topics and levels of difficulty, making them adaptable to various learning objectives and preferences. You will have to read all the given answers of 9th Class Questions and Answers and click over the correct answer.

Test Name: 9th Class Chapter 3 Quiz Practice
Type: Quiz Test
Total Questions: 40
Total Marks: 40
Time: 40 minutes

Note: Answer of the questions will change randomly each time you start the test. Practice each quiz test at least 3 times if you want to secure high marks. Once you are finished, click the View Results button. If any answer looks wrong to you in Quizzes. simply comment below this post, so that we can update the answer in the quiz section.

9th Class Physics Chapter 3: Dynamics

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1 / 40

In the absence of air resistance, objects of different masses fall to the ground with the same _____.

Velocity

Acceleration

Force

2 / 40

Which of the following represents the relationship between force, mass, and acceleration?

F = ms

F = mv

F = ma

3 / 40

According to Newton's first law of motion, an object will remain at rest or in uniform motion in a straight line unless acted upon by a _____.

Frictional force

Net external force

Tension force

4 / 40

The force that opposes the motion of an object as it moves through a fluid is called _____.

Drag

Thrust

Lift

5 / 40

According to Newton's first law of motion, an object will remain at rest or in uniform motion in a straight line unless acted upon by a _____.

Frictional force

Net external force

Tension force

6 / 40

The force required to maintain circular motion is called _____.

Centripetal force

Tension force

Centrifugal force

7 / 40

Which of the following factors affects the gravitational force between two objects?

Color

Shape

Mass

8 / 40

The force of gravity between two objects ____ as the mass of one of the objects increases.

Increases

Decreases

Remains constant

9 / 40

The net force acting on an object is equal to the rate of change of its _____.

Speed

Velocity

Momentum

10 / 40

The gravitational force between two objects ____ as the distance between them increases.

Increases

Decreases

Remains constant

11 / 40

The force required to maintain circular motion is called _____.

Tension force

Centripetal force

Centrifugal force

12 / 40

The tendency of an object to remain at rest or in motion at a constant velocity is called _____.

Inertia

Friction

Momentum

13 / 40

The weight of an object is the force exerted on it due to _____.

Friction

Buoyancy

Gravity

14 / 40

The force of gravity on Earth is approximately _____ m/s².

9.8

5.6

12.3

15 / 40

The force of gravity between two objects ____ as the mass of one of the objects increases.

Increases

Decreases

Remains constant

16 / 40

Which of the following is a unit of force?

Joule

Watt

Newton

17 / 40

Which of the following is a non-contact force?

Magnetic force

Friction

Normal force

18 / 40

In the absence of air resistance, objects of different masses fall to the ground with the same _____.

Force

Acceleration

Velocity

19 / 40

The acceleration experienced by a freely falling object is approximately _____.

9.8 m/s²

2 m/s²

5 m/s²

20 / 40

The acceleration due to gravity is _____ near the surface of the Earth.

Constant

Zero

Variable

21 / 40

The weight of an object is the force exerted on it due to _____.

Friction

Buoyancy

Gravity

22 / 40

The acceleration due to gravity is _____ near the surface of the Earth.

Constant

Variable

Zero

23 / 40

The force of gravity on Earth is approximately _____ m/s².

5.6

12.3

9.8

24 / 40

The work done by a force is defined as the product of the force and the _____ moved in the direction of the force.

Time

Speed

Distance

25 / 40

An object is in mechanical equilibrium when the _______ acting on it sum up to zero.

Velocities

Forces

Masses

26 / 40

The force required to lift an object against gravity is equal to its _____.

Weight

Volume

Mass

27 / 40

Which of the following equations represents Newton's second law of motion?

F = mv

F = ma

F = ms

28 / 40

Which of the following statements about momentum is true?

Momentum decreases with mass

Momentum is a vector quantity

Momentum depends on speed

29 / 40

Which of the following statements about momentum is true?

Momentum depends on temperature

Momentum decreases with velocity

Momentum is conserved in isolated systems

30 / 40

The SI unit of force is the _____.

Newton

Joule

Watt

31 / 40

An object is in motion when its position changes relative to a _____ frame of reference.

Reference

Static

Inertial

32 / 40

Which of the following factors affects the magnitude of the frictional force between two surfaces?

Color of surfaces

Nature of surfaces

Distance between surfaces

33 / 40

Which of the following statements about inertia is true?

Inertia depends on temperature

Inertia depends on speed

An object with more mass has more inertia

34 / 40

Which of the following statements about friction is true?

Friction increases with velocity

Friction always opposes motion

Friction depends on the color of the object

35 / 40

Which of the following statements about friction is true?

Friction depends on the color of the object

Friction increases with velocity

Friction always opposes motion

36 / 40

If an object is moving with constant speed in a circular path, its acceleration is directed towards the ____ of the circle.

Tangent

Center

Perimeter

37 / 40

Which of the following is not a type of friction?

Kinetic friction

Static friction

Elastic friction

38 / 40

The force required to lift an object against gravity is called _____.

Normal force

Tension

Weight

39 / 40

The force that allows a car to navigate a curve safely is called _____.

Tension force

Centripetal force

Centrifugal force

40 / 40

The force required to maintain an object at a constant velocity in the presence of opposing force is called _____.

Tension force

Equilibrium force

Frictional force

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AdminMarch 17, 2024

0 20 1 minute read