PAPER 3 SECTION A QUESTION NO. 1

What instrument will be tested? Lever balance ? Tripple beam balance ? Thermometer ? Micrometer screw gauge ? Manometer ? Protractor ?

Taking Reading  = ……………  C

Taking Reading l1l1 l2l2  = ……………  l 1 = ……….. cm t = …………… s l 2 = ……….. cm 14.7

Taking Reading Initial mass of liquid X (Figure 3.2) = …………………. Final mass of liquid X (Figure 3.3) = …………………. Final mass of liquid X (Figure 3.4) = …………………. Final mass of liquid X (Figure 3.5) = …………………. Final mass of liquid X (Figure 3.6) = …………………. Final mass of liquid X (Figure 3.7) = ………………… g 78.7 g 84.2 g 87.5 g 92.0 g 96.7 g

Answering Questions 1 (a) Manipulated variable = ………………………………….. 1 (b) Responding variable = ………………………………….. 1 (c) Constant variable = ………………………………….. Area / MassRate of evaporation Temperature/ density / humidity/ speed of air flow

Answering Questions A / cm 2 m / g  m / g

Answering Questions A/cm 2  m/g x x x x x

Answering Questions 1 (e) State relationship …………………………………………………………………….. A mm  m is linearly increasing with A