paper 3b zulaili guru1

Upload: simon-olson

Post on 03-Jun-2018

227 views

Category:

Documents


0 download

TRANSCRIPT

  • 8/12/2019 Paper 3b Zulaili Guru1

    1/54

    Paper 3

    Zulaili Yaacob&

    Mohamad Hussaini

  • 8/12/2019 Paper 3b Zulaili Guru1

    2/54

  • 8/12/2019 Paper 3b Zulaili Guru1

    3/54

  • 8/12/2019 Paper 3b Zulaili Guru1

    4/54

  • 8/12/2019 Paper 3b Zulaili Guru1

    5/54

  • 8/12/2019 Paper 3b Zulaili Guru1

    6/54

  • 8/12/2019 Paper 3b Zulaili Guru1

    7/54

  • 8/12/2019 Paper 3b Zulaili Guru1

    8/54

  • 8/12/2019 Paper 3b Zulaili Guru1

    9/54

  • 8/12/2019 Paper 3b Zulaili Guru1

    10/54

    SECTION A : Question 1

    1(a)(i) Manipulated variable : ____________________

    1(a)(ii) Responding variable : ____________________

    1(a)(iii) Constant variable : ____________________

    EXAMPLE:

    A student carries out an experiment to investigate the relationship

    between temperature, , and the volume, V, of trapped air. A beaker

    is filled with cold water until the air column in the capillary tube is

    totally immersed. A thermometer is put into the water to determine

    the temperature of the water. The arrangement of the apparatus for

    the experiment is shown in Figure 11.1.

    Temperature,

    Volume, V

  • 8/12/2019 Paper 3b Zulaili Guru1

    11/54

    SECTION A : Question 1

    1(a)(i) Manipulated variable : ____________________

    1(a)(ii) Responding variable : ____________________

    1(a)(iii) Constant variable : ____________________

    1

    2

    0

    l

    1

    Figure 11.2:

    Temperature, = 30 C

    length, l= cm

    m.v

    r.v

    Temperature,

    Length, l

  • 8/12/2019 Paper 3b Zulaili Guru1

    12/54

    SECTION A : Question 1

    1(a)(i) Manipulated variable : ____________________

    1(a)(ii) Responding variable : ____________________

    1(a)(iii) Constant variable : ____________________(depends on the experiment)

    Which of the following is possibly a constant variable?

    A) Mass B) Thermometer C) Air

    A) Water B) Stopwatch C) Time

    A) Length B) Air column C) Ruler

  • 8/12/2019 Paper 3b Zulaili Guru1

    13/54

    SECTION A : Question 1

    1(b) Based on Figures 11.2, 11.3, 11.4, 11.5, and 11.6, determine l

    when is equal to 30 C, 35 C, 40 C, 45 C and 50 C.

    Tabulate your results for l and Vfor each value of in the space below.

    / C l / cm V / cm3

    30

    35

    40

    45

    50

  • 8/12/2019 Paper 3b Zulaili Guru1

    14/54

    SECTION A : Question 1 Spot the errors

    t1 t

    2 t

    mean T T2 l

    17 17.6 17.3 0.87 0.76 20

    22.4 22 22.2 1.11 1.23 30

    25 24.6 24.8 1.24 1.54 40

    28 28.8 28.4 1.42 2.02 50

    30.8 31 30.9 1.55 2.4 60

    No unit!

    Not consistence!

  • 8/12/2019 Paper 3b Zulaili Guru1

    15/54

    SECTION A : Question 1 Spot the errorsUnit at the wrong place!

    l t1 t

    2 t

    mean T T2

    20.0 cm 17.0 s 17.6 s 17.3 s 0.87 s 0.76 s2

    30.0 cm 22.4 s 22.0 s 22.2 s 1.11 s 1.23 s2

    40.0 cm 25.0 s 24.6 s 24.8 s 1.24 s 1.54 s2

    50.0 cm 28.0 s 28.8 s 28.4 s 1.42 s 2.02 s2

    60.0 cm 30.8 s 31.0 s 30.9 s 1.55 s 2.40 s2

  • 8/12/2019 Paper 3b Zulaili Guru1

    16/54

    SECTIONA : Question 1 Spot the errorsWrong unit!

    Not consistence!

    l/ cm t1/ s t

    2/ s t

    mean/ s T/ s T2/ s

    20.0 17.0 17.6 17.3 0.865 0.748

    30.0 22.4 22.0 22.2 1.11 1.232

    40.0 25.0 24.6 24.8 1.24 1.537

    50.0 28.0 28.8 28.4 1.42 2.016

    60.0 30.8 31.0 30.9 1.545 2.387

  • 8/12/2019 Paper 3b Zulaili Guru1

    17/54

    SECTION A : Question 1 Spot the errors!

    No error!

    l/ cm t1/ s t

    2/ s t

    mean/ s T/ s T2/ s2

    20.0 17.0 17.6 17.3 0.87 0.76

    30.0 22.4 22.0 22.2 1.11 1.23

    40.0 25.0 24.6 24.8 1.24 1.54

    50.0 28.0 28.8 28.4 1.42 2.02

    60.0 30.8 31.0 30.9 1.55 2.40

    GOOD ANSWER!

  • 8/12/2019 Paper 3b Zulaili Guru1

    18/54

    SECTION A : Question 1

    BAD GRAPH!

    GOOD GRAPH!

  • 8/12/2019 Paper 3b Zulaili Guru1

    19/54

    SECTION A : Question 1

    What is a GOOD graph?

    1) Starting at origin (0,0)

    2) Write quantitiesand units on x-axis

    and y-axis

    3) Has uniform scale

    4) All points are transferred correctly

    5) Draw onestraight line and intersect

    any of the axes

    6) Distribute other points equally

  • 8/12/2019 Paper 3b Zulaili Guru1

    20/54

    SECTION A : Question 1

    Accepted graph

  • 8/12/2019 Paper 3b Zulaili Guru1

    21/54

    SECTION A : Question 1

    Rejected graph

    more than 1 cm

  • 8/12/2019 Paper 3b Zulaili Guru1

    22/54

    SECTION A : Question 1

    Rejected graph

    more than 0.5 cm

  • 8/12/2019 Paper 3b Zulaili Guru1

    23/54

    SECTION A : Question 1

    Conclusion

    a

    b

    A) a is inversely proportional to b

    B) a is directly proportional to b

    C) a is linearly increasing with b

    a

    b

    A) a is inversely proportional to b

    B) a is directly proportional to b

    C) a is linearly increasing with b

  • 8/12/2019 Paper 3b Zulaili Guru1

    24/54

    SECTION A : Question 1

    Conclusion

    A) a is inversely proportional to b

    B) a is directly proportional to b

    C) a is linearly increasing with b

    A) a is inversely proportional to b

    B) a is directly proportional to 1/b

    C) a is linearly increasing with 1/b

    a

    b

    a

    1/b

  • 8/12/2019 Paper 3b Zulaili Guru1

    25/54

    SECTION A : Question 2

    2(a)(i) Relationship

    A) a is inversely proportional to b

    B) a is directly proportional to b

    C) a is linearly increasing with b

    A) a is inversely proportional to bB) a is directly proportional to 1/b

    C) a is linearly increasing with 1/b

    a

    b

    a

    1/b

  • 8/12/2019 Paper 3b Zulaili Guru1

    26/54

    SECTION A : Question 2

    2(a)(i) Relationship

    a

    b

    A) a is inversely proportional to b

    B) a is directly proportional to b

    C) a is linearly increasing with b

    a

    b

    A) a is inversely proportional to b

    B) a is directly proportional to b

    C) a is linearly increasing with b

  • 8/12/2019 Paper 3b Zulaili Guru1

    27/54

    SECTION A : Question 2

    2(a)(ii) Determine Corresponding Value

    h/ cm

    P/ Nm-2

    1.0 2.0 3.0

    1.0

    2.0

    3.0

    4.0P = 4.0 Nm-2

  • 8/12/2019 Paper 3b Zulaili Guru1

    28/54

    SECTION A : Question 2

    2(a)(ii) Determine Corresponding Value

    1/m/ g-1

    / C

    0.1 0.2 0.3

    1.0

    2.0

    3.0

    4.01/m = 0.3 g-1

    m = 3.3 g

  • 8/12/2019 Paper 3b Zulaili Guru1

    29/54

    SECTION A : Question 2

    2(b)(i) Determine Gradient

    1/m/ g-1

    / C

    0.1 0.2 0.3

    1.0

    2.0

    3.0

    4.0

    Gradient, m = 4.0 C

    0.3 g-1

    m = 13.33 C g

    y

    x

  • 8/12/2019 Paper 3b Zulaili Guru1

    30/54

    SECTION A : Question 2

    2(b)(ii) Calculation problem (involving the gradient)

    Reminder!

    1) Use the value of gradient obtained in previous

    question

    2) Check for the conversion of units

    3) Substitute figures at the correct places

    4) Write the final answer in decimal number (Do

    not give the answer in fraction!!!)

    5) Do not forget the UNIT

  • 8/12/2019 Paper 3b Zulaili Guru1

    31/54

    SECTION A : Question 2

    2(c) Calculation problemReminder!

    1) Check for the conversion of units

    2) Substitute figures at the correctplaces

    3) Write the final answer in decimal number

    (Do not give the answer in fraction!!!)

    4) Do not forget the UNIT

  • 8/12/2019 Paper 3b Zulaili Guru1

    32/54

    SECTION A : Question 2

    2(d) Precaution

    Reminder!

    1) It is NOT SAFETY PRECAUTION!!!

    Take few readings and find the average toreduce random error

    Position of eyes is perpendicular to the

    scale to avoid parallax error

  • 8/12/2019 Paper 3b Zulaili Guru1

    33/54

    Paper 3

    Section B

  • 8/12/2019 Paper 3b Zulaili Guru1

    34/54

  • 8/12/2019 Paper 3b Zulaili Guru1

    35/54

    Variables : Air pressure , Temperature.Manipulated :Responding :

    Constant :

    temperature

    Air pressure

    Volume of air

  • 8/12/2019 Paper 3b Zulaili Guru1

    36/54

    inference

    MV affects RV

    affectstemperatureair pressure

  • 8/12/2019 Paper 3b Zulaili Guru1

    37/54

    hypothesis

    When

    increases, ,

    increases

    Temperature

    Air pressure

  • 8/12/2019 Paper 3b Zulaili Guru1

    38/54

    aim

    To investigate therelationship between

    andtemperature

    pressure

  • 8/12/2019 Paper 3b Zulaili Guru1

    39/54

    Method of controlling manipulated

    variable

    Manipulate variable : temperature

    control : the first temperature

    Heat up the water to 20 0C

  • 8/12/2019 Paper 3b Zulaili Guru1

    40/54

    Method of measuring responding

    variable

    Responding variable : pressure

    Measure pressure using : Bourdon gauge

    Using Bourdon gauge , measure the

    pressure and record the data

  • 8/12/2019 Paper 3b Zulaili Guru1

    41/54

    Analyse data

    Temperature / K Pressure / Nm-2

    20

    30

    40

    50

    60

    Graph

  • 8/12/2019 Paper 3b Zulaili Guru1

    42/54

    Graph

    Temperature / K

    Pressure / Nm-2

  • 8/12/2019 Paper 3b Zulaili Guru1

    43/54

    i bl

  • 8/12/2019 Paper 3b Zulaili Guru1

    44/54

    variables

    Manipulated :

    Responding :

    Constant :

    length

    resistance

    diameter

  • 8/12/2019 Paper 3b Zulaili Guru1

    45/54

    inference

    _ affectslength

    resistance

  • 8/12/2019 Paper 3b Zulaili Guru1

    46/54

    hypothesis

    When increases,

    , increases

    length

    resistance

  • 8/12/2019 Paper 3b Zulaili Guru1

    47/54

    aim

    To investigate the relationship between

    andlengthresistance

    M h d f lli i l d

  • 8/12/2019 Paper 3b Zulaili Guru1

    48/54

    Method of controlling manipulated

    variable

    Manipulated variable : length

    Control : the first length : 15 cm

    Measu re 15 cm leng th o f w ire and

    connect both end at po int A and B

    M h d f i di

  • 8/12/2019 Paper 3b Zulaili Guru1

    49/54

    Responding variable : resistance

    Measure potential difference using :

    Method of measuring responding

    variable

    Measure potential difference using

    volmeter and calculate the resistance.Record data

    voltmeter

  • 8/12/2019 Paper 3b Zulaili Guru1

    50/54

    Analyse dataLength / cm Potential difference / V Resitance /

    15

    20

    25

    30

    35

  • 8/12/2019 Paper 3b Zulaili Guru1

    51/54

    Length

    Resistance

    cm

  • 8/12/2019 Paper 3b Zulaili Guru1

    52/54

    Cuba soalan muka surat 5

  • 8/12/2019 Paper 3b Zulaili Guru1

    53/54

  • 8/12/2019 Paper 3b Zulaili Guru1

    54/54