Calculus based review of work done by constant and non-constant forces, Hooke’s Law, Work and Energy equations in isolated and non-isolated systems, kinetic energy, gravitational potential energy, elastic potential energy, conservative vs. nonconservative forces, conservation of mechanical energy, power, neutral, stable, and unstable equilibrium.

For the calculus based AP Physics C mechanics exam. Want Lecture Notes?

Content Times:

0:11 Work done by a constant force

2:25 Work done by a non-constant force

3:58 Force of a Spring (Hooke’s Law)

4:52 Calculating the work done by the force of a spring

6:26 Net work equals change in kinetic energy

7:02 Gravitational Potential Energy

7:50 Non-isolated systems work and energy

8:29 Isolated systems work and energy

9:02 Conservative vs. Nonconservative forces

10:10 Conservation of Mechanical Energy

10:45 Power

12:09 Every derivative can be an integral

13:00 Conservative forces and potential energy

13:46 Deriving Hooke’s Law from elastic potential energy

14:22 Deriving the force of gravity from gravitational potential energy

15:17 Neutral, stable, and unstable equilibrium

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Calculus based review of Newton’s three laws, basic forces in dynamics such as the force of gravity, force normal, force of tension, force applied, force of friction, free body diagrams, translational equilibrium, the drag or resistive force and terminal velocity. For the calculus based AP Physics C mechanics exam.

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Content Times:

0:18 Newton’s First Law

1:30 Newton’s Second Law

1:55 Newton’s Third Law

2:29 Force of Gravity

3:36 Force Normal

3:58 Force of Tension

4:24 Force Applied

4:33 Force of Friction

5:46 Static Friction

6:17 Kinetic Friction

6:33 The Coefficient of Friction

7:26 Free Body Diagrams

10:41 Translational equilibrium

11:41 Drag Force or Resistive Force

13:25 Terminal Velocity

Next Video: AP Physics C: Work, Energy, and Power Review (Mechanics)

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Previous Video: AP Physics C: Kinematics Review (Mechanics)

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Review of conversions, velocity, acceleration, instantaneous and average velocity and acceleration, uniformly accelerated motion, free fall and free fall graphs, component vectors, vector addition, unit vectors, relative velocity and projectile motion. For the calculus based AP Physics C mechanics exam.

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Content Times:

0:12 Introductory Concepts

2:07 Velocity and Acceleration

3:03 Uniformly Accelerated Motion

6:51 Free Fall

7:45 Free Fall Graphs

9:16 Component Vectors

10:58 Unit Vectors

13:09 Relative Velocity

13:51 Projectile Motion

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]]>A 28.8 g yellow air hockey disc elastically strikes a 26.9 g stationary red air hockey disc. If the velocity of the yellow disc before the collision is 33.6 cm/s in the x direction and after the collision it is 10.7 cm/s at an angle 63.4° S of E, what is the velocity of the red disc after the collision? This is an AP Physics 1 topic. Want Lecture Notes?

Content Times:

0:12 The problem

1:49 Breaking the initial velocity of disc 1 into its components

3:06 Conservation of momentum in the x-direction

5:24 Conservation of momentum in the y-direction

6:26 Solving for the final velocity of disc 2 using its components

8:40 Was this an elastic collision?

12:39 Movie Character Day!

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"Nombre de los vientos". Licensed under Public domain via Wikimedia Commons -

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By the time students learn about all the equations for mechanical energy, momentum, impulse and impact force, they often start to confuse the equations with one another. This is a straightforward, simple look at all of those equations and when to use them.

This is an AP Physics 1 Topic. Want Lecture Notes?

Content Times:

0:14 Tacky Sweater Day!

0:22 Conservation of Mechanical Energy

0:54 Work due to Friction equals Change in Mechanical Energy

1:30 Net Work equals change in Kinetic Energy

3:01 Conservation of Momentum does NOT require the work due to friction to be zero

3:28 The initial and final points when dealing with momentum are predetermined

3:56 Impulse does not equal Impact Force

Thank you to Sophie Jones and her family for letting me use six of their sweaters in this video!

Next Video: 2D Conservation of Momentum Example using Air Hockey Discs

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Previous Video: Impulse Comparison of Three Different Demonstrations

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Episode 12. The Millikan Experiment: A dramatic recreation of Millikan's classic oil-drop experiment to determine the charge of a single electron.

“The Mechanical Universe,” is a critically-acclaimed series of 52 thirty-minute videos covering the basic topics of an introductory university physics course.

Each program in the series opens and closes with Caltech Professor David Goodstein providing philosophical, historical and often humorous insight into the subject at hand while lecturing to his freshman physics class. The series contains hundreds of computer animation segments, created by Dr. James F. Blinn, as the primary tool of instruction. Dynamic location footage and historical re-creations are also used to stress the fact that science is a human endeavor.

The series was originally produced as a broadcast telecourse in 1985 by Caltech and Intelecom, Inc. with program funding from the Annenberg/CPB Project.

The online version of the series is sponsored by the Information Science and Technology initiative at Caltech. http://ist.caltech.edu

©1985 California Institute of Technology, The Corporation for Community College Television, and The Annenberg/CPB Project

A racquetball is dropped on to three different substances from the same height above each: water, soil, and wood. Rank the _______ during the collision with each substance in order from least to most. (a) Impulse. (b) Average Force of Impact. (Assume the racquetball stops during the collision with the water and soil.)

This is an AP Physics 1 Topic. Want Lecture Notes?

Content Times:

0:11 Prom Dress Day!

0:20 The three demonstrations

0:32 The problem

1:43 The equation for Impulse and Impact Force

2:02 Understanding the two parts to the demonstrations

3:33 Part (a): Impulse [water and soil]

4:47 Part (a): Impulse [wood]

5:23 Part (b): Impact Force [water and soil]

6:27 Part (b): Impact Force [wood]

7:59 The Ann Arbor Prom Dress Project

Thank you to Jan Wery and Judi Lintott of the Ann Arbor Prom Dress Project: “Find your dream dress for less than $25."

Next Video: Review of Mechanical Energy and Momentum Equations and When To Use Them!

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Previous Video: Using Impulse to Calculate Initial Height

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A 66 g beanbag is dropped and stops upon impact with the ground. If the impulse measured during the collision is 0.33 N·s, from what height above the ground was the beanbag dropped?

This is an AP Physics 1 Topic. Want Lecture Notes?

Content Times:

0:12 Superhero Day!

0:56 The problem

1:39 Splitting the problem in to two parts

2:32 Using Impulse for part 2

3:30 Using Conservation of Energy for part 1

4:45 What went wrong?

Next Video: Impulse Comparison of Three Different Demonstrations

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Previous Video: Review of Momentum, Impact Force, and Impulse

Thanks to Adam Herz for letting me borrow a VHS copy of our high school video yearbook which he was instrumental in the creating of.

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Two kids walk through the woods discussing momentum. I mean, who wouldn’t?

Okay, fine. It’s a basic introduction to the concept of momentum.

Want Lecture Notes? This is an AP Physics 1 Topic.

Next Video: Force of Impact Equation Derivation

http://www.flippingphysics.com/impact-force.html

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An important review highlighting differences between the equations for Conservation of Momentum, Impact Force and Impulse.

Want lecture notes? This is an AP Physics 1 Topic.

Content Times:

0:17 Conservation of Momentum

1:01 An explosion is a collision in reverse

1:22 Impact Force

1:39 Impulse

2:16 Impulse equals 3 things

2:53 How many objects are in these equations?

A big THANK YOU to Elle Konrad who let me borrow several of her old dance costumes!

Next Video: Using Impulse to Calculate Initial Height

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Previous Video: Demonstrating How Helmets Affect Impulse and Impact Force

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