Two blocks of identical mass are placed in water. One is made of aluminum, the other of wood. The wood block is noted and therefore floating. Upon which is the buoyant force greater? 1) on the aluminum block, 2) on the wood block or 3) they both experience the same buoyant force.

the bouyant force depends on water displaced. The buoyant force on the wood is equal to the mass of the wood.

The aluminum is denser than the wood, lets say 4 times.

volume of aluminum=1/4 volume of wood.
Lets pretend the wood has .6 volume submerged, so the volume of aluminum submerged is .6(.25) volume of wood submerged, so the bouyant force then on the aluminum must be .6*.25 the bouyant force on the wood.

To determine which block experiences a greater buoyant force, we need to understand the concept of buoyant force. Buoyant force is the upward force exerted by a fluid on an object submerged or floating in it. It depends on the volume of the object and the density of the fluid.

In this case, both blocks are submerged in water. The buoyant force is equal to the weight of the water displaced by the blocks. So, let's compare the buoyant force acting on each block.

1) Aluminum block: Since the aluminum block is submerged in water, it displaces a volume of water equal to its own volume. Aluminum has a higher density than water, so the aluminum block is denser than the water it displaces. As a result, the weight of the water displaced by the aluminum block is less than the weight of the block itself. Therefore, the buoyant force acting on the aluminum block is less than its weight.

2) Wood block: The wood block is floating in water, which means it displaces a volume of water equal to its own volume. Wood has a lower density than water, so the wood block is less dense than the water it displaces. Consequently, the weight of the water displaced by the wood block is greater than the weight of the block itself. As a result, the buoyant force acting on the wood block is greater than its weight.

Therefore, the answer is 2) The wood block experiences a greater buoyant force than the aluminum block.