Videos tagged metpy105
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Acceleration - thinking about signs
In this video, we focus on what a sign means when it is associated with the acceleration.
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PY105 pre-class video for session 24 - Torque
In this video, we introduce torque, which is the rotational equivalent of torque. We then go over three equivalent ways to calculate torque in a particular situation.
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Acceleration - graphs for motion with constant acceleration
In this video, we look at motion graphs for an example of a ball we simply drop from rest from a height of 20 meters above the ground. We ignore air resistance, so the ball's acceleration is constant as it falls. We will graph the ball's acceleration [...]as a function of time, velocity as a function of time, and position as a function of time. We will also use the graphs to see the connections between the acceleration and the velocity, and between the velocity and the position.
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Acceleration - the basic definition
This video is a brief introduction to acceleration, going over the basic definition.
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PY105 pre-class video for session 15 - uniform circular motion
In this video, we start looking at uniform circular motion, which is motion in a circular path at constant speed. We derive the equation we generally use for uniform circular motion, and then we use the equation to compare two objects in various [...]situations.
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PY105 pre-class video for session 26 - Static equilibrium
In this video, we introduce static equilibrium, which is a fancy phrase for an object that remains at rest. In static equilibrium, two conditions must be met - the first is that there is no net force acting on the object, and the second is that there [...]is no net torque acting on the object. We'll look at a simple situation of an object that remains at rest, and see how we apply the equilibrium conditions to solve for the values of two unknown forces. Watch out for a typo in the torque equation on the second-last slide (this is noted in the audio narration accompanying the video), where a "-mg" term in the equation should be "-dmg" instead.
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PY106 pre-class video for session 24 - The Doppler effect
In this video, we introduce the Doppler effect, which is the shift in frequency caused by motion of the source, or the observer (or both), of waves. We will derive the general equation for the Doppler effect for sound waves, and the video will also [...]include several animations to help illustrate why there is a frequency shift when either the observer or the source moves.
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PY105 pre-class video for session 38 - The ideal gas law and kinetic theory
In this video, we will talk briefly about an ideal gas, and state the ideal gas law. We will also go over the results of kinetic theory - kinetic theory is the application of basic principles of physics to individual molecules. The main result of [...]kinetic theory is a fundamental insight into what temperature is, which is a measure of the average kinetic energy of the molecules.
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