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Number of g's or g-Forces Introduction
Description and examples of g-forces or number of g’s.
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Time Constant and the Drag Force
The time constant is defined. The equations of motion for a dropped object in terms of the time constant are derived. The graphs for those equations are also shown. Want Lecture Notes? http://www.flippingphysics.com/drag-f... This is an...
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Conical Pendulum Demonstration and Problem
A conical pendulum is demonstrated and it’s angular velocity is determined.
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Demonstrating and Solving for Drag Coefficient
The drag coefficient of a steel sphere is demonstrated and measured. A common mistake is shown. Buoyancy force is discussed. Want Lecture Notes? http://www.flippingphysics.com/drag-c... This is an AP Physics C: Mechanics topic.
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Wheel Conservation of Angular Momentum Demonstration and Solution
A #SpinningWheel is rotated while sitting on a stool. #AngularMomentumConservation is demonstrated. And an example problem is solved.
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The Force of Gravitational Attraction between the Earth and the Moon
According to NASA, the mass of the Earth is 5.97 x 10^24 kg, the mass of the Moon is 7.3 x 10^22 kg, and the mean distance between the Earth and the Moon is 3.84 x 10^8 m. What is the force of gravitational attraction between the Earth...
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Demonstrating What Changes the Period of Simple Harmonic Motion
Period of simple harmonic motion is defined and demonstrated. Equations for period of mass-spring systems and pendulums are given. What changes the period is demonstrated.
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Review of Mechanical Energy and Momentum Equations and When To Use Them!
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...
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Harnessing the Power of Spreadsheets in Physics
Basic demonstration of how to use spreadsheets in an introductory physics class.
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Minimum Speed for Water in a Bucket Revolving in a Vertical Circle
What is the minimum angular speed necessary to keep water in a vertically revolving bucket? The rope radius is 0.77 m.
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Memorizing vs. Understanding in Physics
In physics many students discover that they need to learn to understand the material rather than memorize it. This video discusses and shows examples of the differences between the two.
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AP Physics C: Integrals in Kinematics Review (Mechanics)
Calculus based review of definite integrals, indefinite integrals, and derivatives as used in kinematics. Graphs of position, velocity, and acceleration as a function of time are compared using derivatives and integrals. Two of the...
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Throwing a Ball in a Boat - Demonstrating Center of Mass
When I throw a massive ball to the left such that it lands in the other end of the canoe, what will happen to the positions of the objects? What if the ball does not land in the canoe?
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Calculating the Force of Impact when Stepping off a Wall
A 73 kg mr.p steps off a 73.2 cm high wall. If mr.p bends his knees such that he stops his downward motion and the time during the collision is 0.28 seconds, what is the force of impact caused by the ground on mr.p?
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Painter on a Scaffold - Don't Fall Off!!
What is the closest to the end of a 93 g uniform meterstick you can place a 200.0 g object and have the system stay balanced? The meterstick is supported at the 20.0 cm and 80.0 cm marks.
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Toy Car UAM Problem with Two Difference Accelerations
In this lesson we continue to use what we have learned about solving Uniformly Accelerated Motion (UAM) problems. This problem is more complicated because it involves two, interconnected parts.
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A Common Misconception about Newton's Thrid Law Force Pairs (or Action-Reaction Pairs)
Proof that the Force Normal and the Force of Gravity are not a Newton’s Third Law Force Pair.
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Angular Momentum of a Rigid Object with Shape Introduction
The equation for #AngularMomentum of #RigidObjects with shape is introduced and a simple example of angular momentum is solved for.
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Walking Position, Velocity and Acceleration as a Function of Time Graphs
This lesson builds on what we learned about position as a function of time graphs. We start with velocity as a function of time graphs, determine what the motion would look like and then draw position and acceleration as a function of...
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Demonstrating How Helmets Affect Impulse and Impact Force
Demonstrating and measuring how a helmet changes impulse, impact force and change in time during a collision.
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Demonstrating Position, Velocity, and Acceleration of a Mass-Spring System
A “live” demonstration of of collecting position, velocity, and acceleration of a vertical mass-spring system.
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AP Physics C: Dynamics Review (Mechanics) - Newton's 3 Laws, Friction, Equilibrium
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...
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Altitude of Geostationary Orbit (a special case of Geosynchronous Orbit)
Calculate the altitude of a satellite in geostationary orbit which is an orbit with the same 24 hour period as the Earth and always located directly over the same location on the equator. Geostationary orbit is a special case of...
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AP Physics C: Rotational Dynamics Review - 2 of 2 (Mechanics)
Calculus based review of the cross product torque equation, how to do a unit vector cross product problem, rotational equilibrium, the rotational form of Newton’s second law, the angular momentum of a particle and of a rigid object with...