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Description
Ever since there has been work to do, people have looked for easier ways to complete their tasks. These imaginative videos offer fresh perspectives on how machines are used to make work easier. Animation, graphics, video, and narration are combined to vividly explain the basic physical concepts associated with work, energy, and the six simple machines. Special appearances by a hard-working caveman help put the development of machines into historical....
2) Acceleration
Description
This program defines and demonstrates the concepts of speed, velocity, and acceleration, using basic equations to stress their interrelation. There is also a demonstration of how a variation of Newton's second law of motion can be used to determine the weight of an object. In addition, the contributions of Galileo and Newton to the understanding of acceleration, gravity, and motion are discussed.
Description
Presenting a cornerstone of physics, this program explores the motion of projectiles under gravity-initially in one dimension and then in two-through the examples of juggling balls, as well as stunt bikes and paragliders. Frequent summaries are combined with convenient cues to pause the program and allow students to apply their knowledge. Topics include: motion under constant acceleration, parabolic path of a projectile, resolving projectile motion...
Description
Section one of this program sheds light on the behavior of springs and pendulums undergoing simple harmonic motion, illuminating the application of Hooke's Law and the formula for calculating oscillation. In section two, physics experts like "Working Joe" discuss wave terminology, principles such as periodic waves, and wave types, including transverse, longitudinal, and surface waves. Examples using rope, a radio, and an electric guitar reinforce...
Description
Using original source footage, this program examines several major disasters, including the space shuttle Challenger, and discusses the scientific principles behind the engineering failures. Analyzing each project, a professional engineer uses practical demonstrations to illustrate the miscalculations that cause bridges to collapse, the fuselage of planes to crack, and the roofs of a newly built hotel and a stadium to give way. The program illustrates...
Description
This program introduces the "plane facts" of two-dimensional kinematics via Bright-As-Light, the two-dimensional super girl. Using scenarios based on soccer and archery, the projectile motion equations for calculating initial horizontal and vertical magnitudes, horizontal and vertical velocities, and horizontal and vertical displacements are analyzed in detail.
7) Mass
Description
This program uses original animation and live-action examples to present the concepts of mass, matter, and inertia, clearly distinguishing between mass and weight. Also, Newton's laws of motion are introduced, with an emphasis on mass as a measurement of inertia.
Description
Can a giant hunk of chocolate be used to illustrate friction? It is in section one of this program, which describes kinetic and static friction, the normal force, and the coefficient of friction. In section two, a group of construction workers and the cartoon brothers Bumpkin Bill and Urban Tom elucidate the true nature of work, power, and energy. The Work-Kinetic Energy Principle is also addressed in an example using the "Alexandria Ferro XL" sports...
Description
Ever since there has been work to do, people have looked for easier ways to complete their tasks. These imaginative videos offer fresh perspectives on how machines are used to make work easier. Animation, graphics, video, and narration are combined to vividly explain the basic physical concepts associated with work, energy, and the six simple machines. Special appearances by a hard-working caveman help put the development of machines into historical....
Description
This program rounds out the subject of two-dimensional kinematics with a comprehensive examination of circular and rotational motion. Topics include centripetal force, centripetal acceleration, period, velocity, tangential acceleration, and total acceleration; axis of rotation, rotating through an angle, radians, angular velocity, and linear speed; and just a touch of geometry.
11) Force
Description
Using visual examples and basic calculations, this program defines and illustrates the concept of force, with an emphasis on the relationship between force and motion. Several kinds of forces are examined, including gravity, friction, and centripetal, centrifugal, magnetic, electromagnetic, electrostatic, and nuclear forces. The experiments and findings of Galileo and Newton are introduced as well.
Description
When you use baseball to demonstrate the principles of physics, your students will see science in a whole new way. Divided into four segments, this program takes a close look at the pitch (how gravity, drag, and the Magnus force are used to manipulate the path of the ball); the hit (kinetic energy, the coefficient of restitution, and Newton's Laws of Motion-and the changes that result when rawhide meets wood); the flight (the effects of launch angle,...
Description
In New York City, there are many ways to travel. Of course, it's a lot easier if you're a bird. Using the Big Apple as a living laboratory, this program addresses speed and distance using a pigeon, a taxi, and a tour boat. Additional situations such as the deployment of a Mars rover, a zero-G flight in NASA's Weightless Wonder, a walk on a conveyor belt and a cruising aircraft carrier, and juggling on the Earth and around the Solar System provide...
14) The Amazing mole
Description
The discovery of the mole and its relationship to mass, volume, concentration, and number of particles revolutionized science in its day. With stunning graphics and visual metaphors, this program introduces students to this fundamental concept in chemistry, explaining in a step-by-step way the scale of atomic particles, Avogadro's number, moles in reactions, molar mass, and mole formulas. The program is conveniently divided into chapters to facilitate...
Description
This Science Screen Report explains the forces that come into play when a cyclist puts on the breaks, a pitcher throws a curve, and an airplane takes to the sky. Focusing on such concepts as acceleration, terminal velocity, friction, and balanced and unbalanced forces, the program also delineates Newton's laws of motion and Bernoulli's principle of pressurized air and fluid behavior. For discussions in applied or theoretical science, this is a skillful...
Description
This program travels to the home of Colossus-the world's first ten-inversion steel roller coaster-to reveal the physical, mechanical, and psychological forces that make the roller coaster the undisputed king of thrill rides. Concepting, computer-assisted track design, 3-D simulation, track construction, and car safety mechanisms are covered by some of the experts who know roller coasters best. The goal? Pulse-pounding speed and mind-blowing disorientation...
17) Gravitation
Description
Why are things attracted to one another? How long does it take the moon Titan to complete one orbit around Saturn? And what is the weight of a pizza on the Sun? Using the help of a Sun Surface Pizza delivery person, this program answers these and other burning questions regarding the Law of Universal Gravitation and all three of Kepler's Laws of Planetary Motion.
Description
In this program, one-dimensional wonderboy Not-Quite-Bright and other experts investigate the one-dimensional quantities of displacement, average and instantaneous velocity, and average and instantaneous acceleration through skiing, swimming, and speed-walking vignettes. The kinematic equations for instantaneous velocity, displacement, and final velocity are also examined, along with supporting examples.
Description
This second video in the Principles of Flight series focuses on the forces of Thrust and Drag and how each can affect flight. Viewers then learn how pilots manuever through these forces using primary and secondary instruments which create movement around the three axes of flight. Key terms such as wing tip vortices, pitch, yaw, and roll are explained in detail, giving a clearer understanding of the mysteries of flight.
Description
Beginning with a history of humankind's quest for flight, this video then introduces the basic components of an airplane. It also examines how an aircraft flies, the four forces that affect flight, types of propulsion units, and the instruments used to create movement. It's an interesting introduction to the basics of aeronautics technology.
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