Dynamics is a subset of mechanics, which is the study of motion. Whereas kinetics studies that motion itself, dynamics is concerned about the CAUSES of motion. In particular, it involves the concepts of force, momentum and energy. This video gives an overview of what dynamics is, and is useful as an intro to its study, or as a review
1. What is impulse?
2. Deriving conservation of momentum
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sample problems
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pHET
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Using the crash between a bus and a bee I show how we derive and understand Conservation of Momentum 
sample problems
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pHET
This interactive allows you to explore conservation of momentum in two dimensions (NB: you will need to have Flash installed and will probably not work on mobile devices
3. Car crash Physics
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There's a lot of physics involved in car crashes. This video looks at the basics: acceleration, forces, momentum and energy. 
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4. What is work and energy?
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In this video I discuss the relationship between work and energy: the work energy theorem. It includes how the formulas are derived.

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download a worksheet on work


5. Conservation of Energy Explained
6. Conservation of Energy and Collisions
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Using a Newton's Cradle and an air track, with which I do see video analysis, I discuss energy as they relate to elastic and inelastic collisions 
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There are a number of ways we can explore this concepts further.
One aspect of most high school physics course on kinematics, is that they only concern themselves with constant acceleration. In reality however, acceleration, like displacement and velocity, can chance with respect to time.
Velocity is the rate of change of displacement. Unit: m/s^{2}
Acceleration is the rate of change of velocity.
So what is the rate of change of acceleration?
The answer to that is the jerk. So slope of the acceleration vs time graph is the jerk. Unit: m/s^{3}
We can go further. What is the rate of change of the jerk?
Well it's the snap. Unit: m/s^{4}
Can we go further? Yep. The rate of change of snap is the crackle. Unit: m/s^{5}
I think you can guess the next one.
We can go further. What is the rate of change of the jerk?
Well it's the snap. Unit: m/s^{4}
Can we go further? Yep. The rate of change of snap is the crackle. Unit: m/s^{5}
I think you can guess the next one.
resources
 pHET graphing animation  this interactive from the University of Colorado pHet team is a great way to demonstrate the relationship between motion and its graphical analysis. That why I used it in my video. At this time its Java based so will only work on PC/Mac
7. Work and Power
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worked solution
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Coming Soon
worked solution
going deeper
There are a number of ways we can explore this concepts further.
One aspect of most high school physics course on kinematics, is that they only concern themselves with constant acceleration. In reality however, acceleration, like displacement and velocity, can chance with respect to time.
Velocity is the rate of change of displacement. Unit: m/s^{2}
Acceleration is the rate of change of velocity.
So what is the rate of change of acceleration?
The answer to that is the jerk. So slope of the acceleration vs time graph is the jerk. Unit: m/s^{3}
We can go further. What is the rate of change of the jerk?
Well it's the snap. Unit: m/s^{4}
Can we go further? Yep. The rate of change of snap is the crackle. Unit: m/s^{5}
I think you can guess the next one.
We can go further. What is the rate of change of the jerk?
Well it's the snap. Unit: m/s^{4}
Can we go further? Yep. The rate of change of snap is the crackle. Unit: m/s^{5}
I think you can guess the next one.
resources
 pHET graphing animation  this interactive from the University of Colorado pHet team is a great way to demonstrate the relationship between motion and its graphical analysis. That why I used it in my video. At this time its Java based so will only work on PC/Mac
6. How well do you know momentum?
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worked solution
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Test your understanding of conservation laws. So do the Quiz and try to get full marks Then check your understanding if necessary with the video 

worked solution
going deeper
There are a number of ways we can explore this concepts further.
One aspect of most high school physics course on kinematics, is that they only concern themselves with constant acceleration. In reality however, acceleration, like displacement and velocity, can chance with respect to time.
Velocity is the rate of change of displacement. Unit: m/s^{2}
Acceleration is the rate of change of velocity.
So what is the rate of change of acceleration?
The answer to that is the jerk. So slope of the acceleration vs time graph is the jerk. Unit: m/s^{3}
We can go further. What is the rate of change of the jerk?
Well it's the snap. Unit: m/s^{4}
Can we go further? Yep. The rate of change of snap is the crackle. Unit: m/s^{5}
I think you can guess the next one.
We can go further. What is the rate of change of the jerk?
Well it's the snap. Unit: m/s^{4}
Can we go further? Yep. The rate of change of snap is the crackle. Unit: m/s^{5}
I think you can guess the next one.
resources
 pHET graphing animation  this interactive from the University of Colorado pHet team is a great way to demonstrate the relationship between motion and its graphical analysis. That why I used it in my video. At this time its Java based so will only work on PC/Mac

