Science PMR By M Smkdmscience

10 Questions | Total Attempts: 319

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Science PMR Quizzes & Trivia

Name:Class/School:Answer all question/Jawab semua soalan.


Questions and Answers
  • 1. 
    1.Temperature can be measured in        I      Joules        II    Kelvin        III   Celsius        IV   Fahrenheit
    • A. 

      I and III only

    • B. 

      II and IV only

    • C. 

      II, III and IV only

    • D. 

      I, II, III and IV

  • 2. 
    Which of the following is a source of heat?
    • A. 

      A stone

    • B. 

      A volcano

    • C. 

      A stick

    • D. 

      A mirror

  • 3. 
    3.Which of the following is not part of the human respiratory system?
    • A. 

      Trachea

    • B. 

      Ribs

    • C. 

      Pulmonary artery

    • D. 

      Intercostal muscles

  • 4. 
    4.When we inhale, why is air pushed into the lungs?
    • A. 

      The air pressure in the lungs decreases

    • B. 

      The air pressure in the lungs increases

    • C. 

      The lungs become smaller

    • D. 

      The diaphragm curves upwards

  • 5. 
    5.What are the changes that take place when we exhale?      I      The rib cage moves down      II    The outer intercostal muscles relax      III   The thoracic cavity becomes bigger      IV   Air flows from the atmosphere into the lungs
    • A. 

      I and II only

    • B. 

      III and IV only

    • C. 

      II, III and IV only

    • D. 

      I, II, III and IV

  • 6. 
    6.Which of the following is the correct sequence to show how air enters the lungs?
    • A. 

      Trachea, bronchiole, lung, alveolus

    • B. 

      Trachea, bronchus, bronchiole, alveolus

    • C. 

      Bronchus, trachea, bronchiole, lung

    • D. 

      Trachea, alveolus, bronchus, bronchiole

  • 7. 
    7.      Which of the following correctly shows the contents of inhaled air and exhaled air?        Gas Inhaled air Exhaled air I Oxygen 21% 16% II Carbon dioxide 0.03% 4% III Nitrogen 78% 87% IV Water vapour A little 50%
    • A. 

      I and II only

    • B. 

      III and IV only

    • C. 

      II, III and IV only

    • D. 

      I, II, III and IV

  • 8. 
    8..Which of the following diseases is caused by smoking cigarettes?        I      Lung cancer        II    Emphysema        III   Bronchitis       IV    Hepatitis
    • A. 

      I and II only

    • B. 

      III and IV only

    • C. 

      I, II and III only

    • D. 

      I, II, III and IV

  • 9. 
    9.Why are cigarette smokers sometimes short of breath?
    • A. 

      Their lung tissue has turned black

    • B. 

      Cigarette smoke reduces the amount of oxygen in the blood

    • C. 

      Their lung tissue contains nicotine

    • D. 

      There are many poisonous gases in their lymphatic system

  • 10. 
    10..hich of the following pollutants is carcinogenic?
    • A. 

      Tar

    • B. 

      Nitrogen dioxide

    • C. 

      Carbon monoxide

    • D. 

      Carbon dioxide

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