The Book of Phyz - AP Physics 1
AP1.04 ENERGY

Dean Baird. All rights reserved.

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The documents and all material contained therein are Dean Baird. All rights reserved. They may be used by teachers and students for classroom instruction. Beyond that, no part of these documents may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage or retrieval system, without permission in writing from the author.



GUIDES
1 Energy Examples
Definitions of quantities, explanations of equations, and worked out example problems.
2 Work / Simple Machines
A development of the physics definition of work and why you don't do any when it seems like you do.
3 Equilibrium & Stability
Describes the conditions for equilibrium and distinguishes stable, unstable and neutral equilibrium.
4 Gravitational Potential Energy
Describes potential energy as energy required to move away from equilibrium; describes gravitational PE.
5 Kinetic Energy
Describes kinetic energy as the result of work and shows a derivation of the equation for KE.
6 Conservation of Energy
Illustrates how energy undergoes transformations without increasing or decreasing in quantity.
7 Power
Simple discussion of power and derivation of P=Fv from P=W/t. Remember: it's wrong to say that power is the rate at which work is done. How much work does a 60-watt lightbulb do each second?



JOBS
1 Work Springboard - Answers - Presentation (Zipped QuickTime)
Introduces the concept of physical work through illustrative examples. Addresses positive, negative, and zero work.
2 Potential Energy Springboard - Answers - Presentation (Zipped QuickTime)
Introduces the concept of gravitational potential energy and its dependence on mass, height, and gravitational acceleration.
3 Kinetic Energy Springboard - Answers - Presentation (Zipped QuickTime)
Introduces the concept of kinetic energy and its dependence on mass and the square of speed.
4 Conservation of Energy Springboard - Answers - Presentation (QuickTime)
A classroom demonstration and discussion involving loading and firing a dart gun.
5 Energy Transformation Sketches - Answers - Pole Vault Preso (QuickTime) - Dart Gun Preso (QuickTime)
A classroom demonstration and discussion involving loading and firing a dart gun.
6 Power Springboard - Answers - Presentation (Zipped QuickTime)
Introduces the concept of mechanical power and its dependence on work and time.
7 Roller Coaster - Answers
A quantitative exercise following ideal energy transformations throughout a roller coaster ride. Involves estimation, work, power, gravitational potential enertgy, and kinetic energy.
8 Work-Momentum Conundrums - Answers - Presentation (Zipped QuickTime)
Twins push different carts for equal distances or equal times. Which cart ends up with more momentum or kinetic energy in each case. Non-trivial!
   

LABS - The unlinked titles below are available in the Conceptual Physics lab manual from Pearson Education - Amazon link
1 An Uphill Climb Prelab - An Uphill Climb
Laboratory comparison of using a steep path or a shallow path to crest a hill. Which--if either--is better from an ideal energy consideration?
2 Catch The Pop-Up
A comparison of maximum kinetic energy and maximum kinetic energy of a ball launched vertically.



DEMOS - The unlinked titles below are available in the Conceptual Physics lab manual from Pearson Education - Amazon link
1 Nailed! - Presentation (Zipped QuickTime HD)
A set of questions and illustrations to accompany a segment of Physics: Cinema Classics that involves energy transfortmations.
2 Nailed 2 - Presentation (Zipped QuickTime HD)
A set of calculations to follow the "Nailed!" demonstration.
 3 Physics in The Fountain of Fizz
The physics of the Diet Coke-Mentos geyser. Not the chemistry. The physics.


  OTHER

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Energy Begins With an M (QuickTime)
Part of the "Physics Begins with an M" series. This is a QuickTime export from Keynote that has been Zipped.
Energy Begins With an M Keynote
A nifty Keynote presentation of the M's. (Keynote is Apple's presentation software; PowerPoint is Microsoft's presentation software.) Trust me, neither Keynote nor PowerPoint are The Great Saviors of education. I recommend using them sparingly if at all. Better to teach!
3 Mechanical Universe: Potential Energy (College)
This episode traces back to the origins of the idea of potential energy and relates potential energy to equilibrium and stability. Alternate forms accommodate students seated side-by-side.
4
YouTube Physics: Danny MacAskill April 2009 - Link to the YouTube video (v=Z19zFlPah-o) Running Time 5:38
A broad, encompassing physics lesson to accompany this jaw-dropping, slickly-produced mini-masterpiece of applied physics.
 5 Mechanical Universe: Conservation of Energy
This episode develops conservation of energy. Alternate forms accommodate students seated side-by-side.
6
Energy Crossword Puzzle Grid - Clues
Crossword puzzles are highly personalized and may not always translate well from my classroom to yours.
7
Practice Test Questions - Answers
Sample test questions covering energy.


Click here for a legend and explanation of cryptic terms and abbreviations.

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The Book of Phyz Dean Baird. All rights reserved.