science
Grade6
Easy
Question
light is the form of ___________.
- Power
- Energy
- Force
- Pressure
Hint:
Light is a form of energy.
The correct answer is: Energy
- Light is a form of energy.
- It travels faster in a vacuum than in a dense medium.
- The speed of light decreases the density of the medium increase.
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In damped vibration, there is a decrease in _____.
In damped vibration, there is a decrease in _____.
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Decibels are denoted by _______.
Decibels are denoted by _______.
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The speed of sound in the air is ____.
The speed of sound in the air is ____.
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The wavelength of infrasound is _________.
The wavelength of infrasound is _________.
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The particles in the liquid are __________ packed.
The particles in the liquid are __________ packed.
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Sound travels faster in ___________.
Sound travels faster in ___________.
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Sounds of 15 Hz frequency are called _______.
Sounds of 15 Hz frequency are called _______.
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If a steel plate is vibrated, it will produce_______.
If a steel plate is vibrated, it will produce_______.
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20 Hz to 20000 Hz is called _______.
20 Hz to 20000 Hz is called _______.
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If particles are loosely packed, then the sound propagates ______.
If particles are loosely packed, then the sound propagates ______.
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If particles are closely packed, then the sound propagates ______.
If particles are closely packed, then the sound propagates ______.
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Speed of sound in air is _______.
Speed of sound in air is _______.
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If the frequency increases, the wavelength _________.
If the frequency increases, the wavelength _________.
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Vibrations ____________ after sometime.
Vibrations ____________ after sometime.
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Audible sound range is 0 Hz to 10 Hz.
Audible sound range is 0 Hz to 10 Hz.
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