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Measurements - Coggle Diagram

- - - - The magnitude is the numerical value of a physical quantity
    - - All physical quantites have units
  - - - 1x10^-4
    - - 10^4
    - - 1x10^-10
    - - 6x10^6
- - - - tail, main scale, vernier scale, internal jaw and external jaw
    - - the actual reading is always the false reading - zero error
      - The zero error on a vernier caliper is like a number line, to the left (negative zero error, read the vernier scale backwards), and to the right (positive zero error, read normally)
  - - - anvil, spindle, main scale, thimble scale, lock lever, ratchet
    - - To measure very small lengths such as the diameter of a wire, and has a range of measurement of 0 - 2.5 cm, and a degree of precision of 0.001cm
    - - The actual reading is equal to the false reading - zero error
      - the zero error on the MSG is negative if the 0 of the thimble scale is above the datum line, and it is read backwards, while a positive zero error is when the 0 of the thimble scale is below the datum line, and is read normally
  - - - Degree of accuracy is 0.1cm and range of measurement is 0 - 1m
    - - Degree of accuracy is 0.1cm and the range of measurement is 0 - 5m
- - - - Degree of accuracy is 0.01s
    - - Degree of accuracy is 0.1s or 0.2s
  - - - Gravitational field strength
        
        The larger the gravitational field strength, the shorter the period
      - Length of string suspending pendulum
        
        The longer the length of the string, the longer the period of the pendulum