Concept Card: Systems of Units & Physical Quantities 1. Physical Quantities & Invariance: A physical quantity $Q$ is completely expressed by a numerical value $n$ and a unit $u$: $Q = n \times u$ Since the physical magnitude remains constant regardless of the measurement scale: $n_1 u_1 = n_2 u_2 = \text{constant} \implies n \propto … Read more
Work Done by a Constant Force & Dot Product Worksheet This is a worksheet based on lecture “Work Done by Constant Force and Dot Product“ Level 1 Practice Worksheet Questions Q1. The SI unit of work done is equivalent to: (a) $\text{kg}\cdot\text{m/s}$ (b) $\text{kg}\cdot\text{m}^2/\text{s}^2$ (c) $\text{kg}\cdot\text{m}/\text{s}^2$ (d) $\text{kg}\cdot\text{m}^2/\text{s}^3$ Q2. The dimensional formula for work done … Read more
Summary This is Lecture 12 (last lecture) for the topic “Work, Energy and Power”. You can find all resources related with Work, Energy and Power by clicking on this link. Here we will cover the concept of Elastic collision and inelastic collisions in Two Dimensions and different aspects of it. 1. Introduction to Oblique Collisions When two bodies … Read more
Summary This is Lecture 11 for the topic “Work, Energy and Power”. You can find all resources related with Work, Energy and Power by clicking on this link. Here we will cover the concept of Inelastic Collisions in one dimension, coefficient of restitution and different aspects of it. 1. Introduction to Inelastic Collisions In the real world, nearly … Read more
Summary: This is Lecture 10 for the topic “Work, Energy and Power”. You can find all resources related with Work, Energy and Power by clicking on this link. Here we will cover the concept of Elastic collision in One Dimension and different aspects of it. 1. Introduction to Collisions & Classification A collision is a short-duration interaction between … Read more
Summary This is Lecture 9 for the topic “Work, Energy and Power”. You can find all resources related with Work, Energy and Power by clicking on this link. Here we will cover the concept of Motion in a Vertical Circle, and the conditions to make a full vertical loop. 1. Introduction to Non-Uniform Circular Motion Unlike motion in … Read more
Summary This is Lecture 8 for the topic “Work, Energy and Power”. You can find all resources related with Work, Energy and Power by clicking on this link. Here we will cover the concept of Conservative and Non Conservative Forces 1. Introduction to Force Fields In mechanics, when a particle moves through space, it may experience forces that … Read more
Summary: This is Lecture 7 for the topic “Work, Energy and Power”. You can find all resources related with Work, Energy and Power by clicking on this link 1. Total Mechanical Energy ($E$) Mechanical energy is the macroscopic energy associated with the motion and configuration of a system. The Total Mechanical Energy ($E$) of a system is defined … Read more
Summary: This is Lecture 6 for the topic “Work, Energy and Power”. You can find all resources related with Work, Energy and Power by clicking on this link 1. The Definition of Power While Work measures how much energy is transferred, Power measures how fast that energy is transferred. Power is defined as the time … Read more
Summary: This is lecture 5 for the topic Work, Energy and Power. You will find all the resource for the topic “Work, Energy and Power” by clicking this link. 1. Hooke’s Law and the Spring Force An ideal spring is one that perfectly obeys Hooke’s Law. When a spring is stretched or compressed from its … Read more