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2023/24 Annual Teaching Plans: Physical Sciences: Grade 11

Term 1

Week 1
  • CAPS Topics (2 hrs): Mechanics: Vectors in two dimensions
Week 2
  • CAPS Topics (4 hrs): Mechanics: Vectors in two dimensions
Week 3
  • CAPS Topics (2 hrs): Mechanics: Vectors in two dimensions
Week 4
  • CAPS Topics (2 hrs): Mechanics: Newton’s laws
Week 5
  • CAPS Topics (4 hrs): Mechanics: Newton’s laws
Week 6
  • CAPS Topics (4 hrs): Mechanics: Newton’s laws
Week 7
  • CAPS Topics (4 hrs): Mechanics: Newton’s laws
Week 8
  • CAPS Topics (4 hrs): Mechanics: Universal Law of Newton
Week 9
  • CAPS Topics (4 hrs): Electricity & Magnetism: Electrostatics
Week 10-11
  • CAPS Topics (4 hrs): Electricity & Magnetism: Electrostatics
  • Control Test (2 hrs)

Topics, Concepts, Skills and Values

Mechanics: Vectors in Two Dimensions
  • Definition of Resultant: The resultant of multiple vectors is a single vector that has the same effect as the combined action of the original vectors.
  • Determine the Resultant: Use a maximum of four vectors on a Cartesian plane.
    • Component Method: Break down vectors into horizontal and vertical components.
  • Sketch Vertical (Ry) and Horizontal (Rx) Vectors: Illustrate both components on a Cartesian plane.
  • Magnitude Calculation: Use the Pythagorean theorem, where R=exthypotenuseR = ext{hypotenuse}.
  • Direction Calculation: Utilize simple trigonometric ratios.
  • Graphical Determination: Methods include tail-to-head or tail-to-tail (parallelogram method).
  • Closed Vector Diagram: Explanation of diagrams where the vector returns to the origin by connecting their tails.
Mechanics: Newton’s Laws
  • Key Definitions:
    • Normal Force, NN: The support force exerted upon an object in contact with another stable object.
    • Frictional Force, ff: The force that opposes the motion of an object.
    • Static Frictional Force, fsf_s: The force that keeps an object at rest from moving.
    • Kinetic Frictional Force, fkf_k: The friction that opposes the motion of moving objects.
  • Properties of Frictional Force:
    • Proportional to the normal force.
    • Independent of the area of contact.
  • Force Diagrams: Draw and interpret free-body diagrams to visualize forces acting on an object.
  • Resultant Force: Calculate the net force of multiple forces acting on an object.
Newton's Laws
  • Newton's First Law: An object at rest remains at rest, and an object in motion continues in motion unless acted upon by a net external force.
    • Inertia: The tendency of an object to resist changes in its state of motion; directly proportional to mass.
    • Practical Implication: Importance of seatbelts in vehicles as a safety measure exemplified by inertia.
  • Newton's Second Law (in symbols): Fnet=maF_{net} = ma
    • Application in:
    • Horizontal motion with/without friction.
    • Motion on inclined planes.
    • Vertical motion scenarios (e.g., lifts).
  • Newton's Third Law: For every action, there is an equal and opposite reaction; identification of action-reaction force pairs and characteristics.
  • Universal Law of Gravitation:
    • F=Gm1m2r2F = G\frac{m_1m_2}{r^2}; where FF is the gravitational force, GG is the gravitational constant, m1m_1 and m2m_2 are the masses, and rr is the distance between the centers.
  • Weight Calculation: w=mgw = mg, with gravitational acceleration gg derived from g=GMrE2g = \frac{GM}{r_E^2} for Earth and similarly for other planets.
Electrostatics
  • Coulomb's Law in 1D and 2D: Calculation using the formula for electrostatic forces, F=kQ1Q2r2F = k\frac{Q_1Q_2}{r^2}.
  • Electric Field Definition: Region where an electric charge experiences a force.
  • Field Configuration Diagrams: Draw field patterns for systems like point charges.
  • Magnitude of Electric Field: E=FQE = \frac{F}{Q} and derive E=kQr2E = k\frac{Q}{r^2} for point charges.

Term 2

Week 1 to Week 11
  • CAPS Topics: Focus on concepts in Electricity and Magnetism, Matter and Material, and corresponding assessments.

Assessment Structure

  • Informal Assessments: Homework, informal tests, practicals on resultant forces, frictional forces impact.
  • Formal Practical: Newton's second law verification and related experiments.

Additional Terms and Concepts

  • Resources for Learning: Include experiments, study guides, previous papers, videos, and simulations (e.g., PhET).

Term 3 and Term 4

Control Tests and Assessments
  • Detailed study on chemical changes, energy relationships, and types of reactions; including a significant focus on review and consolidation before final exams.