Physics
Grade-8
Easy
Question
Which of the following sounds shows the lowest pitch?
Hint:
Low frequency causes low-pitch sound
The correct answer is:
- The total number of waves produced in one second is called the frequency of the wave.
- Low-pitch sound corresponds to a low-frequency sound wave.
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Given below are the sound wave forms of the voices of a boy and a girl. The amplitude of the boy’s voice is ____ the amplitude of the girl’s voice.
Given below are the sound wave forms of the voices of a boy and a girl. The amplitude of the boy’s voice is ____ the amplitude of the girl’s voice.
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The time period of the sound wave whose frequency is 0.5 Hz is ____s.
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The frequency of a sound wave whose time period is 0.01s is ___ Hz.
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There are ___ complete oscillations are shown in the graph below.
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The wavelength of the sound wave shown below is ____ mm.
The wavelength of the sound wave shown below is ____ mm.
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The frequency of a sound wave whose time period is 0.02s is ___ Hz.
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Match the following:
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Which of the following diagrams show one complete oscillation inside the red box?
Which of the following diagrams show one complete oscillation inside the red box?
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The propagation of sound waves can be graphically represented by plotting _____ against _____.
The propagation of sound waves can be graphically represented by plotting _____ against _____.
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The lower portion of the graphical representation of the wave represent the ____.
The lower portion of the graphical representation of the wave represent the ____.
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The SI unit of time period is ____.
The SI unit of time period is ____.
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Which points represent the compressions in the graphical wave representation shown?
Which points represent the compressions in the graphical wave representation shown?
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