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PAPER 3 SECTION A. QUESTION NO. 1. What instrument will be tested?. Lever balance ? Tripple beam balance ? Thermometer ? Micrometer screw gauge ? Manometer ? Protractor ?. 3 0. 20. 4 0. 32. 3 0. 31. 3 0. 29. Taking Reading. 28.5. 36. 31.7.  = …………… C.  = …………… C.

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PAPER 3 SECTION A

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Paper 3 section a

PAPER 3 SECTION A

QUESTION NO. 1


What instrument will be tested

What instrument will be tested?

  • Lever balance ?

  • Tripple beam balance ?

  • Thermometer ?

  • Micrometer screw gauge ?

  • Manometer ?

  • Protractor ?


Taking reading

30

20

40

32

30

31

30

29

Taking Reading

28.5

36

31.7

 = …………… C

 = …………… C

 = …………… C


Taking reading1

15

l2

l1

14

13

12

Taking Reading

14

 = …………… 

14.0

l1 = ……….. cm

14.7

4.6

l2 = ……….. cm

t= …………… s


Taking reading2

Taking Reading

100.0 g

Initial mass of liquid X (Figure 3.2) = ………………….

78.7 g

Final mass of liquid X (Figure 3.3) = ………………….

84.2 g

Final mass of liquid X (Figure 3.4) = ………………….

87.5 g

Final mass of liquid X (Figure 3.5) = ………………….

92.0 g

Final mass of liquid X (Figure 3.6) = ………………….

96.7 g

Final mass of liquid X (Figure 3.7) = ………………….


Answering questions

Answering Questions

Area

1 (a) Manipulated variable = …………………………………..

Rate of evaporation

/ Mass

1 (b) Responding variable = …………………………………..

Temperature

/ density

1 (c) Constant variable = …………………………………..

/ humidity

/ speed of air flow


Answering questions1

Answering Questions

96.7

20.0

3.3

92.0

40.0

8.0

87.5

60.0

12.5

84.2

80.0

15.8

78.7

100.0

21.3


Answering questions2

Answering Questions

m/g

x

20

x

15

x

10

x

5

x

A/cm2

20

40

60

80

100


Answering questions3

Answering Questions

1 (e) State relationship

……………………………………………………………………..

m is linearly increasing with A

m

A


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