Physics
Grade-8
Easy
Question
When a speaker vibrates, it sets its neighboring particles into ____.
- Motion
- Vibration
- Rest
- Circulation motion
Hint:
When a speaker vibrates, it sets its neighboring particles into vibration.
The correct answer is: Vibration
- The vibrating speaker causes neighboring particles to vibrate, which in turn causes other nearby particles to vibrate.
- These vibrating particles make up a sound wave.
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We are able to hear sound originating from various objects as ____.
We are able to hear sound originating from various objects as ____.
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One end of a slinky lying on a table is fixed to a rigid support. The free end of the slinky is pushed back and forth. As a result, alternate compressions and rarefactions are observed. The former and the latter refer to the loops of the slinky to be ____ and ____ respectively.
One end of a slinky lying on a table is fixed to a rigid support. The free end of the slinky is pushed back and forth. As a result, alternate compressions and rarefactions are observed. The former and the latter refer to the loops of the slinky to be ____ and ____ respectively.
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Compressions are the regions in which the ____ is ____.
Compressions are the regions in which the ____ is ____.
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The particles of the medium ____ when a sound wave moves through it.
The particles of the medium ____ when a sound wave moves through it.
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In a particular medium the vibration of an object does not produce a sound. The medium is ____.
In a particular medium the vibration of an object does not produce a sound. The medium is ____.
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Sound is generated when an object ____ and is propagated when it is in a ____.
Sound is generated when an object ____ and is propagated when it is in a ____.
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Rarefactions are the regions where the ____ is low.
Rarefactions are the regions where the ____ is low.
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The particles of the medium do not actually move to carry the sound wave from one place to another. They simply vibrate about their equilibrium positions. This statement is ____.
The particles of the medium do not actually move to carry the sound wave from one place to another. They simply vibrate about their equilibrium positions. This statement is ____.
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Propagation of sound can be visualized as the propagation of ____ variations.
Propagation of sound can be visualized as the propagation of ____ variations.
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In the options given below, if ‘C’ means compression and ‘R’ means rarefaction figure out which of the patterns represent the pattern of particles of the medium through which sound propagates.
In the options given below, if ‘C’ means compression and ‘R’ means rarefaction figure out which of the patterns represent the pattern of particles of the medium through which sound propagates.
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The particles of the medium move from the origin of sound to the destination to carry it. This statement is ____.
The particles of the medium move from the origin of sound to the destination to carry it. This statement is ____.
PhysicsGrade-8
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Sound waves are produced from an object which ____.
Sound waves are produced from an object which ____.
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Each vibration creates __ compressions and ___ rarefactions.
Each vibration creates __ compressions and ___ rarefactions.
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Sound waves are ________ waves.
Sound waves are ________ waves.
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Compressions are the regions where the ____ is high.
Compressions are the regions where the ____ is high.
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