The website catalogues both lecture demonstrations and VPython scripts. The lecture demo section contains descriptions of the setup and execution of various physics experiments, along with screenshots and a reference for finding the equipment in the UCT Physics labs. The VPython scripts section contains scripts that demonstrate various physics concepts.
The aim of the submitted resource (Learning Objective ) to explain the electromagnetic theory
for find the velocity of EM wave in free space and also to find defined Medium characteristics for EM wave (e.g. medium Impedance )
Electromagnetism problems for the WeBWorK open online homework system. Includes problems at a second-year level.
The "tested" problems have been deployed in a class. The "untested" problems have been tested by the creators, but not yet deployed in a class.
These problems need to be uploaded into an instance of WeBWorK to use/assign them.
In this introduction to light energy, students learn about reflection and refraction as they learn that light travels in wave form. Through hands-on activities, they see how prisms, magnifying glasses and polarized lenses work. They also gain an understanding of the colors of the rainbow as the visible spectrum, each color corresponding to a different wavelength.
Students use electricity every day. It is important to know how it works. Why does the light come on when they flip the switch? With a simple knowledge of circuits, students will understand how electrical energy moves from one place to another. Students will provide evidence to describe why the light bulb turned on, including the idea that energy can be transferred from place to place by electrical currents.
To evaluate the different integumentary systems found in the animal kingdom, students conduct an exploratory research-based lab. During the activity, students create a model epidermis that contains phosphorescent powder and compare the results to a control model. After learning about the variations of integumentary systems—systems that comprise the skin and other appendages that act to protect animal bodies from damage—students act as engineers to mimic animal skin samples. Their goal is to create a skin sample that closely represents the animal they are mimicking while protecting the base ‘epidermis’ from UV light.
This resource provides a short reading section with experimental data and a few questions about the text. It was created with standardized assessment in mind and aligned with Next Generation Science Standards.
Students will investigate how collisions can change the direction and speed of an object in terms of a change in energy. This is important to understand for many sports as well as many safety issues on the road.
Students will learn the difference between an insulator and a conductor and why conductors help to close electricalcircuits. This is important content to better understand how energy and particularly electrical energy works.
In this course, the student will first learn about waves and oscillations in extended objects using classical mechanics. The course will then examine the sources and laws that govern static electricity and magnetism. A brief look at electrical measurements and circuits will help establish how electromagnetic effects are observed, measured, and applied. These topics lead to an examination of how Maxwell's equations unify electric and magnetic effects and how the solutions to Maxwell's equations describe electromagnetic radiation, which will serve as the basis for understanding all electromagnetic radiation, from very low frequency radiation emitted by power transmission lines to the most powerful astrophysical gamma rays. The course also investigates optics and launches a brief overview of Einstein's special theory of relativity. A basic knowledge of calculus is assumed. (Physics 102; See also: Biology 110, Chemistry 002, Mechanical Engineering 006)
Students explore electromagnetism and engineering concepts using optimization techniques to design an efficient magnetic launcher. Groups start by algebraically solving the equations of motion for the velocity at the time when a projectile leaves a launcher. Then they test three different launchers, in which the number of coils used is different, measuring the range and comparing the three designs. Based on these observations, students record similarities and differences and hypothesize on the underling physics. They are introduced to Faraday's law and Lenz's law to explain the physics behind the launcher. Students brainstorm how these principals might be applied to real-world engineering problems.
Students learn about magnets and how they are formed. They investigate the properties of magnets and how engineers use magnets in technology. Specifically, students learn about magnetic memory storage, which is the reading and writing of data information using magnets, such as in computer hard drives, zip disks and flash drives.
Broadcast radio waves from KPhET. Wiggle the transmitter electron manually or have it oscillate automatically. Display the field as a curve or vectors. The strip chart shows the electron positions at the transmitter and at the receiver.
In this activity, you'll make an electric motor--a simple version of the electric motors found in toys, tools, and appliances everywhere. The activity includes three short online videos: Introduction, Step-by-Step Instructions, and What's Going On. Also available: a concept map and a "Going Further" document that suggests variations on this activity.
Students learn more about magnetism, and how magnetism and electricity are related in electromagnets. They learn the fundamentals about how simple electric motors and electromagnets work. Students also learn about hybrid gasoline-electric cars and their advantages over conventional gasoline-only-powered cars.
Video clips from federal and regional agencies show scientists at work with tools used to collect data about the climate and weather. This article, from the free, online magazine Beyond Weather and the Water Cycle, will help students visualize the tools and how they are used in the atmosphere, at sea, and other hard-to-access locations.