science
Grade6
Easy
Question
Sound cannot travel through _________
- Air
- Water
- Solid
- Vacuum
Hint:
Mechanical waves need a strong medium to travel
The correct answer is: Vacuum
- Sound cannot travel through a vacuum.
- Because there is no matter for the vibrations.
- Sound needs a material medium for its propagation like a solid, liquid, or gas to travel.
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Sound requires _______ to propagate.
Sound requires _______ to propagate.
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Sound is a __________ wave.
Sound is a __________ wave.
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Sound is the form of ______________.
Sound is the form of ______________.
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Stars are the emitter of ______.
Stars are the emitter of ______.
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Transparent objects cannot form _______.
Transparent objects cannot form _______.
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Shadows have no _______.
Shadows have no _______.
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Glass is the example of _________ object.
Glass is the example of _________ object.
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The not so dark region of a shadow is called as _________
The not so dark region of a shadow is called as _________
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Rock is the example of _______ object.
Rock is the example of _______ object.
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Objects from which light can travel 70 percent are called _______.
Objects from which light can travel 70 percent are called _______.
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Electric bulb is an example of _______ source of light.
Electric bulb is an example of _______ source of light.
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All opaques objects can form ________.
All opaques objects can form ________.
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The darkest region on the shadow is called as _________
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Butter paper is the example of _________ object.
Butter paper is the example of _________ object.
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Shadows are formed by __________ objects.
Shadows are formed by __________ objects.
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