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CRCT Review Energy, Waves, Sound, & Light Convection currents do NOT take place in _________________. • • • • A) liquids B) gases C) solids D) the ocean The transfer of heat by collision of atoms in a solid is… • • • • A) conduction B) convection C) radiation D) Thermal energy You and your friends are telling ghost stories around a campfire. What type of heat transfer are you using? • • • • A) convection B) conduction C) radiation D) insulation In a vacuum (open space), heat transfer occurs by • • • • A) Conduction B) Convection C) Radiation D) Thermal Energy On Earth, cool air circulates to warm regions and warm air circulates to cooler regions. What type of heat transfer does this describe? • • • • A) conduction B) Convection C) Radiation D) Fahrenheit Electricity is a type of ______. • • • • A) energy B) machine C) matter D) light Waves transfer _____. • • • • A) matter B) energy C) particles D) water Long wavelength makes _____ frequency. • • • • A) high B) low C) zero D) fast According to Doppler Dan, if a sound is moving toward you then the pitch is ___________. • • • • A) Low B) High C) loud D) soft According to Doppler Dan, if a sound is moving away from you then the pitch is ___________. • • • • A) low B) high C) loud D) soft The wave property that is related to the height of a wave is the _____. • • • • A) wavelength B) amplitude C) frequency D) wave speed Waves that don’t require a medium are __________. • • • • A) longitudinal waves B) electromagnetic waves C) surface waves D) mechanical waves When you look in the mirror, what type of light behavior are you observing? • • • • A) refraction B) reflection C) diffraction D) interference How does a prism make a rainbow? • • • • A) refraction B) reflection C) diffraction D) interference You walk down a dark hallway and suddenly a light spills out of an open doorway. What light wave behavior have you experienced? • • • • A) Reflection B) Refraction C) Interference D) Diffraction When light is refracted, the visible color spectrum is displayed. What is the acronym we use to remember the colors? • • • • A) PEMDAS B) ROYGBIV C) MVEMJSUN D) SONAR Light waves are more than just the light we see. What is another kind of light wave that we DON’T see? • • • • A) red B) sun C) radio D) blue Hand Lens Problem Solving • Teachers sometimes use overhead projectors to show transparencies on a screen. What type of lens does an overhead projector use? A) Convex B) Concave C) Flat-plane D)eye How do electromagnetic waves emitted by the sun heat the Earth? • • • • A) conduction B) convection C) radiation D) insulation What type of wave interaction is an echo? • • • • A) reflection B) refraction C) diffraction D) interference What are the three types of mirrors and lenses? • • • • A) cone, rectangle, oval B) curved, flat, round C) concave, convex, plane D) square, concave, convex If you are farsighted, you cannot see _____ and you need a ____ lens. • • • • A) far away, concave B) far away, convex C) close-up, concave D) close-up, convex If you are nearsighted, you cannot see _____ and you need a ____ lens. • • • • A) far away, convex B) far away, concave C) far away, convex D) far away, concave