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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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For a regular object, the volume can easily be calculated by measuring length (L), breadth (or width) (b), and height (h).

volume length breadth and height

Volume = Length x Breadth x Height = l x b x h


For irregular objects, the volume can be calculated by suspending the object with a thread inside a measuring cylinder half-filled with water. The initial volume of the water V1 is noted before suspending the object and the new water level V2 is also noted after suspending the object. The difference in water level (V2 – V1 ) represents the volume of the object.

irregular-object
v4 460px Calculate the Volume of an Irregular Object Step 9 Version 2.jpg Easy Resize.com e1600325589537

For a sphere, the diameter can be measured using a micrometer screw gauge and the volume determined using the formulae

V = \( \frac {4}{3} \pi r^3\) 

r =  \( \frac {d}{2}\) , d = diameter of the object

micro meter screw guage
Using a Micrometer screw guage to measure diameter of a sphere
sphere

For a cone, V = \( \frac {1}{3}\scriptsize \pi r^2 h\)

Cone geometry

For a cylinder, V =  \( \scriptsize \pi r^2 h\) 

cylinder
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