Nothing Special   »   [go: up one dir, main page]
Scribd Logo
Upload

Welcome to Scribd!

  • 102 views

    CSEC Physics January 2011 P2 PDF

    Uploaded by

    cxcchemistry

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd

    CSEC Physics January 2011 P2 PDF

    Uploaded by

    cxcchemistry
    102 views17 pages

    Original Title

    CSEC Physics January 2011 P2.pdf

    Copyright

    © © All Rights Reserved

    Available Formats

    PDF, TXT or read online from Scribd

    Did you find this document useful?

    Is this content inappropriate?

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    102 views17 pages

    CSEC Physics January 2011 P2 PDF

    Uploaded by

    cxcchemistry

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    of 17

    TEST CODE 01238020

    FORM TP 2011022 JANUARY 2011

    CAR I B BEAN E XAM I NATI O N S COUNCIL

    SECONDARY EDUCATION CERTIFICATE


    EXAMINATION

    PHYSICS

    2 hours 30 minutes

    READ THE FOLLOWING INSTRUCTIONS CAREFULLY.

    1. This paper consists of SIX questions.

    2. Section A consists of THREE questions. Candidates must attempt ALL


    questions in this section. Answers for this section must be written in this
    answer booklet.

    3. Section B consists of THREE questions. Candidates must attempt ALL


    questions in this section. Answers for this section must be written in this
    answer booklet.

    4. All working MUST be CLEARLY shown.

    5. The use of non-programmable calculators is permitted, but candidates should

    penalised.

    6. Mathematical tables are provided.

    DO NOT TURN THIS PAGE UNTIL YOU ARE TOLD TO DO SO.

    Copyright © 2009 Caribbean Examinations Council.


    All rights reserved.
    01238020/JANUARY/F 2011
    - 2 -

    SECTION A

    1. A popular sprinter of mass 60 kg, was running a 100 m race. Her velocity was measured over
    a 10.0 s period. The results are recorded in Table 1.

    TABLE 1

    Velocity,v/ms–1 0.0 2.5 5.0 7.5 10.0 10.0

    Time, t/s 0.0 2.0 4.0 6.0 8.0 10.0

    Velocity

    _____________________________________________________________________

    _____________________________________________________________________

    Acceleration

    _____________________________________________________________________

    _____________________________________________________________________

    (b) Use the results from Table 1 to plot a graph of Velocity versus Time on page 3.

    GO ON TO THE NEXT PAGE


    01238020/JANUARY/F 2011
    - 3 -

    GO ON TO THE NEXT PAGE


    01238020/JANUARY/F 2011
    - 4 -

    (d) How is the slope of the graph related to the acceleration of the sprinter?

    _____________________________________________________________________

    (e) Calculate the resultant force acting on the sprinter after 6.0 s.

    would be after 10.0 s.

    GO ON TO THE NEXT PAGE


    01238020/JANUARY/F 2011
    - 5 -

    2. Electromagnetic waves consist of visible light and radiations higher or lower than the wavelength
    of light.

    a) longer than visible light _____________________________________

    b) shorter than visible light. ____________________________________

    (ii) Complete Table 2 which relates to the sources and uses of electromagnetic waves.

    TABLE 2

    Name of Wave Use

    X-ray To take X-ray pictures

    Gamma Ray

    Radio wave

    (b) (i) If gamma rays have a wavelength of 3.0 × 10-12 m, calculate the frequency of
    this type of radiation.

    ______________________________________________________________

    ______________________________________________________________

    ______________________________________________________________

    ______________________________________________________________

    ______________________________________________________________

    [Velocity of all electromagnetic waves = 3.0 × 108m s–1]

    GO ON TO THE NEXT PAGE


    01238020/JANUARY/F 2011
    - 6 -

    (ii) A ray of red light emerges from a glass block as shown in Figure 1.

    If the block has a refractive index of 1.5, determine the value of the angle e.

    GO ON TO THE NEXT PAGE


    01238020/JANUARY/F 2011
    - 7 -

    3. (a) Complete Table 3 which relates electrical circuit symbols to the names of electrical
    components.
    TABLE 3

    Name of Components

    Variable resistor

    Semi-conductor diode

    (b) Figure 2 shows a circuit diagram.

    In the circuit shown in Figure 2, R1 3


    S open, the current I through the ammeter is 2 A.

    (i) State the formula which relates voltage, V, current, I and resistance, R.

    _______________________________________________________________

    GO ON TO THE NEXT PAGE


    01238020/JANUARY/F 2011
    - 8 -

    (ii) Calculate the value of R2.

    (iv) If switch S is closed, what would be the new reading on ammeter, A ?

    GO ON TO THE NEXT PAGE


    01238020/JANUARY/F 2011
    - 9 -

    SECTION B

    4. (a) Describe how the apparatus shown in Figure 3 below may be used to show how the
    temperature of a substance such as naphthalene, varies during cooling. Include in your
    description any other equipment that may be necessary.

    obtained.

    Initial mass of water at 30°C = 100 g


    Final mass of water (initial water plus melted ice) at 20°C = 110 g

    Assume the container has negligible heat capacity and that the heat lost to the surroundings
    is equal to the heat gained from the surroundings during the experiment.

    GO ON TO THE NEXT PAGE


    01238020/JANUARY/F 2011
    - 10 -

    (i) Determine the mass of the melted ice.

    (ii) Calculate the heat lost by the water.

    the melted ice in warming to 20°C.

    –1 K–1]

    GO ON TO THE NEXT PAGE


    01238020/JANUARY/F 2011
    - 11 -

    GO ON TO THE NEXT PAGE


    01238020/JANUARY/F 2011
    - 12 -

    5. (a)

    the conductor experiences.

    highway for recharging batteries.

    car will affect the charging of the batteries.

    GO ON TO THE NEXT PAGE


    01238020/JANUARY/F 2011
    - 13 -

    GO ON TO THE NEXT PAGE


    01238020/JANUARY/F 2011
    - 14 -

    6. (a) Some great scientists contributed to the modern-day view of the model of the atom.
    Two of these were J. J. Thompson and Ernest Rutherford.

    concerning the nature of the atom, including the name of EACH of their models.

    19P; 92 Q; R;
    18 X;
    92 19 Y

    (i) which nuclides have the identical mass number

    (ii) how many neutrons are in the heaviest nuclide

    (iii) which nuclides are isotopes.

    (c) In a half-life experiment, the data shown in Table 4 were obtained.

    TABLE 4

    4000 0.0
    1000 55.0
    500 80.0

    (ii) The average half-life of the element

    GO ON TO THE NEXT PAGE


    01238020/JANUARY/F 2011
    - 15 -

    GO ON TO THE NEXT PAGE


    01238020/JANUARY/F 2011
    - 16 -

    END OF TEST

    01238020/JANUARY/F 2011
    DO NOT

    WRITE ON

    THIS PAGE

    You might also like