Science PMR By M Smkdmscience

10 Questions | By Ajeyra | Last updated: Mar 21, 2022 | Total Attempts: 334

Questions

Settings

Create your own Quiz

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