Question

To find the volume of a piece of wood, the student has a measuring cylinder, a supply of water and the brass object in (a). The piece of wood and the brass object are small enough to be placed in the measuring cylinder.
a) Suggest why does the piece of wood not sink in the water?
b) Describe what the student does to find the volume of the piece of wood, stating the measurements that she makes and any calculations required

Answer 1

Answer:a) density less than water.

Explanation:

(ii) determine any volume of any liquid (V1)  

states viable method to submerge wood  

reads volume (V2) from previous line and determines volume

of (wood + brass) (V2 – V1)  

subtract volume of brass from above (to give volume of wood)

Answer 2

The answers to the given questions are as follows:

(a). The piece of wood will not sink in water because the density of wood is less when we compare it to the density of water.

(b). To find the volume of the piece of wood:

• Firstly, measure the volume of the liquid that is water in this case. Denote it V1.

• Now submerge the piece of wood in it and measure the volume namely V2.
• It is obvious that V2 is greater than V1.
• Now, subtract V1 from V2, (V2 - V1).
• The remaining volume is the volume of submerged wood.