WORK, ENERGY & POWER

Course Curriculum

Kinetic Energy and Work Done

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Why Work Done is Equal to Change in Kinetic Energy? (7:06)
Work Done at an Angle: Understanding the Dot Product (5:11)
Work and Kinetic Energy Theorem (7:43)
Work Done by Gravity: Positive vs. Negative Work (8:54)
Work Done by a Variable Force (Spring Force) (9:15)
Work Done by a General Variable Force (6:00)
Power (P=Fv): Calculating Average vs. Instantaneous Rate (8:38)
Potential Energy vs. Work: The Negative Relation (W = -ΔU) (7:09)
Conservative vs. Non-Conservative Forces: Path Independence (11:00)
Deriving Potential Energy: Formulas for Gravity (mgh) & Springs (½kx²) (8:09)
Law of Conservation of Mechanical Energy (7:10)
Potential Energy Curves: Stable vs. Unstable Equilibrium (14:38)
Work Done by an External Force (7:37)

Work Energy: Solved Numerical Problems

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Calculating Work (W=Fd): Force, Displacement & Angle (4:56)
Net Work Done: Adding Scalar Work from Multiple Forces (4:18)
Work Done by a Force on an Incline & Work Energy Theorem (3:43)
Work Against Gravity: Lifting Objects & Potential Energy (4:23)
Work Energy Theorem: Mountain Rescue Problem (3:57)
The "Bullet & Block" Problem: Finding Penetration Depth (3:10)
Work Done by a Constant Force: Kinetic Energy Change Calculation (3:25)
Lifting a Chain: The "Center of Mass" Trick (2:16)
Work and Power Calculations: Force Pushing a Box (2:55)
Power on an Incline: The "Cyclist on a Hill" Problem (2:38)
Work done by Gravity on a Sliding Block (4:37)
Spring-Block Systems: Work by Variable Force (1/2kx²) (4:34)
Energy Conservation in Physics: Speed of a Pendulum Ball at Key Points (3:20)
Work Done by Gravity in a Spring-Mass Systems (4:39)
Work Done in Compressing a Spring & Landing the Marble in Box (4:30)
Conservation of Energy Applied to an Inclined Plane Problem (4:45)
Energy Conservation and Kinetic Friction (2:56)
Work Done by an External Force (on a Stone Projected Up) (3:49)
Potential Energy and Kinetic Energy Conservation: 2 Box and Spring Problem (4:25)