Attempt all questions.
Time: 1 hour
M.M. 30
Q1: Which of the following is used to measure human body temperature? (1 Mark)
(i) Laboratory thermometer
(ii) Digital clinical thermometer
(iii) Room thermometer
(iv) Barometer
Q2: The normal temperature of a healthy human body is __________. (1 Mark)
Q3: A hotter body has a __________ temperature than a colder body. (1 Mark)
(i) Lower
(ii) Higher
(iii) Equal
(iv) Unmeasurable
Q4: The device used to measure temperature is called a __________. (1 Mark)
Q5: What liquid is generally used in a laboratory thermometer? (1 Mark)
(i) Water
(ii) Mercury or alcohol
(iii) Oil
(iv) Milk
Q6: Name the temperature scale that is the SI standard unit for temperature. (1 Mark)
Q7: Who is known as the ‘Weather Woman of India’? (1 Mark)
Q8: Why can’t we always rely on our sense of touch to decide if an object is hot or cold? (2 Marks)
Q9: State two precautions to be taken while using a laboratory thermometer. (2 Marks)
Q10: How does a laboratory thermometer indicate temperature changes? (2 Marks)
Q11: Why are digital thermometers preferred over mercury thermometers? (2 Marks)
Q12: Describe the steps to measure your body temperature using a digital clinical thermometer. (3 Marks)
Q13: Explain why the temperature of boiling water remains constant during boiling. (3 Marks)
Q14: Discuss the role of air temperature in weather forecasting, mentioning one key contributor. (3 Marks)
Q15: A laboratory thermometer has 50 divisions between 0 °C and 100 °C. What does each division of this thermometer measure? (3 Marks)
Q16: Compare the features and uses of a clinical thermometer and a laboratory thermometer, including one limitation each. (4 Marks)
You can find the solutions of this Unit Test here: Unit Test (Solution): Temperature and its Measurement
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