High School Physics: Waves and Light
This free online course examines the different types of waves, reflection of light and fundamental forces of nature.Publisher: ADU
CertificationView course modules
Waves and light is a free online course that introduces you to the most common forms of waves and sounds. Waves are everywhere. Whether we recognize it or not, we encounter waves on a daily basis. Sound waves, visible light waves, radio waves, and slinky waves are just a few examples of waves. In addition to waves, there are a variety of phenomena in our physical world that resemble waves closely and such phenomena can be described as being wave-like. The motion of a pendulum, the motion of a mass suspended by a spring, and the motion of a child on a swing are examples of the impact of waves in our daily lives. Waves (and wavelike phenomena) are everywhere. We study the physics of waves because it provides a glimpse into the physical world that we seek to understand and describe as students of physics. This course identifies the different types of waves and some of the laws associated with them.
Next, the course introduces you to the concept of light and reflection. Light is all around us. Light is vitally important to us, but we don't always take the trouble to understand it. Why does it make some things appear to be a different color from others? Does it travel as particles or as waves? Why does it move so quickly? It not only lets us see in the dark, but its properties are important to many aspects of our lives. Reflections in the rear-view mirrors of cars help to keep us safe. Refraction through lenses of eyeglasses or contact lenses helps some people see better. Have you ever wondered why you are able to see your reflection in a mirror or why you see things reflected in the first place? The answer to these questions happens to be one of the simplest laws in physics; it is called the law of reflection. By the end of this course, you will learn about how light and reflections work.
Lastly, the course introduces you to some of the concepts associated with modern physics. The wave nature of matter is one of the most counter-intuitive concepts in Physics. In 1923, a French physics graduate student named Prince Louis-Victor de Broglie (1892–1987) made a radical proposal based on the hope that nature is symmetric. This course outlines how De Broglie took both relativity and quantum mechanics into account to develop the proposal that all particles have a wavelength. The discovery of the law of conservation of mass helped to turn physics into the respectable science it is today. If scientists know the quantities and identities of reactants for a particular reaction, they can predict the amounts of products that will be made. By the end of this course, you should be able to identify the importance of the laws of conservation of mass and energy. So, register for this course and start your learning today.Start Course Now
Mechanical Waves - Learning Outcomes
Introduction to Mechanical Waves
The Electromagnetic Spectrum
Speed of a Wave
Diffraction and Interference of Light
Sound Waves and Resonance
Mechanical Waves - Lesson Summary
Introduction to Light
Introduction to Light - Learning Outcomes
Speed of Light
Snell's Law and Dispersion
Real Vs Virtual Images
Focal Length of a Mirror
Spherical and Chromatic Aberration
Introduction to Light - Lesson Summary
Modern Physics - Learning Outcomes
Concepts of Modern Physics
Mass - Energy
Fundamental Forces of Nature
Thomson's Model of an Atom
Neutrons in an Atom
Modern Physics - Lesson Summary
Upon the successful completion of this course, you should be able to:
- List some examples of transverse waves and longitudinal waves.
- Explain the production of sound waves from different substances.
- Summarize the reflection of a plane wave by a plane surface.
- Discuss some of the factors that affect the focal length of a lens.
- Distinguish between virtual and real images.
- Discuss the formation of rainbows and the cause of dispersion.
- List some of the fundamental forces in physics.
- Solve for the binding energy per nucleon.
- Explain the wavelength of De Broglie waves.
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