Show:
Points on Wave
Sound
Light
Wavelength/Amplitude/Frequency
Conceptual
100
Two pulses, A and B, travel toward each other along the same rope, as shown on the document When the centers of the two pulses meet point X, the amplitude at the center of the resultant pulse will be (1) +1 unit (2) +2 units (3) 0 (4) -1 unit
(1) +1 unit
100
A train sounds a whistle of constant frequency as it leaves the train station. Compared to the sound emitted by the whistle, the sound that the passengers standing on the platform hear has a frequency that is (1) lower, because the sound-wave fronts reach the platform at a frequency lower than the frequency at which they are produced (2) lower, because the sound-waves travel more slowly in the still air above the platform than in the rushing air near the train (3) higher, because the sound-wave fronts reach the platform at a frequency higher than the frequency at which they are produced (4) higher, because the sound-waves travel faster in the still air above the platform than in the rushing air near the train
1)
100
Determine the angle of incidence of the light ray in air.
55 degrees
100
Which phenomena occurs when an object absorbs wave energy that matches the object's natural frequency? 1) reflection 2) diffraction 3) resonance 4) interference
3)
100
The spreading of a wave into the region behind an obstruction is called 1) diffraction 2) absorption 3) reflection 4)refraction
1)
200
The diagram below represents two waves of equal amplitude and frequency approaching point P as they move through the same medium. As the two waves pass through each other, the medium at point P will 1) vibrate up and down 2) vibrate left and right 3) vibrate into and out of the page 4) remain absolutely stationary
4) remain absolutely stationary
200
List two properties that a singer’s voice must have in order to shatter a glass.
Frequency, Amplitude
200
A ray of monochromatic light with a frequency of 5.09 × 1014 hertz is transmitted through four different media, listed below. a- corn oil b- ethyl alcohol c- flint glass d- water Rank the four media from the one through which the light travels at the slowest speed to the one through which the light travels at the fastest speed. (Use the letters in front of each medium to indicate your answer.)
C A B D
200
A wave is diffracted as it passes through an opening in a barrier. The amount of diffraction that the wave undergoes depends on both the (1) amplitude and frequency of the incident wave (2) wavelength and speed of the incident wave (3) wavelength of the incident wave and the size of the opening (4) amplitude of the incident wave and the size of the opening
(3)
200
Which wave characteristic is the same for all types of electromagnetic radiation traveling in a vacuum? (A) speed (C) period (B) wavelength (D) frequency
A) speed
300
The diagram shows two pulses traveling toward each other in a uniform medium. Which diagram best represents the medium when the pulses meet at point X? 1) 2) 3) 4)
1)
300
Which type of wave is emitted from a music speaker? 1) Transverse 2) Longitudinal 3) Circular 4) Electromagnetic
2) Longitudinal
300
Compared to a photon of red light, a photon of blue light has a (1) greater energy (2) longer wavelength (3) smaller momentum (4) lower frequency
1)
300
A ray of monochromatic light (f = 5.09 × 1014 hertz) in air is incident at an angle of 30° on a boundary with corn oil. What is the angle of refraction, to the nearest degree, for this light ray in the corn oil? (1) 6° (2) 20° (3) 30° (4) 47°
(2)
300
In a vacuum, all electromagnetic waves have the same: 1) speed 2) phase 3) frequency 4) wavelength
1) speed
400
The diagram below shows two pulses of equal amplitude, A, approaching point P along a uniform string. When the two pulses meet at P, the vertical displacement of the string at P will be 1) A 2) 2A 3) 0 4) 0.5 A
3)
400
The microphone is moved to a new fixed location 0.50 meter in front of the speaker. Compared to the sound waves detected at the 1.00-meter position, the sound waves detected at the 0.50-meter position have a different (1) wave speed (3) wavelength (2) frequency (4) amplitude
4)
400
The sine of angle theta x is (1) 0.333 (2) 0.500 (3) 0.707 (4) 0.886
1)
400
Which wave diagram has both wavelength (λ) and amplitude (A) labeled correctly?
3)
400
A source of waves and an observer are moving relative to each other. The observer will detect a steadily increasing frequency if (1) he moves toward the source at a constant speed (2) the source moves away from him at a constant speed (3) he accelerates toward the source (4) the source accelerates away from him
3)
500
The diagram below shows a standing wave. Point A on the standing wave is (1) a node resulting from constructive interference (2) a node resulting from destructive interference (3) an antinode resulting from constructive interference (4) an antinode resulting from destructive interference
2)
500
The microphone is moved at constant speed from the 0.50-meter position back to its original position 1.00 meter from the speaker. Compared to the 1,000.-hertz frequency emitted by the speaker, the frequency detected by the moving microphone is (1) lower (2) higher (3) the same
1)
500
Light travels slowest in (1) air, only (2) Lucite, only (3) medium Y, only (4) air, Lucite, and medium Y
3)
500
If the speed of a wave doubles as it passes from shallow water into deeper water, its wavelength will be (1) unchanged (2) doubled (3) halved (4) quadrupled
2)
500
The energy of a water wave is most closely related to its (1) frequency (2) wavelength (3) period (4) amplitude
(4)