Course outline
Module 1
Module 1: Introduction to Classical Mechanics
Introduction to Classical Mechanics
Knowledge check
Q1. What is the fundamental principle of classical mechanics that describes the relationship between force, mass, and acceleration?
- A. Newton's First Law
- B. Newton's Second Law ✓
- C. Newton's Third Law
- D. Law of Universal Gravitation
Why: Newton's Second Law, F = ma, defines the relationship between force, mass, and acceleration.
Q2. Which of the following is a measure of an object's resistance to changes in its motion?
- A. Velocity
- B. Mass ✓
- C. Force
- D. Acceleration
Why: Mass is the measure of an object's resistance to changes in its motion, also known as inertia.
Q3. According to Newton's First Law, an object will remain at rest or in uniform motion unless acted upon by what?
- A. Friction
- B. A net external force ✓
- C. Gravity
- D. Momentum
Why: Newton's First Law states that an object will remain at rest or in uniform motion unless acted upon by a net external force.
Q4. What is the SI unit of force?
- A. Kilogram
- B. Meter
- C. Second
- D. Newton ✓
Why: The SI unit of force is the Newton, named after Sir Isaac Newton.
Q5. Which of the following is an example of Newton's Third Law of Motion?
- A. A ball falling to the ground
- B. A book resting on a table
- C. A rocket launching into space ✓
- D. A car moving at a constant speed
Why: Newton's Third Law states that for every action, there is an equal and opposite reaction. A rocket launching is an example of this, as the rocket exerts force on the exhaust gases, and the gases exert an equal and opposite force on the rocket.
Module 2
Module 2: Newton's Laws of Motion
Newton's Laws of Motion
Knowledge check
Q1. What is Newton's first law of motion also known as?
- A. Law of Acceleration
- B. Law of Inertia ✓
- C. Law of Action and Reaction
- D. Law of Gravitation
Why: Newton's first law is commonly referred to as the Law of Inertia, which states that an object will remain at rest or in uniform motion unless acted upon by an external force.
Q2. Which of Newton's laws explains why a ball rolling on a rough surface stops faster than on a smooth surface?
- A. First Law ✓
- B. Second Law
- C. Third Law
- D. None of the above
Why: The first law explains that an object in motion will stay in motion unless acted upon by an external force. Friction is the external force that causes the ball to stop faster on a rough surface.
Q3. What is the SI unit of force?
- A. Newton (N) ✓
- B. Kilogram (kg)
- C. Meter per second squared (m/s²)
- D. Joule (J)
Why: The SI unit of force is the Newton (N), named after Sir Isaac Newton, and is defined as the force required to accelerate a mass of one kilogram at a rate of one meter per second squared.
Q4. According to Newton's third law of motion, every action has an equal and opposite reaction. Which of the following is an example of this?
- A. A book resting on a table
- B. A rocket launching into space ✓
- C. A car moving at constant speed
- D. A ball falling to the ground
Why: A rocket launching into space is an example of Newton's third law, as the action of the rocket expelling gas downward results in an equal and opposite reaction that propels the rocket upward.
Q5. Which of Newton's laws is best described by the formula F = ma?
- A. First Law
- B. Second Law ✓
- C. Third Law
- D. None of the above
Why: Newton's second law is best described by the formula F = ma, which relates force (F), mass (m), and acceleration (a).
Module 3
Module 3: Forces and Motion
Forces and Motion
Knowledge check
Q1. What is the SI unit of force?
- A. Meter
- B. Newton ✓
- C. Kilogram
- D. Second
Why: The SI unit of force is the newton, named after Sir Isaac Newton.
Q2. Which of Newton's laws states that an object at rest stays at rest, and an object in motion stays in motion unless acted upon by an external force?
- A. First Law ✓
- B. Second Law
- C. Third Law
- D. Fourth Law
Why: This is Newton's First Law, also known as the law of inertia.
Q3. What is the term for the force that opposes the motion of objects that are in contact?
- A. Friction ✓
- B. Gravity
- C. Tension
- D. Normal Force
Why: Friction is the force that opposes the motion of objects in contact with each other.
Q4. Which of the following is a vector quantity?
- A. Mass
- B. Distance
- C. Speed
- D. Force ✓
Why: Force is a vector quantity because it has both magnitude and direction.
Q5. What is the acceleration of an object if a net force of 10 N is applied to a mass of 2 kg?
- A. 2 m/s²
- B. 5 m/s² ✓
- C. 10 m/s²
- D. 20 m/s²
Why: Using Newton's Second Law, F = ma, acceleration a = F/m = 10 N / 2 kg = 5 m/s².
Module 4
Module 4: Work, Energy, and Power
Work, Energy, and Power
Knowledge check
Q1. What is the SI unit of work?
- A. Newton
- B. Joule ✓
- C. Watt
- D. Pascal
Why: Work is measured in joules, which is equivalent to newton-meters.
Q2. Which of the following is a scalar quantity?
- A. Force
- B. Work ✓
- C. Momentum
- D. Velocity
Why: Work is a scalar quantity as it has only magnitude and no direction.
Q3. What is the formula for work done?
- A. Force × Time
- B. Mass × Acceleration
- C. Force × Distance ✓
- D. Mass × Velocity
Why: Work done is calculated as force multiplied by the distance over which the force is applied.
Q4. What is the SI unit of power?
- A. Joule
- B. Watt ✓
- C. Newton
- D. Pascal
Why: Power is measured in watts, which is equivalent to joules per second.
Q5. Which of the following is the definition of power?
- A. The ability to do work
- B. The rate at which work is done ✓
- C. The total amount of work done
- D. The force applied over a distance
Why: Power is defined as the rate at which work is done or energy is transferred.
Module 5
Module 5: Circular Motion and Gravitation
Circular Motion and Gravitation
Module 6
Module 6: Moments of Inertia and Rotational Dynamics
Moments of Inertia and Rotational Dynamics
Module 7
Module 7: Oscillations and Waves