how will you modify the experiment to measure the density of wood?
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Given below is the method when you want to measure the density of wood:
• Take a graduated cylinder of proper capacity. Fill it with water up to a marked level.
• Tie a wooden block by a strong thread and immerse it completely in water. The block will displace water and the level of water will rise. Note the new position of water level.
• Find the difference of two positions of the water level to see the volume of wooden block immersed.
• Repeat the experiment thrice and calculate the mean of three observations.
The calculations are given below Mean gravitational mass of the solid block,
w = w1+w2+w3/3= g.wt (by spring balance)
Mean volume of the solid block by graduated cylinder
v = v1+v2+v3/3= ml(cm3).
Mass of the object:
It can be calculated with the density (D) of the given solid block with the calculated mean mass and volume.
Mass of the solid, m = gravitational mass (w)*9.8/ g (environment)
(i) Mass of the solid (m) = ..................... g
(ii) Mean volume of the solid block (V) =...................cm3
(iii) Density (D) of the solid block = Mass / Volume =...................... g/cm3
• Take a graduated cylinder of proper capacity. Fill it with water up to a marked level.
• Tie a wooden block by a strong thread and immerse it completely in water. The block will displace water and the level of water will rise. Note the new position of water level.
• Find the difference of two positions of the water level to see the volume of wooden block immersed.
• Repeat the experiment thrice and calculate the mean of three observations.
The calculations are given below Mean gravitational mass of the solid block,
w = w1+w2+w3/3= g.wt (by spring balance)
Mean volume of the solid block by graduated cylinder
v = v1+v2+v3/3= ml(cm3).
Mass of the object:
It can be calculated with the density (D) of the given solid block with the calculated mean mass and volume.
Mass of the solid, m = gravitational mass (w)*9.8/ g (environment)
(i) Mass of the solid (m) = ..................... g
(ii) Mean volume of the solid block (V) =...................cm3
(iii) Density (D) of the solid block = Mass / Volume =...................... g/cm3
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