Question

it is commonly said that wood floats because it is lighter than water or that a stone sinks because it is heavier than water. are these accurate statements? explain. multiple choice no, these statements are not entirely accurate. a more precise explanation involves density. wood is less dense than water, while the density of the sinking rock is larger than that of water. yes, these statements are perfectly accurate explanations. the weight of wood is indeed lighter than that of water, while the weight of a rock is heavier than that of water. no, weight doesnt matter; objects with more surface area will float. no, the viscosity of the surrounding fluid and atmospheric pressure are the only factors that determine if objects can float.

Explanation:

The key to floating/sinking is density (mass/volume), not just weight. Wood floats as its density < water’s; a stone sinks as its density > water’s. The first option correctly points out the statements lack precision (they use weight, not density) and explains the density principle. Other options are wrong: the second misstates accuracy, the third ignores density, the fourth is incorrect (density, not viscosity/pressure, is key for floating).

Answer:

The correct option is: No, these statements are not entirely accurate. A more precise explanation involves density. Wood is less dense than water, while the density of the sinking rock is larger than that of water.