Clover Park School District Physics Curriculum Guide 2013-2014 Timeline Units 4 5 weeks Established Goals (Non-negotiable) Washington State Content Science Standards 9-11 PS3D Waves (including sound, seismic, light, and water waves) transfer energy when they interact with matter. Waves can have different wavelengths, frequencies, and amplitudes, and travel at different speeds. 9-11 PS3E Electromagnetic waves differ from physical waves because they do not require a medium and they all travel at the same speed in a vacuum. This is the maximum speed that any object or wave can travel. Forms of electromagnetic waves include X-rays, ultraviolet, visible light, infrared, and radio. Waves and Optics Stage 1 – Desired Results Transfer Students will be able to independently use their learning to … Understand the properties of waves, how waves transfer energy and how this energy is transferred or changed within a system. Understand how the properties of electromagnetic waves leads to the development of medical technologies Meaning Understandings (Non-negotiable) Students will understand that … Energy can be transmitted by sending waves through a medium. Physical waves can be described by their characteristics of frequency, wavelength, amplitude, and speed. August 2013 The properties of waves lead to the pitch and volume of sound waves and to the wavelength and magnitude of water waves. Regions of the electromagnetic spectrum differ regarding wavelength, frequency, and energy, and the technology can be applied in different ways (e.g., infrared in heat lamps, microwaves for heating foods, X-rays for medical imaging). Recommended Essential Questions Students will keep considering … How does a wave transfer energy? What is the relationship between wavelength and frequency? How do waves create the sounds that I hear and the colors that I see? How can waves interfere with each other? Why does the police siren sound different when it passes by me? What is light? Why do objects appear to be different colors? How can we explain the colors in a rainbow? How do microscopes and telescopes work? 1 of 3 Clover Park School District Physics Curriculum Guide 2013-2014 Acquisition Students will know … • • • • • • • • • • • • August 2013 That waves transfer energy without transferring matter. The relationships between wave speed, wavelength and frequency How the Doppler Effect uses frequency shift to explain the apparent pitch change observed in both moving-source and moving-observer cases. The difference between transverse and longitudinal waves, and be able to explain qualitatively why transverse waves can exhibit polarization. That the phenomenon of interference can be explained by the principle of wave superposition. That the physical property of a sound wave determines the way that we perceive the pitch and loudness of that sound. That sound is produced by a vibrating object. That beat notes occur as a result of superposition of two sound waves that are at slightly different frequencies. That electromagnetic waves transport energy from a source to a receiver and travel in a vacuum with the speed of light, c. The names associated with electromagnetic radiation and be able to arrange in order of increasing wavelength the following: visible light of various colors, ultraviolet light, infrared light, radio waves, x-rays, and gamma rays. That light bends when it moves from one medium to another. How concave, convex, and plane mirrors form images Students will be skilled at … • Sketching or identifying graphs that represent traveling waves and determine the amplitude, wavelength and frequency of a wave from such a graph. • Describing how waves respond at boundaries between media in terms of reflection, refraction and diffraction. Instructional Materials Textbook: Physics by Serway & Faughn, 2012 Common Labs: (probeware when appropriate) • • • • • • • • • • • • • • • • • Hooke’s Law Pendulum Periods Speed of Sound Resonance Sound Waves and Beats Lights and Mirrors Brightness of Light Polarization of Light Refraction Converging Lenses Diffraction Double-Slit Interference Science Media and journals Web Animations Discovery Education Video/DVD Modeling Materials 2 of 3 Clover Park School District Physics Curriculum Guide 2013-2014 • • • • • • • • • • • • August 2013 Demonstrating how energy can be transmitted by sending waves along a spring or rope and characterizing physical waves by frequency, wavelength, amplitude, and speed. Describing qualitatively what factors determine the speed of waves on a string and the speed of sound. Applying the inverse-square law, calculate the intensity of waves at a given distance from a source of specified power and compares the intensities at different distances from the source. Providing solutions that demonstrate the relationships between the frequency, wavelength and velocity of sound. Applying the principle of superposition to traveling waves moving in opposite directions, and describe how a standing wave may be formed by superposition Arranging in order of increasing wavelength the following: visible light of various colors, ultraviolet light, infrared light, radio waves, x-rays, and gamma rays. Determining how the speed and wavelength of light change when light passes from one medium into another. Show on a diagram the directions of reflected and refracted rays. Using Snell’s Law to relate the directions of the incident ray and the refracted ray, and the indices of refraction of the media. Illustrating the electromagnetic spectrum with a labeled diagram, showing how regions of the spectrum differ regarding wavelength, frequency, and energy Locating by ray tracing the image of an object formed by a plane mirror, and determine whether the image is real or virtual, upright or inverted, enlarged or reduced in size. Using the mirror equation to relate the object distance, image distance and focal length for a lens, and determine the image size in terms of the object size. 3 of 3
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