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SS1: PHYSICS – 1ST TERM

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  1. Introduction to Physics | Week 1
    4Topics
    |
    1 Quiz
  2. Measurement | Week 2
    3Topics
  3. Measurement of Mass | Week 3
    6Topics
    |
    1 Quiz
  4. Motion | Week 4
    5Topics
    |
    1 Quiz
  5. Velocity-Time Graph | Week 5
    4Topics
    |
    1 Quiz
  6. Causes of Motion | Week 6
    5Topics
    |
    1 Quiz
  7. Work, Energy & Power | Week 7
    3Topics
  8. Energy Transformation / Power | Week 8
    3Topics
    |
    1 Quiz
  9. Heat Energy | Week 9
    5Topics
    |
    1 Quiz
  10. Linear Expansion | Week 10
    6Topics
    |
    1 Quiz
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When substances are subjected to heat, they expand and this expansion can be an increase in length, size or area, or volume.

Expansion In Solids:

Whenever a solid substance is heated, it expands and when heat is removed, it contracts e.g.

Bar & gauge experiment:

bar and gauge experiment

At ordinary temperature, the bar fits into the gauge. When the bar is heated with a bunsen burner, for some time, the bar cannot fit into the gauge anymore, as a result of expansion which is an increase in length, when the bar is allowed to cool down; it fits into the gauge again, showing that contraction has taken place.

Bar & gauge experiment:
Bar & gauge experiment:
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