Classical Mechanics MCQs

1. Which law of motion states that every object persists in its state of rest or uniform motion unless acted upon by an external force?

A. Newton’s First Law
B. Newton’s Second Law
C. Newton’s Third Law
D. Law of Inertia

Answer: A. Newton’s First Law

2. What quantity is defined as the rate of change of momentum of an object?

A. Force
B. Acceleration
C. Impulse
D. Inertia

Answer: A. Force

3. Which of the following is not a unit of force in the SI system?

A. Newton
B. Dyne
C. Pascal
D. Joule

Answer: D. Joule

4. Newton’s Second Law of Motion can be mathematically expressed as:

A. $F=ma$
B. $F=m/a$
C. $F=m\cdot a$
D. $F=m-a$

Answer: A. $F=ma$

5. The momentum of an object is given by:

A. $p=mv$
B. $p=ma$
C. $p=F$
D. p=12mv2p = \frac{1}{2} mv^2p=21​mv2

Answer: A. $p=mv$

6. Which law of motion states that for every action, there is an equal and opposite reaction?

A. Newton’s First Law
B. Newton’s Second Law
C. Newton’s Third Law
D. Law of Gravitation

Answer: C. Newton’s Third Law

7. The gravitational force between two masses is proportional to the product of their masses and inversely proportional to the square of the distance between them. This statement describes:

A. Newton’s First Law
B. Newton’s Second Law
C. Newton’s Third Law
D. Law of Universal Gravitation

Answer: D. Law of Universal Gravitation

8. Which of the following is not a conservative force?

A. Gravitational force
B. Frictional force
C. Electrostatic force
D. Spring force

Answer: B. Frictional force

9. Work done by a force is defined as:

A. Force times velocity
B. Force times displacement in the direction of the force
C. Force divided by displacement
D. Force squared divided by displacement

Answer: B. Force times displacement in the direction of the force

10. The unit of work in the SI system is:

A. Joule
B. Watt
C. Newton
D. Pascal

Answer: A. Joule

11. Which of the following is a scalar quantity?

A. Force
B. Velocity
C. Acceleration
D. Momentum

Answer: B. Velocity

12. Which principle states that the total mechanical energy (kinetic plus potential) of an isolated system remains constant if only conservative forces act on it?

A. Law of Conservation of Energy
B. Principle of Relativity
C. Principle of Equivalence
D. Law of Inertia

Answer: A. Law of Conservation of Energy

13. The kinetic energy of an object is given by:

A. KE=12mv2KE = \frac{1}{2} mv^2KE=21​mv2
B. $KE=F\cdot d$
C. $KE=mv$
D. $KE=m\cdot a$

Answer: A. KE=12mv2KE = \frac{1}{2} mv^2KE=21​mv2

14. The potential energy of an object in a gravitational field near the Earth’s surface is:

A. $PE=mgh$
B. PE=12mv2PE = \frac{1}{2} mv^2PE=21​mv2
C. PE=12kx2PE = \frac{1}{2} kx^2PE=21​kx2
D. $PE=F\cdot d$

Answer: A. $PE=mgh$

15. Which of the following statements is true regarding projectile motion?

A. Horizontal and vertical components of motion are independent of each other.
B. The horizontal component of velocity changes due to gravitational force.
C. The projectile moves with constant horizontal acceleration.
D. None of the above

Answer: A. Horizontal and vertical components of motion are independent of each other.

16. Which of Newton’s laws of motion deals with the concept of inertia?

A. First law
B. Second law
C. Third law
D. None of the above

Answer: A. First law

17. Which of the following is a correct statement about circular motion?

A. Centripetal force acts radially outward from the center of the circle.
B. Centripetal acceleration is directed towards the center of the circle.
C. Centrifugal force is a real force acting outward in circular motion.
D. None of the above

Answer: B. Centripetal acceleration is directed towards the center of the circle.

18. Which of the following quantities is conserved in elastic collisions?

A. Momentum
B. Kinetic energy
C. Potential energy
D. None of the above

Answer: A. Momentum

19. A body floats on the surface of a liquid. Which principle explains this phenomenon?

A. Archimedes’ Principle
B. Bernoulli’s Principle
C. Pascal’s Principle
D. None of the above

Answer: A. Archimedes’ Principle

20. Which of the following correctly describes the concept of torque?

A. Torque is a measure of the rotational motion of an object.
B. Torque is the product of force and velocity.
C. Torque is a measure of an object’s translational motion.
D. None of the above

Answer: A. Torque is a measure of the rotational motion of an object.

21. Which of the following statements about Newton’s Third Law of Motion is correct?

A. It states that for every action there is a reaction of equal magnitude but opposite direction.
B. It states that an object will remain at rest or in uniform motion unless acted upon by an external force.
C. It states that force is equal to mass times acceleration.
D. None of the above

Answer: A. It states that for every action there is a reaction of equal magnitude but opposite direction.

22. Which of the following is NOT a unit of force in the SI system?

A. Newton
B. Joule
C. Dyne
D. None of the above

Answer: B. Joule

23. Which of the following is an example of a non-conservative force?

A. Gravity
B. Spring force
C. Friction
D. None of the above

Answer: C. Friction

24. Which of the following equations represents Newton’s Second Law of Motion?

A. $F=ma$
B. F=mv2rF = \frac{mv^2}{r}F=rmv2​
C. F=mvtF = \frac{mv}{t}F=tmv​
D. None of the above

Answer: A. $F=ma$

25. Which principle states that energy cannot be created or destroyed, only transformed from one form to another?

A. Law of Gravitation
B. Law of Conservation of Energy
C. Law of Inertia
D. None of the above

Answer: B. Law of Conservation of Energy

26. Which of the following is a scalar quantity?

A. Velocity
B. Force
C. Acceleration
D. Momentum

Answer: A. Velocity

27. Which of the following is a measure of an object’s resistance to change its state of motion?

A. Acceleration
B. Momentum
C. Inertia
D. Force

Answer: C. Inertia

28. Which of the following is NOT a type of equilibrium in mechanics?

A. Stable equilibrium
B. Unstable equilibrium
C. Neutral equilibrium
D. Dynamic equilibrium

Answer: D. Dynamic equilibrium

29. Which of the following statements correctly describes the concept of impulse?

A. Impulse is the change in momentum of an object over time.
B. Impulse is the force acting on an object over time.
C. Impulse is the work done by a force on an object.
D. None of the above

Answer: A. Impulse is the change in momentum of an object over time.

30. Which of the following statements is true about circular motion?

A. Centripetal force acts outward from the center of the circle.
B. Centripetal acceleration is directed away from the center of the circle.
C. Centrifugal force is a real force acting outward in circular motion.
D. None of the above

Answer: C. Centrifugal force is a real force acting outward in circular motion.

31. Which law of motion is mathematically represented as F=dpdtF = \frac{dp}{dt}F=dtdp​, where $p$ is momentum and $t$ is time?

A. Newton’s First Law
B. Newton’s Second Law
C. Newton’s Third Law
D. None of the above

Answer: B. Newton’s Second Law

32. Which of the following is a conservative force?

A. Friction
B. Tension in a string
C. Air resistance
D. None of the above

Answer: B. Tension in a string

33. Which of the following statements is true about work done by a force?

A. It depends on the path taken by the object.
B. It is a scalar quantity.
C. It can be negative if the force is in the direction opposite to the displacement.
D. All of the above

Answer: D. All of the above

34. Which principle explains why a boat floats on water?

A. Archimedes’ Principle
B. Pascal’s Principle
C. Bernoulli’s Principle
D. None of the above

Answer: A. Archimedes’ Principle

35. What is the SI unit of torque?

A. Joule
B. Newton-meter
C. Watt
D. Pascal

Answer: B. Newton-meter

36. Which of the following is a measure of rotational inertia of an object?

A. Torque
B. Moment of inertia
C. Impulse
D. None of the above

Answer: B. Moment of inertia

37. Which quantity is defined as the rate of change of angular displacement?

A. Angular velocity
B. Angular acceleration
C. Angular momentum
D. None of the above

Answer: B. Angular acceleration

38. Which of the following statements about angular momentum is correct?

A. It is a vector quantity.
B. It is conserved in the absence of external torques.
C. Both A and B
D. None of the above

Answer: C. Both A and B

39. Which of Newton’s laws of motion deals with the concept of action and reaction forces?

A. First law
B. Second law
C. Third law
D. None of the above

Answer: C. Third law

40. Which type of equilibrium is described as when a small displacement results in a restoring force that returns the system to its original position?

A. Stable equilibrium
B. Unstable equilibrium
C. Neutral equilibrium
D. None of the above

Answer: A. Stable equilibrium

41. Which of the following correctly describes the principle of conservation of energy?

A. Energy cannot be created or destroyed, only transformed from one form to another.
B. Energy is always conserved in any physical process.
C. Both A and B
D. None of the above

Answer: C. Both A and B

42. Which quantity is defined as the work done per unit time?

A. Power
B. Energy
C. Force
D. Momentum

Answer: A. Power

43. Which of the following statements about projectile motion is correct?

A. The horizontal component of velocity changes due to gravitational force.
B. The projectile moves with constant horizontal acceleration.
C. Horizontal and vertical components of motion are independent of each other.
D. None of the above

Answer: C. Horizontal and vertical components of motion are independent of each other.

44. Which of the following quantities is conserved in perfectly elastic collisions?

A. Kinetic energy
B. Momentum
C. Potential energy
D. None of the above

Answer: B. Momentum

45. Which of the following statements is true about the work-energy theorem?

A. It states that work done by all forces on an object is equal to the change in its kinetic energy.
B. It states that work done by a conservative force is zero.
C. Both A and B
D. None of the above

Answer: A. It states that work done by all forces on an object is equal to the change in its kinetic energy.

46. Which law of motion is often summarized as $F=ma$?

A. Newton’s First Law
B. Newton’s Second Law
C. Newton’s Third Law
D. None of the above

Answer: B. Newton’s Second Law

47. Which of the following correctly describes torque?

A. Torque is a measure of rotational motion.
B. Torque is the product of force and time.
C. Torque is a scalar quantity.
D. None of the above

Answer: A. Torque is a measure of rotational motion.

48. Which of the following statements about friction is correct?

A. Friction always opposes the motion of an object.
B. Frictional force is independent of the nature of surfaces in contact.
C. Both A and B
D. None of the above

Answer: A. Friction always opposes the motion of an object.

49. Which of the following is a measure of an object’s resistance to changes in rotational motion?

A. Torque
B. Moment of inertia
C. Impulse
D. None of the above

Answer: B. Moment of inertia

More MCQs on Avionics Engineering MCQs

1. Artificial Intelligence MCQs
2. Cybersecurity in Avionics MCQs
3. Spacecraft Avionics MCQs
4. Unmanned Aerial Vehicles (UAVs) MCQs
5. Emerging Technologies MCQs
6. Systems Engineering MCQs
7. Engineering Economics MCQs
8. Project Management MCQs
9. Thermodynamics MCQs
10. Electromagnetism MCQs
11. Electromagnetism MCQ
12. Classical Mechanics MCQs
13. Modelling and Simulation Techniques MCQs
14. Aircraft Simulation MCQs
15. Fault Diagnosis and Management MCQs
16. Reliability Engineering MCQs
17. Aircraft Safety Systems MCQs
18. Aerospace Materials and Composites MCQs
19. Material Science MCQs
20. Advanced Control Systems MCQs
21. Avionics Integration MCQs
22. Advanced Navigation Systems MCQs
23. Antenna Theory and Design MCQs
24. Satellite Communication MCQs
25. Radio Frequency Communication MCQs
26. Measurement and Data Acquisition MCQs
27. Sensor Technologies MCQs
28. Aircraft Instrumentation MCQs
29. Communication Signal Processing MCQs
30. Analog Signal Processing MCQs
31. Real-Time Systems MCQs
32. Software Engineering MCQs
33. Programming Languages (C/C++, Python, etc.) MCQs
34. Computer Science and Software Engineering MCQs
35. Instrumentation and Control MCQs
36. Flight Control Systems MCQs
37. Control Engineering MCQs
38. Microprocessors and Microcontrollers MCQs
39. Electronics and Electrical Engineering MCQs
40. Radar and Surveillance Systems MCQs
41. Communication Systems MCQs
42. Aircraft Navigation Systems MCQs
43. Avionics System Design MCQs
44. Aircraft Structures MCQs
45. Aerodynamics MCQs
46. Flight Mechanics MCQs
47. Introduction to Aerospace Engineering MCQs
48. Aerospace Fundamentals MCQs
49. Avionics Engineering MCQs