| 2009-09-16 | More on internal energy | Thermodynamics | Physics | Khan Academy | 13:45 | 523,219 | |
|
| 2009-09-16 | First law of thermodynamics / internal energy | Thermodynamics | Physics | Khan Academy | 17:40 | 1,492,926 | |
|
| 2009-09-16 | Quasistatic and reversible processes | Thermodynamics | Physics | Khan Academy | 14:37 | 230,721 | |
|
| 2009-09-16 | Macrostates and microstates | Thermodynamics | Physics | Khan Academy | 18:29 | 336,834 | |
|
| 2009-09-12 | More exponential decay examples | Nuclear chemistry | Chemistry | Khan Academy | 7:22 | 97,544 | |
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| 2009-09-12 | Introduction to exponential decay | Nuclear chemistry | Chemistry | Khan Academy | 9:19 | 237,462 | |
|
| 2009-09-12 | Exponential decay formula proof (can skip, involves calculus) | Chemistry | Khan Academy | 12:22 | 171,460 | |
|
| 2009-09-11 | Half-life and carbon dating | Nuclear chemistry | Chemistry | Khan Academy | 12:31 | 583,868 | |
|
| 2009-09-11 | Types of decay | Nuclear chemistry | Chemistry | Khan Academy | 17:03 | 732,997 | |
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| 2009-09-11 | Hydrogen Peroxide Correction | 2:22 | 88,672 | |
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| 2009-09-11 | Galvanic Cells | 18:26 | 355,861 | |
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| 2009-09-10 | Redox Reactions | 14:25 | 612,622 | |
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| 2009-09-10 | More on Oxidation States | 17:29 | 176,395 | |
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| 2009-09-10 | Introduction to Oxidation States | 17:39 | 449,545 | |
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| 2009-09-09 | Weak Acid Titration | 10:24 | 205,645 | |
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| 2009-09-09 | Strong Acid Titration | 12:17 | 251,234 | |
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| 2009-09-09 | Buffers | 18:04 | 304,517 | |
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| 2009-09-08 | Conjugate acids and bases | 16:46 | 675,088 | |
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| 2009-09-07 | pH of a Weak Base | 13:00 | 189,926 | |
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| 2009-09-07 | pH of a Weak Acid | 17:49 | 377,907 | |
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| 2009-09-07 | Acid Base Introduction | 18:37 | 982,762 | |
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| 2009-09-07 | Introduction to pH, pOH, and pKw | 18:09 | 584,811 | |
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| 2009-09-04 | Mini-video on ion size | Periodic table | Chemistry | Khan Academy | 3:04 | 209,235 | |
|
| 2009-09-03 | Introduction to kinetics | Energy and enzymes | Biology | Khan Academy | 15:27 | 756,092 | Vlog |
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| 2009-09-03 | Boiling point elevation and freezing point depression | Chemistry | Khan Academy | 14:00 | 538,827 | |
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| 2009-09-02 | Request for Videos from Users! | 5:27 | 4,337 | |
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| 2009-09-02 | Vapor pressure | States of matter and intermolecular forces | Chemistry | Khan Academy | 18:04 | 618,799 | |
|
| 2009-09-01 | Phase diagrams | States of matter and intermolecular forces | Chemistry | Khan Academy | 12:36 | 642,655 | |
|
| 2009-09-01 | Chilling water problem | States of matter and intermolecular forces | Chemistry | Khan Academy | 11:23 | 224,209 | |
|
| 2009-09-01 | Specific heat, heat of fusion and vaporization example | Chemistry | Khan Academy | 14:49 | 701,946 | |
|
| 2009-08-31 | States of matter follow-up | States of matter and intermolecular forces | Chemistry | Khan Academy | 8:45 | 237,178 | |
|
| 2009-08-30 | States of matter | States of matter and intermolecular forces | Chemistry | Khan Academy | 19:24 | 864,432 | |
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| 2009-08-27 | Balancing Chemical Equations | 14:28 | 2,493,280 | |
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| 2009-08-27 | Formula from Mass Composition | 12:58 | 485,019 | |
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| 2009-08-27 | Molecular and Empirical Formulas | 15:54 | 1,002,945 | |
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| 2009-08-26 | Other Periodic Table Trends | 15:39 | 471,413 | |
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| 2009-08-26 | Periodic Table Trends: Ionization Energy | 12:13 | 1,168,613 | |
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| 2009-08-26 | Valence Electrons | 15:23 | 950,347 | |
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| 2009-08-26 | Groups of the Periodic Table | 11:51 | 966,455 | |
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| 2009-08-25 | Introduction to the atom | Chemistry of life | Biology | Khan Academy | 21:05 | 2,792,424 | Vlog |
|
| 2009-08-22 | Two Passing Bicycles Word Problem | 5:39 | 72,422 | |
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| 2009-08-22 | Passed Bike Word Problem | 5:54 | 41,485 | |
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| 2009-08-22 | Passing Trains | 9:07 | 89,548 | |
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| 2009-08-22 | Overtaking Word Problem | 9:52 | 56,959 | |
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| 2009-08-21 | Early train word problem | Linear equations | Algebra I | Khan Academy | 7:07 | 93,737 | |
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| 2009-08-21 | Officer on Horseback | 8:54 | 62,056 | |
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| 2009-08-21 | EBITDA | Stocks and bonds | Finance & Capital Markets | Khan Academy | 14:07 | 260,459 | |
|
| 2009-08-21 | Enterprise value | Stocks and bonds | Finance & Capital Markets | Khan Academy | 17:29 | 171,625 | |
|
| 2009-08-21 | P/E conundrum | Stocks and bonds | Finance & Capital Markets | Khan Academy | 13:41 | 118,570 | |
|
| 2009-08-20 | Amortization | Stocks and bonds | Finance & Capital Markets | Khan Academy | 7:45 | 177,410 | |
|
| 2009-08-20 | Depreciation | Stocks and bonds | Finance & Capital Markets | Khan Academy | 12:33 | 144,759 | |
|
| 2009-08-19 | P/E discussion | Stocks and bonds | Finance & Capital Markets | Khan Academy | 15:34 | 208,500 | Discussion |
|
| 2009-08-19 | ROA discussion 2 | Stocks and bonds | Finance & Capital Markets | Khan Academy | 10:17 | 98,490 | Discussion |
|
| 2009-08-19 | ROA discussion 1 | Stocks and bonds | Finance & Capital Markets | Khan Academy | 10:31 | 156,754 | Discussion |
|
| 2009-08-19 | Introduction to the price-to-earnings ratio | Finance & Capital Markets | Khan Academy | 14:47 | 407,497 | |
|
| 2009-08-19 | Earnings and EPS | Stocks and bonds | Finance & Capital Markets | Khan Academy | 10:15 | 267,497 | |
|
| 2009-08-19 | Introduction to the income statement | Stocks and bonds | Finance & Capital Markets | Khan Academy | 15:27 | 839,746 | |
|
| 2009-08-19 | Price and market capitalization | Stocks and bonds | Finance & Capital Markets | Khan Academy | 11:56 | 442,863 | |
|
| 2009-08-18 | 3D path counting brain teaser | Puzzles | Math for fun and glory | Khan Academy | 12:15 | 219,983 | |
|
| 2009-08-18 | Path counting brain teaser | Puzzles | Math for fun and glory | Khan Academy | 10:42 | 508,052 | |
|
| 2009-08-14 | Light bulb switching brain teaser | Puzzles | Math for fun and glory | Khan Academy | 11:19 | 356,923 | |
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| 2009-07-29 | Parametric equations 4 | Parametric equations and polar coordinates | Precalculus | Khan Academy | 13:04 | 238,957 | |
|
| 2009-07-28 | Parametric equations 3 | Parametric equations and polar coordinates | Precalculus | Khan Academy | 12:52 | 376,248 | |
|
| 2009-07-28 | Basic multiplication | Multiplication and division | Arithmetic | Khan Academy | 13:20 | 2,121,160 | |
|
| 2009-07-28 | Parametric equations 2 | Parametric equations and polar coordinates | Precalculus | Khan Academy | 9:45 | 387,800 | |
|
| 2009-07-28 | Parametric equations 1 | Parametric equations and polar coordinates | Precalculus | Khan Academy | 11:08 | 919,959 | |
|
| 2009-07-14 | Focus and Directrix of a Parabola 2 | 18:28 | 161,898 | |
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| 2009-07-14 | Parabola Focus and Directrix 1 | 14:31 | 398,264 | |
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| 2009-07-10 | Partial fraction expansion 3 | Partial fraction expansion | Precalculus | Khan Academy | 10:35 | 379,097 | |
|
| 2009-07-10 | Partial fraction expansion 2 | Partial fraction expansion | Precalculus | Khan Academy | 13:02 | 549,674 | |
|
| 2009-07-10 | Partial Fraction Expansion 1.5 | 6:04 | 24,307 | |
|
| 2009-07-09 | Partial fraction expansion 1 | Partial fraction expansion | Precalculus | Khan Academy | 11:28 | 1,133,315 | |
|
| 2009-07-08 | Proof: Hyperbola foci | Conic sections | Algebra II | Khan Academy | 14:50 | 109,364 | |
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| 2009-07-08 | Foci of a hyperbola | Conic sections | Algebra II | Khan Academy | 15:24 | 249,547 | |
|
| 2009-07-07 | Foci of an ellipse | Conic sections | Algebra II | Khan Academy | 13:49 | 596,306 | |
|
| 2009-06-18 | Identifying circles and parabolas from equations | Conic sections | Algebra II | Khan Academy | 11:34 | 139,373 | |
|
| 2009-06-17 | Identifying a hyperbola from an equation | Conic sections | Algebra II | Khan Academy | 11:28 | 117,832 | |
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| 2009-06-16 | Identifying an ellipse from equation | Conic sections | Algebra II | Khan Academy | 9:11 | 217,038 | |
|
| 2009-06-16 | Conic sections: Hyperbolas 3 | Conic sections | Algebra II | Khan Academy | 10:29 | 160,280 | |
|
| 2009-06-16 | Conic sections: Hyperbolas 2 | Conic sections | Algebra II | Khan Academy | 7:30 | 221,051 | |
|
| 2009-06-16 | Conic sections: Intro to hyperbolas | Conic sections | Algebra II | Khan Academy | 13:34 | 581,638 | |
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| 2009-06-15 | Conic sections: Intro to ellipse | Conic sections | Algebra II | Khan Academy | 14:14 | 773,754 | |
|
| 2009-06-15 | Conic Sections: Intro to Circles | 9:04 | 463,091 | |
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| 2009-06-15 | Introduction to conic sections | Conic sections | Algebra II | Khan Academy | 10:58 | 995,112 | |
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| 2009-05-03 | Clarification on last integral example video | 9:47 | 3,201 | |
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| 2009-04-29 | Introduction to the normal distribution | Probability and Statistics | Khan Academy | 26:24 | 1,226,205 | |
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| 2009-04-28 | More integral examples | 11:49 | 3,321 | |
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| 2009-04-26 | Normal distribution excel exercise | Probability and Statistics | Khan Academy | 26:04 | 369,471 | |
|
| 2009-04-24 | Forehead numbers brain teaser | Puzzles | Math for fun and glory | Khan Academy | 12:09 | 207,805 | |
|
| 2009-04-23 | Khan Academy Big Picture | 49:37 | 13,258 | |
|
| 2009-04-21 | Khan Academy Resource Overview | 10:17 | 188,699 | |
|
| 2009-04-17 | Alien abduction brain teaser | Puzzles | Math for fun and glory | Khan Academy | 16:59 | 548,343 | |
|
| 2009-04-17 | Toggler brain teaser | Puzzles | Math for fun and glory | Khan Academy | 11:13 | 581,940 | |
|
| 2009-04-16 | Liar truth-teller brain teaser | Puzzles | Math for fun and glory | Khan Academy | 6:49 | 1,108,056 | |
|
| 2009-04-14 | Blue forehead room solution | Puzzles | Math for fun and glory | Khan Academy | 11:01 | 282,262 | |
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| 2009-04-14 | Blue forehead room brain teaser | Puzzles | Math for fun and glory | Khan Academy | 7:25 | 346,324 | |
|
| 2009-04-12 | Solving 3 Equations with 3 Unknowns | 15:26 | 707,339 | |
|
| 2009-04-10 | Epsilon-delta limit definition 2 | Limits | Differential Calculus | Khan Academy | 10:56 | 584,749 | |
|
| 2009-04-10 | Epsilon-delta limit definition 1 | Limits | Differential Calculus | Khan Academy | 12:48 | 1,101,698 | |
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| 2009-04-07 | CPI index | Inflation | Finance & Capital Markets | Khan Academy | 15:30 | 149,548 | |
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