JAMB CBT PRACTICE TEST

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BIOLOGY LESSON NOTE ON HUMAN KIDNEY

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Lesson Note on the Human Kidney Topic: The Human Kidney Duration: 40 minutes Specific Objectives: By the end of the lesson, students should be able to: Define the kidney and state its location in the human body. Identify and describe the structure and functions of the kidney. Explain the processes involved in urine formation (filtration, reabsorption, and secretion). Describe how the kidney contributes to homeostasis. Identify common kidney-related diseases and how to prevent them. Evaluate the importance of maintaining kidney health. Lesson Content: 1. Introduction to the Human Kidney The kidneys are vital organs in the human body responsible for filtering waste from the blood and regulating water and electrolyte balance. They are part of the excretory system and play a crucial role in homeostasis. Location: The kidneys are located in the abdominal cavity, on either side of the spine, just below the rib cage. Each kidney is bean-shaped and about the size of a fi...
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WAEC Physics Past Questions and Answers

 

Introduction

Physics is a core science subject in WAEC that deals with matter, energy, motion, force, and their interactions. It explains how the natural world works and is highly practical and calculation-based. This post provides 100 WAEC-standard Physics objective questions and answers to help students prepare effectively for examination success.

OBJECTIVE QUESTIONS (1–100)

Instruction: Choose the correct option A–D.

1–20: Measurements & Basic Concepts

  1. The SI unit of force is
    A. joule B. newton C. watt D. pascal
    Answer: B

  2. The SI unit of energy is
    A. watt B. joule C. newton D. ampere
    Answer: B

  3. The instrument for measuring temperature is
    A. barometer B. thermometer C. hygrometer D. ammeter
    Answer: B

  4. The instrument for measuring mass is
    A. spring balance B. beam balance C. voltmeter D. ammeter
    Answer: B

  5. Speed is defined as
    A. distance/time B. force/mass C. work/time D. mass/volume
    Answer: A

  6. Velocity is
    A. speed with direction B. speed only C. force D. acceleration
    Answer: A

  7. Acceleration is
    A. change in velocity/time B. distance/time C. force/mass D. work/time
    Answer: A

  8. The unit of velocity is
    A. m/s B. kg C. joule D. watt
    Answer: A

  9. Scalar quantity has
    A. magnitude only B. direction only C. both D. none
    Answer: A

  10. Vector quantity has
    A. magnitude only B. direction only C. both magnitude and direction D. none
    Answer: C

  11. The instrument for measuring time is
    A. barometer B. clock C. ammeter D. thermometer
    Answer: B

  12. Density is
    A. mass/volume B. force/area C. work/time D. pressure/volume
    Answer: A

  13. The unit of density is
    A. kg/m³ B. m/s C. N/m² D. joule
    Answer: A

  14. Weight is measured in
    A. kg B. newton C. meter D. watt
    Answer: B

  15. Mass is measured in
    A. newton B. kilogram C. joule D. meter
    Answer: B

  16. The force of gravity is called
    A. mass B. weight C. friction D. tension
    Answer: B

  17. A stop watch measures
    A. speed B. time interval C. force D. energy
    Answer: B

  18. A physical balance measures
    A. volume B. mass C. force D. pressure
    Answer: B

  19. The SI unit of pressure is
    A. joule B. pascal C. newton D. watt
    Answer: B

  20. Pressure is
    A. force/area B. mass/volume C. work/time D. distance/time
    Answer: A

21–40: Motion & Forces

  1. A body at rest has
    A. velocity B. no motion C. acceleration D. force
    Answer: B

  2. Newton’s first law is also called
    A. law of motion B. law of inertia C. law of energy D. law of force
    Answer: B

  3. Inertia is the ability of a body to
    A. move B. resist change in state C. accelerate D. stop instantly
    Answer: B

  4. Force is measured in
    A. joule B. newton C. watt D. ampere
    Answer: B

  5. Work is done when
    A. force causes displacement B. object is at rest C. no force acts D. no motion
    Answer: A

  6. The unit of work is
    A. watt B. joule C. newton D. pascal
    Answer: B

  7. Power is
    A. work/time B. force/mass C. distance/time D. energy/volume
    Answer: A

  8. The unit of power is
    A. watt B. joule C. newton D. volt
    Answer: A

  9. Energy is the ability to
    A. stop motion B. do work C. create mass D. measure force
    Answer: B

  10. Kinetic energy is energy due to
    A. position B. motion C. heat D. light
    Answer: B

  11. Potential energy is energy due to
    A. motion B. position C. sound D. electricity
    Answer: B

  12. Friction is a force that
    A. assists motion B. opposes motion C. increases speed D. creates energy
    Answer: B

  13. The force that attracts objects to Earth is
    A. friction B. gravity C. tension D. thrust
    Answer: B

  14. Weight depends on
    A. mass and gravity B. volume C. speed D. pressure
    Answer: A

  15. Mass is constant but weight
    A. changes with gravity B. never changes C. is zero always D. is speed
    Answer: A

  16. A body moving in a circle experiences
    A. zero force B. centripetal force C. gravity only D. friction only
    Answer: B

  17. The SI unit of force is
    A. joule B. newton C. watt D. ampere
    Answer: B

  18. Momentum is
    A. mass × velocity B. force × time C. work × distance D. energy/time
    Answer: A

  19. The principle of conservation of energy states that energy
    A. is created B. is destroyed C. cannot be created or destroyed D. disappears
    Answer: C

  20. A simple machine makes work
    A. harder B. easier C. impossible D. slower
    Answer: B

41–60: Heat, Light & Sound

  1. Heat is a form of
    A. force B. energy C. mass D. pressure
    Answer: B

  2. Temperature is measured in
    A. joule B. kelvin C. newton D. watt
    Answer: B

  3. Heat transfer by direct contact is
    A. convection B. conduction C. radiation D. reflection
    Answer: B

  4. Heat transfer in liquids and gases is
    A. conduction B. convection C. radiation D. reflection
    Answer: B

  5. Heat transfer through vacuum is
    A. conduction B. convection C. radiation D. friction
    Answer: C

  6. The unit of heat is
    A. joule B. watt C. newton D. pascal
    Answer: A

  7. The boiling point of water is
    A. 0°C B. 50°C C. 100°C D. 150°C
    Answer: C

  8. The freezing point of water is
    A. 0°C B. 100°C C. 50°C D. 10°C
    Answer: A

  9. Sound travels fastest in
    A. air B. water C. vacuum D. solid
    Answer: D

  10. Sound cannot travel in
    A. solids B. liquids C. gases D. vacuum
    Answer: D

  11. Light travels in
    A. straight line B. curve C. circle D. zigzag
    Answer: A

  12. The speed of light is highest in
    A. air B. water C. vacuum D. glass
    Answer: C

  13. Reflection occurs in
    A. mirrors B. glass only C. water only D. air
    Answer: A

  14. Refraction is bending of
    A. light B. sound C. force D. heat
    Answer: A

  15. A convex lens is used for
    A. diverging light B. magnifying C. blocking light D. reflecting sound
    Answer: B

  16. A concave lens is
    A. converging B. diverging C. reflecting D. absorbing
    Answer: B

  17. The image formed in a plane mirror is
    A. real B. inverted C. virtual D. enlarged
    Answer: C

  18. Echo is reflection of
    A. light B. sound C. heat D. force
    Answer: B

  19. Sound is produced by
    A. light B. vibration C. pressure D. heat
    Answer: B

  20. Frequency of sound is measured in
    A. joule B. hertz C. watt D. newton
    Answer: B

61–80: Electricity & Magnetism

  1. The SI unit of electric current is
    A. volt B. ampere C. ohm D. watt
    Answer: B

  2. Current is flow of
    A. heat B. charge C. light D. mass
    Answer: B

  3. The device for measuring current is
    A. voltmeter B. ammeter C. thermometer D. barometer
    Answer: B

  4. Voltage is measured in
    A. volt B. ampere C. ohm D. watt
    Answer: A

  5. Resistance is measured in
    A. ohm B. volt C. watt D. ampere
    Answer: A

  6. Ohm’s law is
    A. V = IR B. F = ma C. E = mc² D. P = F/A
    Answer: A

  7. A conductor allows
    A. no current B. current flow C. heat only D. light only
    Answer: B

  8. An insulator
    A. conducts electricity B. blocks electricity C. creates electricity D. stores energy
    Answer: B

  9. Electric power is measured in
    A. watt B. joule C. newton D. ampere
    Answer: A

  10. A fuse protects
    A. circuit B. battery C. wire only D. switch
    Answer: A

  11. Magnet attracts
    A. wood B. plastic C. iron D. glass
    Answer: C

  12. Like poles of magnet
    A. attract B. repel C. neutralize D. disappear
    Answer: B

  13. Magnetic field is strongest at
    A. center B. poles C. middle D. outside
    Answer: B

  14. Earth behaves like a
    A. conductor B. magnet C. insulator D. resistor
    Answer: B

  15. Electric circuit must be
    A. open B. closed C. broken D. loose
    Answer: B

81–100: Modern Physics & Applications

  1. Radioactivity is emission of
    A. heat B. particles C. sound D. force
    Answer: B

  2. Alpha particles are
    A. electrons B. helium nuclei C. photons D. neutrons
    Answer: B

  3. Beta particles are
    A. electrons B. protons C. neutrons D. atoms
    Answer: A

  4. Gamma rays are
    A. particles B. waves C. sound D. mass
    Answer: B

  5. Nuclear energy is released from
    A. atoms B. molecules C. cells D. light
    Answer: A

  6. The unit of electric charge is
    A. coulomb B. joule C. watt D. volt
    Answer: A

  7. Transformer is used to
    A. store energy B. change voltage C. produce light D. measure current
    Answer: B

  8. Alternating current is
    A. DC B. AC C. static D. none
    Answer: B

  9. Direct current flows in
    A. both directions B. one direction C. circles D. none
    Answer: B

  10. Solar energy comes from
    A. wind B. sun C. water D. coal
    Answer: B

  11. Nuclear fission is
    A. joining nuclei B. splitting nuclei C. burning fuel D. melting metal
    Answer: B

  12. The SI unit of frequency is
    A. watt B. hertz C. joule D. volt
    Answer: B

  13. A machine reduces
    A. energy B. effort C. mass D. gravity
    Answer: B

  14. Efficiency is
    A. useful output/input B. force × distance C. mass × velocity D. energy/time
    Answer: A

  15. Work done =
    A. force × distance B. mass × speed C. power × time D. energy × time
    Answer: A

  16. The lens used in camera is
    A. convex B. concave C. flat D. circular
    Answer: A

  17. The unit of wavelength is
    A. meter B. watt C. joule D. ampere
    Answer: A

  18. Sound cannot travel in
    A. solids B. liquids C. gases D. vacuum
    Answer: D

  19. A barometer measures
    A. temperature B. pressure C. mass D. speed
    Answer: B

  20. Pressure increases with
    A. area increase B. force increase C. volume increase D. speed decrease
    Answer: B

  21. A projectile moves under
    A. gravity only B. force only C. heat only D. light only
    Answer: A

  22. Free fall is motion under
    A. friction B. gravity only C. magnetism D. tension
    Answer: B

  23. Newton’s third law states
    A. action-reaction B. inertia C. force = mass × acceleration D. energy conservation
    Answer: A

  24. Acceleration due to gravity is
    A. 10 m/s² B. 9.8 m/s² C. 5 m/s² D. 20 m/s²
    Answer: B

  25. Physics is the study of
    A. living things B. matter and energy C. plants D. animals
    Answer: B

EXAM SUCCESS TIPS

  • Practice WAEC past questions regularly
  • Master formulas and units
  • Understand calculations, don’t memorize blindly
  • Revise motion, electricity, and heat thoroughly
  • Practice diagrams and circuit drawings
  • Solve timed CBT physics questions
  • Focus on understanding laws (Newton, Ohm, etc.)
  • Learn how to convert units correctly
  • Study practical experiments
  • Stay consistent with revision and avoid cramming

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