K.C.S.E Physics Q & A - MODEL 2004PP2QN01

K.C.S.E Physics Q & A - MODEL 2004PP2QN01

​a) A test tube of uniform cross-section loaded so that it can float upright in water. With the aid of a labeled diagram, describe how the test tube may be calibrated to measure the density of liquid.

​b) In an experiment to determine the density of a liquid, a uniform metal cylinder of cross-section area 6.2cm was hang from a spring balance and lowered gradually into the liquid. The up thrust was determined for various submerged lengths. The results obtained are shown on the graph in Fig 1.

Using graph, determine;
(i) The value of the up thrust when the cylinder is fully submerged
(ii) The Density of the liquid

answers