SCIENCE
PHYSICAL SCIENCES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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more
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less
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Either A or B
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None of the above
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Detailed explanation-1: -Objects having less density than water will float on it. Objects having more density than water will sink. The density of plastic bottle is less than that of water, hence it floats.
Detailed explanation-2: -The density of a hollow plastic ball is less than the density of water due to the air in the ball. So, the weight of the water displaced by the ball is more than the weight of the ball. Thus, by the principle of floatation the ball floats in water.
Detailed explanation-3: -Key Concepts. Density is a measure of how heavy something is compared to its size. If an object is more dense than water it will sink when placed in water, and if it is less dense than water it will float.
Detailed explanation-4: -Because feathers and plastic balls are lighter than water, they will float on it. If an object’s density is greater than that of water, it sinks. If an object’s density is less than that of water, it will float.
Detailed explanation-5: -Since wood is less dense than water, wood floats in water, no matter how big or small the piece of wood is.