McGraw-Hill Science 2000, Texas Edition TAKS Practice Test. Grade 5, Chapter 6 Light. Name. Date

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1 McGraw-Hill Science 2000, Texas Edition TKS Practice Test Grade 5, hapter 6 Light Name ate

2 1 What is light? force type of sound form of energy stream of high-speed electrons 2 What do reflection and refraction have in common? In both processes, a light ray changes direction. oth processes change the speed that a light ray travels. Each process usually involves mirrors. Each process usually involves lenses. 3 How do water droplets in the air form a rainbow? Each droplet reflects a unique color. Each droplet absorbs a unique color. Each droplet refracts a unique color. The droplets refract sunlight, which spreads out the colors. The colors reflect off the back of the droplets. 4 Three of these tools refract light to form an image. Which tool does not do this? amera Hand lens Telescope onvex mirror Macmillan/McGraw-Hill TKS Science Grade 5, hapter 6 1

3 Use the illustration and your knowledge of science to answer Questions 5 and 6. The Electromagnetic Spectrum Radio Waves Microwaves Infrared Light Visible Light UV Light X-Rays Gamma Rays 5 How do radio waves compare to visible light? Radio waves have longer wavelengths than visible light. Radio waves have shorter wavelengths than visible light. Radio waves travel faster than visible light. Radio waves travel slower than visible light. 6 Which of type of radiation has the greatest penetrating power? Radio waves Infrared light UV light Gamma rays Macmillan/McGraw-Hill TKS Science Grade 5, hapter 6 2

4 Use the illustrations and your knowledge of science to answer Questions 7 to 9. Macmillan/McGraw-Hill TKS Science Grade 5, hapter 6 3

5 7 Which illustration shows a concave mirror? Illustration Illustration Illustration Illustration 8 Which illustration shows a convex lens? Illustration Illustration Illustration Illustration 9 In Illustration, what kind of surface are the light rays bouncing off? flat mirror convex mirror concave lens rough surface, such as a piece of cardboard 10 Why does a pencil appear to bend when it is placed in water? Water reflects light from the pencil. Water refracts light from the pencil. Water absorbs light from the pencil. The water acts as a convex mirror that bends the image of the pencil. Macmillan/McGraw-Hill TKS Science Grade 5, hapter 6 4

6 Use the text and your knowledge of science to answer Questions 11 and 12. listener sits in the very back row of an opera house. She uses binoculars to watch the singers. She observes that she sees the singers move their mouths a brief moment before she hears what they sing. 11 What fact about sound and light explains the listener s observation? Sound travels much slower than light. Sound travels much faster than light. Sound travels in many directions, light travels in one direction only. Sound travels in waves, light travels in particles. 12 To see and hear the singers at the same time, what should the listener do? Use a more powerful binoculars. Not use the binoculars. Use a hearing aid, which makes soft sounds louder. Move closer to the singers. 13 The label on a bottle of lotion reads Protects from harmful UV light. You might use this lotion when you. visit the doctor or dentist to get an X-ray go to the beach on a sunny day are bitten by a mosquito or other insect study under a fluorescent lamp Macmillan/McGraw-Hill TKS Science Grade 5, hapter 6 5

7 14 What happens when white light passes through a red filter, such as a sheet of red cellophane? The filter reflects red light and absorbs other colors. The filter absorbs red light and reflects other colors. The filter allows red light to pass through and absorbs other colors. The filter refracts red light only. Macmillan/McGraw-Hill TKS Science Grade 5, hapter 6 6

8 NSWER KEY and ORRELTIONS: Question nswer TKS McGraw-Hill Science Grade 5 textbook p pp. 241, p p p p p p p p p , 5.3 p p p. 266 Macmillan/McGraw-Hill TKS Science Grade 5, hapter 6 7

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