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- 1. Multiple ChoiceElectromagnetic energy travels in waves. When we describe electromagnetic waves, we often talk about the wave’s length and frequency. Which of these statements accurately describes the relationship between the wavelength and frequency of an electromagnetic wave?If wavelength increases, frequency increases.If frequency decreases, wavelength increases.If frequency remains constant, wavelength increases.If wavelength remains constant, frequency increases.
- 2. Multiple ChoiceLatif wakes up one morning and sees that it is foggy outside. Which term best describes the fog he sees?opaquereflectivetranslucenttransparent
- 3. Multiple ChoiceHeather puts a straw into a glass of water. She notices that the straw appears to be broken when she looks through the glass and the water from the side. Which term bestexplains why the straw looks like it is broken?absorptionrefractionscatteringtransmission
- 4. Multiple Choice
Calvin shines a thin beam of light onto a material, and the light refracts. Which diagram best shows what happens to the light?Picture # 1Picture # 2Picture # 3None of the Above - 5. Multiple ChoiceHabib looks around his classroom at different objects. Which object reflects almost all of the light that strikes it?a white poster boardclear window classa red book coverblack construction paper
- 6. Multiple ChoiceDuring a thunderstorm, Sanjay saw lightning and then heard thunder 5 s later. Why does he see the lightning before he hears the thunder?He would have seen the lightning and heard the thunder at the same time.Sound travels faster than light.Light travels faster than sound.There is no reason.
- 7. Multiple ChoiceRed light waves and yellow light waves travel through air and strike the surface of glass. Only the yellow light waves travel through the glass as shown in the figure below. Which of these phrases best describes what the glass does?reflects red lightabsorbs yellow lighttransmits yellow lighttransmits red light
- 8. Multiple ChoiceA dolphin makes a noise underwater that is too high-pitched for humans to hear. What type of wave is this?waterelectromagneticmechanicalmicrowave
- 9. Multiple ChoiceIn which of these situations would light slow down?from glass to airfrom ice to waterfrom plastic to airfrom a vacuum to air
- 10. Multiple ChoiceSunlight contains all visible wavelengths of light. Each wavelength is a different color. When sunlight passes into and out of a raindrop, the light rays bend. Which color of light bends the most?blueorangegreenred
- 11. Multiple ChoiceLight refracts when traveling from air into glass because lighttravels at the same speed in air and in glass.frequency is greater in air than in glass.frequency is greater in glass than in air.travels slower in glass than in air.
- 12. Multiple ChoiceWhich object would a sound wave travel the fastest through?brick wallpooloxygenlake
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