Waves And Their Phenomena
Waves are some of the prettiest phenomena in physics, occurring as a result of wind blowing on the surface of an area of water, creating a surface wave on the water. What can you tell us about them?
- 1.What is the speed of a radio wave in a vacuum?
- A.
0 m/s
- B.
3.31 x 10^2 m/s
- C.
1.13 x 10^3 m/s
- D.
3.00 x 10^2 m/s
- 2.If the amplitude of a wave in a rope is doubled, the speed of the wave in the rope will
- A.
Decrease
- B.
Increase
- C.
Remain the same
- 3.A change in the speed of a wave as it enters a new medium produces a change in
- A.
Frequency
- B.
Period
- C.
Wavelength
- D.
Phase
- 4.A tuning fork oscillates with a frequency of 256 hertz after being struck by a rubber hammer. Which phrase best describes the sound waves produced by this oscillating tuning fork?
- A.
Electromagnetic waves that require no medium for transmission
- B.
Electromagnetic waves that require a medium for transmission
- C.
Mechanical waves that require no medium for transmission
- D.
Mechanical waves that require a medium for transmission
- 5.In a vacuum, all electromagnetic waves have the same
- A.
Wavelength
- B.
Frequency
- C.
Speed
- D.
Amplitude
- 6.Waves pass through a 10 centimeter opening in a barrier without being diffracted. This observation provides evidence that the wavelength of the waves is
- A.
Much shorter than 10 cm
- B.
Equal to 10 cm
- C.
Longer than 10 cm, but short than 20 cm
- D.
Longer than 20 cm
- 7.A radar gun can determine the speed of a moving automobile by measuring the difference in frequency between emitted and reflected radar waves. this process illustrates
- A.
Resonance
- B.
The Doppler effect
- C.
Diffraction
- D.
Refraction
- 8.As a sound wave passes from water, where the speed is 1.49 x 10^3 m/s, into air, the wave's speed
- A.
Decreases and its frequency remains the same
- B.
Increases and its frequency remains the same
- C.
Remains the same and its frequency decreases
- D.
Remains the same and its frequency increases
- 9.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
- A.
Amplitude and frequency of the incident wave
- B.
Wavelength and speed of the incident wave
- C.
Wavelength of the incident wave and the size of the opening
- D.
Amplitude of the incident wave and the size of the opening
- 10.A source of waves and an observer are moving relative to each other. the observer will detect a steadily increasing frequency if
- A.
He moves toward the source at a constant speed
- B.
The source moves away from him at a constant speed
- C.
He accelerates toward the source
- D.
The source accelerates away from him
- 11.Which pair of terms best describes light waves traveling from the Sun to Earth?
- A.
Electromagnetic and transverse
- B.
Electromagnetic and longitudinal
- C.
Mechanical and transverse
- D.
Mechnical and longitudinal
- 12.Radio waves diffract around buildings more than light waves do because, compared to light waves, radio waves
- A.
Move faster
- B.
Move slower
- C.
Have a high frequency
- D.
Have a longer wavelength
- 13.The energy of a sound wave is most closely related to its
- A.
Period
- B.
Amplitude
- C.
Frequency
- D.
Wavelength
- 14.A girl on a swing may increase the amplitude of the swing's oscillations if she moves her legs at the natural frequency of the swing. This is an example of
- A.
The Doppler effect
- B.
Destructive interference
- C.
Wave transmission
- D.
Resonance
- 15.An earthquake wave is traveling from west to east through rock. If the particles of the rock are vibrating in a north-south direction, the wave must be classified as
- A.
Transverse
- B.
Longitudinal
- C.
A microwave
- D.
A radio wave
- 16.Which type of wave requires a material medium through which to travel?
- A.
Electromagnetic
- B.
Infared
- C.
Sound
- D.
Radio
- 17.A microwave and an x ray are traveling in a vacuum. Compared to the wavelength and period of the microwave, the x ray has a wavelength that is
- A.
Longer and a period that is shorter
- B.
Longer and a period that is longer
- C.
Shorter and a period that longer
- D.
Shorter and a period that is shorter
- 18.Compared to the speed of microwaves in a vacuum, the speed of x rays in a vacuum is
- A.
Less
- B.
Greater
- C.
The same
Questions: 12 | Attempts: 20809 | Last updated: Mar 22, 2022
-
Sample QuestionIn the animation, what type of wave is shown?
Questions: 15 | Attempts: 8181 | Last updated: Mar 22, 2022
-
Sample QuestionThe wind blows on the water, passing it's energy to the water. As this energypasses through the water, in what way do the water molecules move?
Questions: 16 | Attempts: 5924 | Last updated: Mar 22, 2022
-
Sample QuestionIn this animation, what type of wave is shown?
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