Daily Concept Quiz
Daily Concept Quiz
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 1 As a mechanical wave moves from one point in space to another, the elements of the medium A) travel along with the wave. B) don’t move. C) move back and forth or up and down as the wave travels through. 2 A wave is set in motion beneath the surface of a tank of water. Which kind of wave must this be? A) Both transverse and longitudinal B) Only transverse C) Only longitudinal D) Can’t tell 3 Two sound waves travel in air. The first wave has a higher frequency than the second. Which wave has a longer wavelength? A) The first wave B) The second wave C) The two wavelengths are the same 4 When a standing wave is produced in a string A) each element of the string stops moving and a wave form is produced. B) some elements of the string stop moving while others continue to move. C) all elements of the string continue to move. 5 About how far will sound travel in 1 second? A) The length of a football field B) The length of 3 football fields C) The length of 10 football fields D) The length of 100 football fields 6 How much stronger is a 40 dB sound than a 20 dB sound? A) Just as strong B) Twice as strong C) 10 times stronger D) 100 times stronger 7 Red light has a higher frequency than blue light. If your best friend runs toward you with a flashlight, what happens? A) The light is noticeably bluer. B) The light is noticeably redder. C) The light is bluer, but the effect is too small to notice. D) The light is redder, but the effect is too small to notice. 8 While sound and light are both waves, A) both need some kind of medium to travel through (e.g. sound can use air and light can use glass). B) neither need a medium to travel through. C) sound needs a medium but light doesn’t. D) light needs a medium but sound doesn’t. 9 Which kind of electromagnetic wave has a wavelength of 1 cm? A) X rays B) Visible light C) Radio waves D) Microwaves 10 Light traveling in a slow medium passes into a medium where it moves faster. Which ray in the picture matches the direction of the ray as it enters into the second medium? (3.0K) A) Ray A B) Ray B C) Ray C D) Ray D 11 If white light is incident on a prism, which color travels the slowest? A) Red B) Yellow C) Blue D) All colors travel at the same speed 12 If blue light falls on a red object, what color does the object appear to be? A) Red B) Blue C) White D) Black 13 Why is the sky blue? A) light from the sun is dispersed by water drops in the air and the blue light bends toward the surface of the earth B) light from the sun is scattered off molecules and dust in the air and the blue side scatters better than the red side. C) light from the sun is scattered off molecules and dust in the air and the red side scatters better than the blue side. 14 When you look at the light produced by a rainbow A) all the yellow light that you see has the same frequency. B) some of the yellow light that you see can have different frequency. C) you don’t actually “see” yellow light. 15 Two houses sit about 10 m apart. Which kind of EM radiation most easily bends between the openings of the two houses? A) X rays B) Ultraviolet C) Red light D) Infrared E) Radio waves 16 The door to your classroom is open and is about 1 m wide. Suppose you hear a sound down the hallway outside the door. Even though sound and light are waves, you can hear what happens down the hallway but not see it because A) sound and light both have wavelengths smaller than the width of the door. B) sound and light both have wavelengths bigger than the width of the door. C) sound has a wavelength smaller than the width of the door while the wavelength of the light is bigger. D) sound has a wavelength bigger than the width of the door while the wavelength of the light is smaller.

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