1. PAPER 3 SECTION A QUESTION NO. 1

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

3. Taking Reading 20 3030 3030 4040 3030 31 32 29  = ……………  C 28.5 3631.7

4. Taking Reading 12 13 14 15 l1l1 l2l2  = ……………  l 1 = ……….. cm t = …………… s 14 14.0 4.6 l 2 = ……….. cm 14.7

5. 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) = …………………. 100.0 g 78.7 g 84.2 g 87.5 g 92.0 g 96.7 g

6. 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

7. Answering Questions A / cm 2 m / g  m / g 96.7 92.0 87.5 84.2 78.7 20.0 40.0 60.0 80.0 100.0 3.3 8.0 12.5 15.8 21.3

8. Answering Questions 20406080100 5 10 15 20 A/cm 2  m/g x x x x x

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