Physics 7B: Characteristics of Waves
Quiz by Sherry Felux-Bell
High School
Physics (2017)
Texas Essential Knowledge and Skills (TEKS)
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23 questions
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- Q1Calculate the speed of a periodic wave that has a wavelength of 2.0 m and a frequency of 3.0 Hz. (V=fλ)5.0 m/s2.0 m/s12.0 m/s6.0 m/s120s112.39.c.7.b
- Q2As the amplitude of a mechanical wave increases, which of the following quantities increases?EnergyFrequencySpeedWavelength120s112.39.c.7.b
- Q3A student examined the motion of waves on a Slinky® by oscillating a spring along the floor. The student took a snapshot of the motion as shown below. What is the wavelength of the wave according to the Displacement v. Length graph above?0.25 m0.5 m2.0 m1.0 m120s112.39.c.7.b
- Q4A student examined the motion of waves on a Slinky® by oscillating a spring along the floor. The student took a snapshot of the motion as shown below: Refer to the graph shown above. The student oscillates the spring 4 times per second. What is the velocity of the wave? (V=fλ) Hint: Solve for wavelength from the graph first.2.0 m/s0.5 m/s4.0 m/s1.0 m/s120s112.39.c.7.b
- Q5Which of the following properties of a wave cannot be changed by reducing wave velocity?FrequencyAmplitudeWavelengthPeriod120s112.39.c.7.b
- Q6A student used a rope tied to a wall and formed a standing wave, as shown in Figure 1. The student then produced the second standing wave, as shown in Figure 2. According to the information and diagram shown above, which of the following wave properties increased?WavelengthPeriodAmplitudeFrequency120s112.39.c.7.b
- Q7A student creates a graph of position v. time for the height of a floating buoy as ocean waves go by. What is the amplitude of the buoy based on the graph above?2.0 m5.0 mThe amplitude varies depending on the time.2.5 m120s112.39.c.7.b
- Q8A student creates a graph of position v. time for the height of a floating buoy as ocean waves go by. Refer to the graph above. At what time will the buoy be at a crest?1.0 s1.5 s0.5 s0 s120s112.39.c.7.b
- Q9A particular light source gives off light waves with a measured wavelength of 2.0 X 10^-7 m. What is the frequency of the light source? (3E8 m/s = V) Where V=fλNot enough information6.0 X 10^11 Hz1.5 X 10^15 Hz6.67 X 10^-15 Hz120s112.39.c.7.b
- Q10What electromagnetic wave travels the fastest?MicrowaveX-rayUltravioletAll travel at the speed of light ‘c’ (V=3E8 m/s)120s112.39.c.7.b
- Q11An astronomer is star gazing on the night when there is no Moon. He sees two blue stars in the sky, and one star is much brighter than the other. Which property of electromagnetic waves allows the astronomer to determine the brightness of a star?VelocityAmplitudeWavelengthFrequency120s112.39.c.7.b
- Q12How many waves are visible in this picture?4513120s112.39.c.7.b
- Q13How long did it take for all of the waves to travel to the end of the equilibrium line shown?3 sec5 sec1 sec4 sec120s112.39.c.7.b
- Q14Which of these waves has the highest frequency?321120s112.39.c.7.b
- Q15These waves differ in their ___.Amplitudefrequencywavelengthperiod120s112.39.c.7.b
