Understanding Buoyancy: Tennis Ball vs Billiard Ball

What happens when a tennis ball and a billiard ball of the same volume are placed in water?

Answer:

Both the tennis ball and the billiard ball will sink to the same depth when placed in water. Therefore, the correct answer is option B.

When an object is placed in a fluid, such as water, it experiences an upward force called buoyancy. The buoyant force is equal to the weight of the fluid displaced by the object.

In this case, both the tennis ball and the billiard ball have the same volume, so they will displace the same amount of water. Therefore, they will experience the same buoyant force and sink to the same depth.