PHYSICS HOMEWORK SCHEDULED FOR SECOND TERM

GRADE 7

  1. Read and underline/highlight the main points in Chapter 4: Electricity 1.
  2. Read and underline/highlight the main points in Chapter 5: Energy.
  3. Using the notes in your copybook and textbook, prepare a one sheet (two pages) summary of the chapters Electricity 1 and Energy. You will have to recite (learn by heart) your summary one to two weeks before the second term examinations. Your summary should be in question (in red ink) and answer (in blue ink) format and should answer the following questions:
    1. How is electricity important and where is it used in everyday life?
    2. Draw the appropriate symbol and state the purpose of the following circuit component:
      1. Cell,
      2. Battery,
      3. Lamp (bulb),
      4. Resistor,
      5. Switch.
    3. Draw and label a simple circuit diagram to show how a lamp can be connected to a simple cell so that it may be switched off when it is not used.
    4. In what direction does current flow in an electrical circuit?
    5. Define energy.
    6. Name some common forms of energy and state two broad categories into which all forms of energy may be classified.
    7. State the law of conservation of energy.
    8. What is a renewable energy source? State some examples of renewable energy sources.
    9. What is a non-renewable energy source? State some examples of non-renewable energy sources.
    10. Discuss the advantages and disadvantages of the following alternative energy sources:
      1. Solar energy,
      2. Wind energy,
      3. Hydro-electric energy,
      4. Biomass.

GRADE 8

  1. Read and underline/highlight the main points in Chapter 4: Pressure.
  2. Read and underline/highlight the main points in Chapter 5: Magnetism and its Uses.
  3. Using the notes in your copybook and textbook, prepare a one sheet (two pages) summary of the chapters Pressure and Magnetism & its Uses. You will have to recite (learn by heart) your summary one to two weeks before the first term examinations. Your summary should be in question (in red ink) and answer (in blue ink) format and should answer the following questions:
    1. Define pressure and state its unit of measurement.
    2. State the formulae used to calculate pressure, force and area.
    3. With the help of a labelled diagram, describe how you will show that the pressure in a liquid increases with depth.
    4. Draw the diagram of an apparatus which can be used to show that the pressure in a liquid does not depend on its shape.
    5. On what factors does the pressure in a liquid depend?
    6. What is atmospheric pressure and with what instrument is it measured?
    7. State some properties of magnets?
    8. List four magnetic materials.
    9. State the law of magnetism.
    10. Why is repulsion the only sure way of testing the pole of a magnet?
    11. State some uses of magnets and electromagnets.

GRADE 9 (NATIONAL CERTIFICATE OF EDUCATION ASSESSMENT)

  1. Read and underline/highlight the main points in Chapter 4: Energy. Heat and Temperature.
  2. Read and underline/highlight the main points in Chapter 5: Motion.
  3. Read and underline/highlight the main points in Chapter 6: Electricity 2.
  4. Using the 2020 Syllabus prepare a three-sheet (six pages) summary of the chapters Energy, Heat & Temperature, Motion and Electricity 2. You will have to recite your summary one to two weeks before the second term examinations. Your summary should be in question (in red ink) and answer (in blue ink) format and should answer the following questions:
    1. List some non-renewable sources of energy that are used to produce electricity.
    2. List other renewable sources of energy that are used to produce electricity.
    3. List some polluting sources of energy for electricity production.
    4. List other non-polluting sources of energy for electricity production.
    5. What is heat and how is it different from temperature?
    6. What is thermal expansion and thermal contraction?
    7. List some uses of thermal expansion of matter.
    8. With the help of labelled diagrams describe how you will show that the following expand on heating and contract on cooling:
      1. a solid
      2. a liquid
      3. a gas
    9. List some dangers of thermal expansion of matter.
    10. Using a few examples, explain what is meant by a scalar quantity.
    11. Using a few examples, explain what is meant by a vector quantity.
    12. In what way adding two scalar quantities is different from adding two vector quantities?
    13. Define the following terms:
      1. Distance
      2. Displacement
      3. Speed
      4. Velocity
      5. Acceleration
    14. State the formulae, symbols and units for each of the following:
      1. Speed
      2. Velocity
      3. Average speed
      4. Average velocity
      5. Acceleration
    15. How are the following quantities calculated on a velocity-time graph:
      1. acceleration
      2. Displacement
    16. Draw a labelled speed time graph for an object which is:
      1. at rest
      2. moving with constant or uniform speed
      3. moving with constant or uniform acceleration
      4. Moving with constant or uniform deceleration or retardation
    17. Draw a labelled diagram to represent the following components of electric circuits:
      1. Cell and battery
      2. Bulb or lamp
      3. Switch
      4. Resistor
    18. Define the following terms:
      1. Current
      2. Electromotive force (e.m.f)
      3. Potential difference
      4. Electrical resistance
    19. State the formulae, symbols and units for the following:
      1. Current, in terms of electrical charge and time
      2. Voltage, in terms of work done and electrical charge.
      3. Potential difference, in terms of current and electrical resistance.
    20. For resistors connected in series:
      1. What formula relates the p.d across the whole circuit to the p.d's in the series circuit?
      2. How is the effective resistance of the circuit calculated in terms of the resistance of each resistor in series?
    21. For resistors connected in parallel:
      1. What can you say about the p.d across the battery compared to the p.d across each of the resistor in parallel?
      2. What formula relates the main current to the current through each resistor in parallel?
      3. How is the effective resistance of the circuit calculated in terms of the resistance of each resistor in parallel?

GRADE 10

  1. Read and underline/highlight the main points in Unit 8: Energy Sources and Transfer of Energy. Pages 73-74 end-of-chapter questions 6.3 and 6.8. Page 81 End-of-chapter question 7.4. Page 88-89 End-of-chapter question 8.5.
  2. Read and underline/highlight the main points in Unit 9: Transfer of Thermal Energy. Pages 125-126 End-of-chapter questions 11.2 and 11.4.
  3.  Read and underline/highlight the main points in Unit 10: Temperature. Page 115 End-of-chapter questions 10.1 and 10.3
  4. Read and underline/highlight the main points in Unit 11: Thermal Properties of Matter. Page 113 Question 11. Page 114 Questions 14 and 15.
  5. Read and underline/highlight the main points in Unit 12: Kinetic Model of Matter. Page 101 End-of-chapter questions 9.2, 9.4 and 9.6.
  6. Read and underline/highlight the main points in Unit 13: General Wave Properties. Pages 164-165 End-of-chapter questions 14.1 to 14.4.
  7. Prepare a summary containing all Physics Formulae, symbols and units.
  8. Prepare another summary containing Physics Definitions.
  9. Recopy Physics Experiments and Labelled Diagrams in a small copybook.
  10. You will have to recite (learn by heart) the Physics Formulae and Definitions & Terms one to two weeks before the second term examinations.
  11. A second, written test based on Physics Experiments and Labelled Diagrams is also scheduled one to two weeks before the second term examinations.

GRADE 11 (SCHOOL CERTIFICATE)

  1. Read and underline/highlight the main points in Unit 22: Electromagnetism. Exercise 22 Section A Multiple Choice Questions 1 to 5. Section B Structured Questions 6 and 7.
  2. Read and underline/highlight the main points in Unit 23: Electromagnetic Induction. Exercise 23 Section A Multiple Choice Questions 1 to 5. Section B Structured Questions 7 and 8(c).
  3. Read and underline/highlight the main points in Unit 24: Introductory Electronics. Exercise 24 Section A Multiple Choice Questions 1 to 4. Section B Structured Questions 3 and 5.
  4. Read and underline/highlight the main points in Unit 26: Radioactivity and in Unit 27: The Nuclear Atom. Exercise 25 Section A Multiple Choice Questions 1 to 5. Section B Structured Questions 6 and 7.
  5. Prepare a summary containing all Physics Formulae, symbols and units.
  6. Prepare another summary containing all Physics Definitions.
  7. Recopy all Physics Experiments and Labelled Diagrams in a small copybook.
  8. You will have to recite (learn by heart) the Physics Formulae and Definitions & Terms one to two weeks before the second term examinations.
  9. A second, written test based on Physics Experiments and Labelled Diagrams is also scheduled one to two weeks before the second term examinations.
  10. Print and work out November 2011 Paper 4 Alternative-to-Practical.
  11. Print and work out November 2011 Paper 1 Multiple Choice.
  12. Print and work out November 2011 Paper 2 Theory.