Question

q2. a student puts a wooden block into water, and it floats. which conclusion is correct? a. wood is denser than water b. wood has the same density as water c. wood is less dense than water d. density does not matter

Explanation:

To determine the correct conclusion, we use the principle of buoyancy: an object floats in a fluid if its density is less than the fluid's density. When the wooden block floats in water, it means the density of wood is less than the density of water.

• Option A is incorrect because if wood were denser than water, it would sink.
• Option B is incorrect as equal density would result in neutral buoyancy (neither sinking nor floating fully, but suspended), not floating on the surface.
• Option D is incorrect because density is a key factor in determining whether an object floats or sinks in a fluid.

Answer:

C. Wood is less dense than water