science
Grade6
Easy
Question
Light can travel through ______
- Vacuum
- Air
- Water
- All of the above
Hint:
Light can travel through empty spaces.
The correct answer is: All of the above
- Light can travel through empty spaces, vacuum, air, and water.
- It does not need any matter to travel.
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The energy particles in the light are called ________
The energy particles in the light are called ________
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light is the form of ___________.
light is the form of ___________.
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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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