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Work, Energy & Power
Work Energy and Power
Work and Kinetic Energy: How Net Work Changes Kinetic Energy (ΔK = W_net) (6:46)
Work Done by a Force at an Angle: Why Only F∥ Counts (4:28)
Work–Energy Theorem: Positive, Negative and Zero Work (7:43)
Work Done by Gravity: Why the Sign Flips (8:54)
Work Done by a Variable Force (4:39)
How Do You Find Spring Work from a Force-Position Graph? (9:09)
Work Done per Second, and the P = Fv Link (10:53)
Fixed Power, Heavier Load, Slower Speed and Rising Power (5:52)
Work and Potential Energy: Is Gravity’s Work the Same Energy as ΔU? (6:59)
Conservative and Nonconservative Forces: Why Gravity Cares Only About Height (8:44)
Gravitational Potential Energy: Deriving mgΔy and Choosing the Zero Level (7:55)
Elastic Potential Energy: Where ½kx² Comes From (5:02)
Conservation of Mechanical Energy: When Is It Conserved? (8:23)
Energy Graphs: How Do You Read a Potential Energy Curve? (8:05)
Work and Potential Energy: Is Gravity’s Work the Same Energy as ΔU?
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