Light and Sound Study Guide

8. Write an object for each word:absorb ______black objects__________________transmits ____window______________________reflects ______smooth shiny objects___________refracts __magnifying lens, water with a pencil in a cup_____9. List the colors that make white light. All colors in the visible spectrum.10. How are light and sound alike? Different?Same-both travel in waves.Different-light travels faster than sound.11. What happens to the pitch when the frequency increases? Decreases?Increases it becomes higher. Decreases it becomes lower.12. What is a sound medium?A sound medium is an object that sound passes through that vibrates and transfersthe sound energy. Solids, liquids, and gases are sound mediums. Solids are best.13. Define each of the following words and give an example.Transparent: light passes through easily such as air and clean smooth glass.Translucent: some light passes through such as frosted glass.Opaque: No light passes through such as brick and wood.14. Why can’t sound travel through space?Sound needs a substance to conduct sound energy in order for sound to travel.15. A reflection of sound is known as _____an echo________.