Chapter 3 Building Stamina

What happens to light when it moves from air to water? light refracts light speeds up light travels in a straight line light bounces backward Which statement about light is false? light waves cannot travel through outer space a wavelength is the distance between two troughs light waves slow down as they pass through glass visible light is made up of many wavelengths When light is reflected, it - passes through an object is absorbed by an object bounces off an object heats up an object Refraction through a prism - causes light waves to speed up changes red light to white light bounces light away from the prism causes light to bend Which color in the list below has the longest wavelength? yellow green violet blue A beach umbrella blocks most sunlight but lets some rays through. These qualities make the umbrella - transparent translucent opaque reflective Look at the drawing below. Imagine an apple very close to the mirror. What would the image of the apple look like in the mirror? the image would be right side up and smaller than the apple the image would be upside down and the same size as the apple the image would be upside down and larger than the apple the image would be right side up and larger than the apple Light travels fastest - in a vacuum through air through water through a solid Describe what happens when light rays hit a pair of blue jeans. the jeans absorb and reflect light the jeans transmit light the leans reflect all light the jeans only absorb blue light In a convex mirror, the reflection - is always right side up and smaller than the original object can be either upside down or right side up is sometimes larger and sometimes smaller than the original object is always right side up and larger than the original object Which scientist used a prism to observe that sunlight is made of all colors int eh color spectrum? Galileo Galalei Roger Bacon Sir Isaac Newton Aristotle Which of the following statements about the color spectrum is nottrue? red light has the longest wavelength and violet light has the shortest wavelength violet light bends the most when white light passes through a prism green light has a longer wavelength than orange light the color spectrum contains all wavelengths of visible light The mirror shown below is useful for - applying makeup trying on clothing watching for shoplifters starting a campfire Dutch scientist Christian Huygens developed a new way to grind lenses. His lenses helped him see the rings of Saturn using a - microscope telescope camera obscura spectroscope What is the highest point of a light wave called? crest trough wavelength frequency How does a corrective lens help to improve vision? the lens spreads light out so more light floods the eye the lens refracts light to focus an image closer to the front of the eye the lens bends light to focus an image on the back of the eye the lens absorbs light so objects are easier to see A white piece of paper - is transparent reflects all colors refracts white light has no color The image of a dog in a flat mirror looks - larger than the dog smaller than the dog wider than the dog just like the dog How does light behave when it hits a convex mirror? it is absorbed by the mirror it becomes concentrated it is refracted through the mirror it bounces outward Why does white light change to a rainbow of colors when it passes through a prism? the different wavelengths bend differently and separate into colors Colors reflect off the glass of the prism the different wavelengths speed up and separate into colors light waves gain energy and break into different colors