Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
S4P1 Students will investigate the nature of light using tools such as mirrors, lenses, and prisms. c. Identify the physical attributes of a convex lens, a concave lens, and a prism and where each is used. 1. A lens that is thicker at the edges than in the middle 2. Skinny middle 3. Think Concave caves in! 4. Objects appear smaller 5. Light bends toward the thick part Concave mirrors are used as reflectors in torches, headlights of cars, scooters etc. Concave mirrors are used by dentists to see enlarged images of teeth. Concave mirrors are used by doctors for examining eyes, ears, nose and throat. 1. A lens that is thicker in the middle 2. Light bends toward the thick part (middle) 3. Makes objects look larger Convex mirrors are used as side mirrors in cars, scooters etc. Convex mirror has a wider view to help drivers to see the traffic behind them. An object that causes light waves to change direction. Design an investigation to determine what happens to light as it passes through a convex lens. Describe the results. A convex lens causes light to converge, or focus, producing an image that is smaller than the original object. Design an investigation to determine what happens to light as it passes through a concave lens. Describe the results. A concave lens causes light to diverge, or spread out, producing a larger image than the original. Identify some common optical tools, and describe whether each has lenses, mirrors, and/or prisms in it. These should include: • • • • • eyeglasses flashlights cameras binoculars microscopes No correction needed a. Normal eye b. Myopia (nearsightedness) c. Hyperopia (farsightedness) Corrected with concave lens Corrected with convex lens Analyze the effects of a prism on white light and describe why this occurs. Explain why a rainbow occurs.