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    O Level Physics

    Uploaded by

    Alyssa Cole
    The document describes three physics experiments: 1) An experiment to measure the load and extension of a stretched spring. The questions ask for initial spring length, completing a data table, plotting a graph, identifying an incorrect data point, marking the elastic limit on the graph, and calculating load from an extension. 2) Determining the center of gravity of an irregular lamina using a plumb line. 3) Calculating the weight of a boy using a see-saw experiment with his sister, then describing what happens when they slide away from the balance point.

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

    O Level Physics

    Uploaded by

    Alyssa Cole
    62 views2 pages
    The document describes three physics experiments: 1) An experiment to measure the load and extension of a stretched spring. The questions ask for initial spring length, completing a data table, plotting a graph, identifying an incorrect data point, marking the elastic limit on the graph, and calculating load from an extension. 2) Determining the center of gravity of an irregular lamina using a plumb line. 3) Calculating the weight of a boy using a see-saw experiment with his sister, then describing what happens when they slide away from the balance point.

    Original Description:

    igcse O level physics exercises

    Original Title

    O level Physics

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    The document describes three physics experiments: 1) An experiment to measure the load and extension of a stretched spring. The questions ask for initial spring length, completing a data table, plotting a graph, identifying an incorrect data point, marking the elastic limit on the graph, and calculating load from an extension. 2) Determining the center of gravity of an irregular lamina using a plumb line. 3) Calculating the weight of a boy using a see-saw experiment with his sister, then describing what happens when they slide away from the balance point.

    Copyright:

    © All Rights Reserved
    Download as DOC, PDF, TXT or read online from Scribd
    Download as doc, pdf, or txt
    62 views2 pages

    O Level Physics

    Uploaded by

    Alyssa Cole
    The document describes three physics experiments: 1) An experiment to measure the load and extension of a stretched spring. The questions ask for initial spring length, completing a data table, plotting a graph, identifying an incorrect data point, marking the elastic limit on the graph, and calculating load from an extension. 2) Determining the center of gravity of an irregular lamina using a plumb line. 3) Calculating the weight of a boy using a see-saw experiment with his sister, then describing what happens when they slide away from the balance point.

    Copyright:

    © All Rights Reserved
    Download as DOC, PDF, TXT or read online from Scribd
    Download as doc, pdf, or txt
    of 2

    1.

    In an experiment to stretch a spring the following results were obtained

    (a) What is the length of the spring before it is stretched?


    _________________________________________________________________________________ [4]
    (b) Complete the table. [12]
    (c) Plot a graph of load (x-axis) against extension (y-axis) [16]

    (d) One of the results is wrong. What should it be? _______________________________________ [4]
    (e) Mark the point on the graph at which the spring reaches the elastic limit. [4]
    (f) What load would give an extension of 30mm?_________________________________________ [4]
    (g) What would the spring length for a load of 4.5 N? ______________________________ [4] [Total 48marks]
    2. Determine Centre of Gravity of Irregular lamina using the Plumb-line. [20 marks]

    1 of 2

    (Class):________ (No):__________

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    3. A girl of weight 550 N is playing on a see-saw with her brother. Fig. 3.1 shows her brother of weight W sitting
    1.1 m to the right of the balance point.

    Fig. 3.1 (not to scale)


    The see-saw is balanced when the girl sits 0.86 m to the left of the balance point.
    (a) Calculate W.
    .........................................................................................................................................
    .........................................................................................................................................
    .........................................................................................................................................
    W = .................................................. [12]
    (b) The girl and her brother slide equal distances along the see-saw away from each other.
    Describe and explain what happens.
    .........................................................................................................................................
    .........................................................................................................................................
    .........................................................................................................................................
    ..................................................................................................................................... [12] [Total 24 marks]
    4. Why is the middle seating most comfortable in a bus traveling along a bumpy road? [8]
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    2 of 2

    (Class):________ (No):__________

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