Answer :Question 16

Answer : Question 16( Archimedes Principle)

a) i. The block rises to the surface of water

ii. The block rises to the surface of water because the upthrus(buoyant force)t on the block is greater than the weight of the block

b) The block rises to the surface of water.

c) i. Volume of the block = m/p

= 0.18/900

= 0.0002 m³

Upthrust = pvg

= 0.0002 x 1200 x 10

= 2.4 N

Use Principle of Equilibrium of Forces to answer this part(Total Force Top = Total Force Down)

Weight of load + Weight of block = Upthrust

So, Weight of load = Upthrust - Weight of block [ w=mg…so w= 0.18 x 10 = 1.8]

= 2.4 – ( 1.8)

= 0.6 N

ii. The block will immerse deeper in the liquid.