QUESTION 1 Q1 Choose one - 5 points During Physics ciass,]ack sits in the front row and is 2 meters from the lecturing professor.Jim is sitting in the back ofthe class so is 8 meters away from the professor. How does the intensity ofsound that reachesjim compare tojack? O The intensity of sound reachingjim's ears is 1f2 that of the sound that reachesJack's. O The intensity of sound reachingjim's ears is 1f4 that of the sound that reachesJack's. O The intensity of sound reachingjim's ears is 1f6 that of the sound that reachesJack's. O The intensity of sound reachingjim's ears is W16 that ofthe sound that reachesjack's. QUESTION 2 Q2 Choose one - 5 points When light from the sun hits a dry rough road the light is reected in many different directions. This is an example of wh at? O Dispersion O Selective reection O Selective transmission 0 Diffuse reection QUESTION 3 Q3 Choose one 5 points Sound canceling headphones work by picking up ambient sounds and replaying them in the headphones out of phase with the original sounds. and thus reducing the amplitude of the sound. This is an example of what? 0 Constructive interference O Destructive interference O Dispersion O The cheerleader effect QUESTION 4 Q4 Choose one - 5 points Which of the following is an example of dispersion? O Mirages produced when light is bent as it travels from hot to cold air 0 Rainbows produced bya prism O A racecar sounding higher pitched as it approaches an observer 0 Electrons easily moving inside ofa conductor QUESTION 5 QB Choose one - 5 points Which principle is responsible for a blue shirt looking blue? 0 Selective reection O Dispersion O Refraction O Selective transmission QUESTION 6 Q6 Choose one - 5 points While standing in the ocean you determine that a wave hits your legs every 5 seconds. What is the frequency of the waves? 05Hz ()2.st 0in OOQHZ GROUP? Q7 Group - 4 questions A 5 volt battery is connected to 5 resistors with varying resistance as shown in the diagram below. 2!) 50 5\" so 70 QUESTION 7.1 7A Response - 12 points What is the total resistance of the circuit? (Hint: combo circuits must be solved in parts) Your response... 0 words ATTACH FlLEtS) (5 DRAG & DROP Max SIZE 4.0 GB QUESTION 7.2 TB Response - 8 points What is the total current of the circuit? Your response... 0 words QUESTION 7.3 '/ 7C Response - 8 points The (urrent going through the 2 Q resistor is the same as the total current ofthe circuit. What is the voltage across just the 2 Q resistor? Your response... 0 words ATTACH FILEIS) @ DRAG & DROP Max SIZEl 4.0 GB QUESTION 7.4 7D Response - 8 points How much power is being used by the 2 resistor? ll EEH HEB-EDD Your response... 0 words A'lTACH FILEIS) 5 DRAG & DROP Max size 4.0 GB GROUP 8 \\/ Q8 Group - 4 questions Some unwise individuals decide it would be a good idea to go shing with a rie equipped with a laser sight. The index of refraction is 1.0 for air and 1.3 for water. The cops are soon Called. QUESTION 8.1 BA Response - 8 points If the laser beam hits the water with an angle of incidence of 22 degrees, what will be the angle of reection? Your response... 0 words QUESTION 8.2 SE Response - 8 points What is the angle of refraction? Your response... 0 words ATTACH FILES) @ DRAG & DROP Max size 4.0 GB QUESTION 8.3 SE Response 8 points If the speed of sound in air is 340mfs and the gun produces a hang with a frequency of IUOOHZ, what is the wavelength ofthe sound wave in the air? l Your response... 0 words A'I'I'ACH FILE[S) ($5 DRAG & DROP Max size 4.0 GB QUESTION 8.4 8D Response - 10 points The cops are driving straight toward the \"shermen\" at 25ml: while they are standing still "shing". What is the frequency of the sound heard by the cops? l Your response... 0 words