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2 Study Guide Study Guide Light entering the eye is bent by the cornea and lens to form an image on the retina. 1 Waves and the Electromagnetic Spectrum Key Concepts • Interactive Student Edition • Self-Assessment with remediation • Assessment reports for teachers ● ● ● 4 Seeing Light Key Concepts ● 2 Visible Light and Color Key Concepts ● Teaching Resources Teaching Resources, Unit 1 • Chapter 2 Key Terms Review • Chapter 2 Vocabulary Skill Color Transparencies • Transparency 7.24 Chapter Tests Levels A and B • Chapter 2 Tests • Chapter 2 Performance Assessment Standards Review Transparencies Progress Monitoring Assessment • Screening, diagnostic, and benchmark tests ● ExamView® Computer Test Bank CD-ROM ● ● ● S 7.6.e, 7.6.f When light strikes an object, the light can be reflected, transmitted, or absorbed. The color of an opaque object is the color of the light it reflects. When combined in equal amounts, the three primary colors of light produce white light. As pigments are added together, fewer colors of light are reflected and more are absorbed. Key Terms • transparent • translucent • opaque • primary colors • secondary color • complementary colors • pigments 3 Reflection and Refraction Key Concepts ● ● S 7.6.c, 7.6g The law of reflection states that the angle of incidence equals the angle of reflection. When light rays enter a medium at an angle, the change in speed causes the rays to bend, or change direction. An object’s position relative to the focal point determines whether a convex lens forms a real image or a virtual image. A concave lens can produce only virtual images because parallel light rays passing through the lens never meet. Key Terms • reflection • law of reflection • plane mirror • image • virtual image • concave mirror • optical axis • focal point • real image • convex mirror • refraction • lens • convex lens • concave lens ● Reinforce the chapter’s Big Idea by connecting it to important Key Concepts. For example, ask: Where in the eye is an image focused? (On the retina) Key Terms • cornea • pupil • iris • retina • rods • cones • nearsighted • farsighted 5 Optical Tools Key Concepts ● ● ● Key Key Terms • camera • telescope • refracting telescope • objective • eyepiece • reflecting telescope • microscope • electron microscope ent ssm Asse 1 pter Cha Diagnose and Remediate Also available on Standard Review and Assessment Items Standards-Targeted Resources Additional Resources S 7.5.g 4, 9, 19, 26 AA cvp-4153; RNG-A 46–48; RNG-B 35–36 Teaching Resources: Vocabulary Skill S 7.6.a 1, 2, 6, 11, 12, 13, 14, 21, 22, 29, 30, 31 AA cgp-5032; RNG-A 29–37; RNG-B 23–26 Teaching Resources: Key Terms S 7.6.b 4, 9, 19 AA cvp-4153; RNG-A 46–48; RNG-B 35–36 Student Edition in MP3 (English/Spanish) S 7.6.c 3, 8, 15, 18, 23 AA cgp-5042; RNG-A 41–44; RNG-B 31–33 Student Express with Interactive Textbook CD-ROM RNG-B Reading and Note Taking Guide, Level B TR Teaching Resources 70 S 7.6.d The camera lens camera focuses light to form a real, upside-down image on film in the back of the camera. Telescopes use combinations of lenses or mirrors to collect and focus light from distant objects. A microscope uses a combination of lenses to form enlarged images of tiny objects. AA Active Art RNG-A Reading and Note Taking Guide, Level A S 7.5.g, 7.6.b, 7.6.e When light from an object enters your eye, your eye sends a signal to your brain and you see the object. Concave lenses correct nearsightedness. Convex lenses correct farsightedness. 70 ◆ For: Self-Assessment Visit: PHSchool.com Web Code: cva-1020 Students can take a practice test online that is automatically scored. S 7.6.a Mechanical waves are produced when a source of energy causes a medium to vibrate. The basic properties of waves are amplitude, wavelength, frequency, and speed. The electromagnetic spectrum is made up of radio waves, infrared rays, visible light, ultraviolet rays, X-rays, and gamma rays. Key Terms • wave • energy • medium • crest • trough • amplitude • wavelength • frequency • hertz • electromagnetic radiation • electromagnetic spectrum • visible light Connect to Key Concepts ●