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AP Intermediate 2nd Year Force, Pressure & Fluids — practice questions

Explore 4 free Force, Pressure & Fluids questions in AP Intermediate 2nd Year Science. Open each question or exercise to read its content, reference answers and available explanation.

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Force, Pressure & Fluids questions and exercises with answers

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Order the atomic models as they were proposedRead the answer and worked solution →Match each scientist to their modelRead the answer and worked solution →Match each model to what it could NOT explainRead the answer and worked solution →True or false: Rutherford's modelRead the answer and worked solution →

Worked practice questions

Order the atomic models as they were proposed

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Steps
  1. Dalton: the atom is the ultimate indivisible particle
  2. Thomson: a sphere of positive charge with electrons embedded
  3. Rutherford: a tiny dense nucleus with electrons revolving around it
  4. Bohr: electrons in fixed circular orbits of definite energy
  5. Schrodinger: a wave equation giving energy states and orbitals
syllabus walks through them in this order, each answering what the previous one could not: Dalton 1808, Thomson 1898, Rutherford 1909, Bohr 1913, Schrodinger 1926. Source: syllabus Chemistry Part I, Ch 2 Structure of Atom.

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Match each scientist to their model

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Matching pairs
  1. Left
    Dalton
    Right
    atom as the ultimate indivisible particle
  2. Left
    Thomson
    Right
    electrons embedded in a sphere of positive charge
  3. Left
    Rutherford
    Right
    a tiny positively charged nucleus at the centre
Five models, five names. Source: syllabus Chemistry Part I, Ch 2 Structure of Atom.

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Match each model to what it could NOT explain

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Matching pairs
  1. Left
    Thomson's model
    Right
    disproved by alpha-particle scattering
  2. Left
    Rutherford's model
    Right
    could not explain the atom's stability
  3. Left
    Bohr's model
    Right
    failed for multi-electron atoms
The failures are what drove the next model, and they are the examinable part. Source: syllabus Chemistry Part I, Ch 2 Structure of Atom.

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