MCQ on Temperature and its Measurement Class 6
Class 6 Science Chapter 7 MCQ Temperature and its Measurement
Multiple Choice Questions
Question 1.
Name the device which is used to measure the degree of coldness or hotness of an object ?
(a) Voltmeter
(b) Thermometer
(c) Barometer
(d) Ammeter
Answer:
(b) Thermometer
Question 2.
The normal temperature of human body is
(a) 37 K
(b) 37° C
(c) 37° F
(d) None of these
Answer:
(b) 37° C
Question 3.
The temperature scale that has lower fixed point at 0° C and the upper fixed point at 100° C is called
(a) kelvin scale
(b) celsius scale
(c) Fahrenheit scale
(d) absolute scale.
Answer:
(b) celsius scale
Question 4.
Digital thermometers available these days for measuring temperature use:
(a) Alcohol
(b) Water
(c) Mercury
(d) None of these
Answer:
(d) None of these
Question 5.
The range of laboratory thermometer is from -10° C to ________
(a) 90° C
(b) 100° C
(c) 110° C
(d) 120° C
Answer:
(c) 110° C
Question 6.
The range of Fahrenheit scale is from 32° F to-
(a) 212° F
(b) 221° F
(c) 273° F
(d) 110° F
Answer:
(a) 212° F
Question 7.
The normal body temperature of a boy is 98.6° F. The temperature in celsius scale is
(a) 73° C
(b) 37° C
(c) 35° C
(d) 53° C
Answer:
(b) 37° C
Question 8.
One litre of water at 20° C mixed with the same volume of water at 40° C. The temperature of the mixture will be
(a) 60° C
(b) 20° C
(c) between 20° C and 40° C
(d) between 40° C and 60° C
Answer:
(c) between 20° C and 40° C
Question 9.
Which of the following features are that of a clinical thermometer?
(a) short temperature range and wide temperature range.
(b) wide temperature range and alcohol filled glass bulb.
(c) short temperature range and constriction in glass tube.
(d) wide temperature range and constriction in glass tube.
Answer:
(c) short temperature range and constriction in glass tube.
Question 10.
One calorie is nearly equal to
(a) 1 J
(b) 1 / 4.2 J
(c) 4.2 J
(d) 4200 J
Answer:
(c) 4.2 J
Question 11.
What is temperature?
(a) The amount of heat in an object.
(b) The colour of an object.
(c) The weight of an object.
(d) The size of an object.
Answer:
(a) The amount of heat in an object.
Question 12.
Which of the following is used to measure temperature?
(a) Thermometer
(b) Hydrometer
(c) Voltmeter
(d) None of these
Answer:
(a) Thermometer
Question 13.
What unit 1is used measure temperature in the metric system?
(a) Kelvin
(b) Celsius
(c) Fahrenheit
(d) None of these
Answer:
(b) Celsius
Question 14.
Which temperature scale uses the freezing point of water as O degrees and the boiling point of water as 100 degrees?
(a) Celsius
(b) Fahrenheit
(c) Kelvin
(d) None of these
Answer:
(a) Celsius
Question 15.
What is the boiling point of water in Celsius?
(a) 100°C
(b) 0°C
(c) 212°C
(d) 50°C
Answer:
(a) 100°C
Assertion-Reason Type Questions
Directions (Q. No. 1 to 5): The question below consists of an Assertion (A) and a Reason (R). Use the following key to choose the appropriate answer.
(a) Both A and R are, true and R is the correct explanation of A.
(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
1. Assertion (A): A clinical thermometer has a scale in the range of 370 C to 45° C.
Reason (R): The normal temperature of human body is 370 C.
Answer:
(d) A is false but R is true.
2. Assertion (A): Room temperature is typically considered around 25°C.
Reason (R): It is a comfortable temperature range for most indoor activities.
Answer:
(b) Both A and R are true but R is not the correct explanation of A.
3. Assertion (A): A clinical thermometer is designed to measure body temperature accurately.
Reason (R): It has a narrow range suitable for measuring human body temperature.
Answer:
(a) Both A and R are, true and R is the correct explanation of A.
4. Assertion (A): The mercury used in mercury thermometers can be hazardous if the thermometer breaks.
Reason (R): Mercury is a toxic substance that can cause health and environmental risks if not handled properly.
Answer:
(a) Both A and R are, true and R is the correct explanation of A.
Given below are two statements, one labelled as Assertion (A) and the other labelled as Reason (R).
(a) Both (A) and (R) are true and (R) is the correct explanation of (A).
(b) Both (A) and (R) are true and (R) is not the correct explanation of (A).
(c) (A) is true but (R) is false.
(d) (A) is false but (R) is true.
Question 1.
Assertion (A) : A clinical thermometer has a very short range of temperature from 35° C to 42° C.
Reason: The temperature of human body normally does not go below 35° C or above 42° C.
Answer:
(a) Both (A) and (R) are true and (R) is the correct explanation of (A).
Question 2.
Assertion (A) : Now-a-days, digital thermometer are used.
Reason: Digital thermometer do not use mercury.
Answer:
(b) Both (A) and (R) are true and (R) is not the correct explanation of (A).
Question 3.
Assertion (A) : We can read the correct body temperature of the patient even after removing the thermometer bulb from his mouth.
Reason : The kink prevents the mercury level in the thermometer tube falling on its own.
Answer:
(a) Both (A) and (R) are true and (R) is the correct explanation of (A).
Question 4.
Assertion (A) : A clinical thermometer is used for measuring body temperature.
Reason : Normal temperature of a healthy human adult is taken to be 37° F.
Answer:
(c) (A) is true but (R) is false.
Question 5.
Assertion (A) : The range of laboratory thermometer is from -10° C to 100° C
Reason : The S.I. unit for temperature is kelving.
Answer:
(d) (A) is false but (R) is true.
Fill in the Blanks
Complete the following with a suitable word/ words:
1. Temperature is a measure of the ___________ of an object or a place.
Answer:
hotness or coldness
2. The unit used to measure temperature is ___________
Answer:
degree Celsius
3. To measure temperature, we use a device called a ___________
Answer:
thermometer
4. Water freeze at ___________ degree Celsius.
Answer:
0
5. The degree of hotness of an object is called its ________.
Answer:
Temperature
6. A clinical thermometer can read temperature upto ________.
Answer:
42° C
7. Temperature is measured in ________.
Answer:
° C
8. The thermometer used for measuring body temperature is called ________.
Answer:
clinical thermometer
9. Temperature of boiling water can not be measured with a ________ thermometer.
Answer:
clinical
10. Normal temperature of a healthy human adult is taken to be ________.
Answer:
37° C
11. Laboratory thermometers have a temperature range from ________.
Answer:
-10° C to 110° C
12. A clinic thermometer has a ________ in its glass tube just above the bulb.
Answer:
kink
13. Now-a-days, ________ thermometer are used that do not use mercury.
Answer:
digital
True/False
Write true or false against the following statements:
1. The boiling point of water is higher on the Fahrenheit scale than on the Celsius scale.
Answer:
False
2. The temperature of a human body is typically around 88.6 °F or 37°c.
Answer:
False
3. Temperature can be measured in units other than degrees, such as Kelvin (K).
Answer:
True
4. An infrared thermometer measures temperature by touching the surfaces of an object.
Answer:
False
5. A clinical thermometer should be cleaned with alcohol before use.
Answer:
True
6. A laboratory thermometer can be usêd to measure the body temperature of humans.
Answer:
False
7. The normal temperature of a healthy person is 37° C is Fahrenheit scale.
Answer:
False
8. A clinical thermometer cannot be used to measure high temperatures.
Answer:
True
9. The clinical thermometer has a large temperature range.
Answer:
False
10. A laboratory thermometer measures temperature upto 0.1° C.
Answer:
False
11. The thermometer used for measuring the temperature of human body is called clinical thermometer.
Answer:
True
12. Digital thermometers do not use mercury.
Answer:
True
13. The S.I. unit of temperature is kelvin (k).
Answer:
True
14. Commonly used units of temperature are degree celsius and degree Fahrenheit (°F).
Answer:
True
Match the following:
Question 1.
| Column I | Column II |
| (i) Room temperature | (a) Around 37 °C |
| (ii) Body temperature | (b) 0 °C |
| (iii) Freezing temperature of water | (c) 100 °C |
| (iv) Boiling point of water | (d) 20-25 °C |
Answer:
| Column I | Column II |
| (i) Room temperature | (d) 20-25 °C |
| (ii) Body temperature | (a) Around 37 °C |
| (iii) Freezing temperature of water | (b) 0 °C |
| (iv) Boiling point of water | (c) 100 °C |
Question 2.
| Column I | Column II |
| (i) Normal temperature of a healthy human body | (a) Contain extremely toxic substance |
| (ii) Mercury thermometer | (b) 37.0 °C |
| (iii) Infrared thermometer | (c) Kelvin |
| (iv) SI unit of temperature | (d) Non-contact thermometer |
Answer:
| Column I | Column II |
| (i) Normal temperature of a healthy human body | (b) 37.0 °C |
| (ii) Mercury thermometer | (a) Contain extremely toxic substance |
| (iii) Infrared thermometer | (d)Non-Contact thermometer |
| (iv) SI unit of temperature | (c) Kelvin |
Quiz Time
Question 1.
What is the normal temperature of human body?
Answer:
37°C
Question 2.
Name the device which is used to measure temperature.
Answer:
Thermometer
Question 3.
Name the thermometer which is used to measure human body temperature.
Answer:
Clinical thermometer
Question 4.
Which metal is used in the bulb of a common thermometer?
Answer:
Mercury
Question 5.
What is SI unit of temperature?
Answer:
Kelvin (K)
Self—Assessment
Question 1.
Which of the following is used to measure temperature?
(a) Thermometer
(b) Hydrometer
(c) Voltmeter
(d) None of these
Question 2.
What unit is used measure temperature in the metric system?
(a) Kelvin
(b) Celsius
(c) Fahrenheit
(d) None of these
Question 3.
Which temperature scale uses the freezing point of water as O degrees and the boiling point of water as 100 degrees?
(a) Celsius
(b) Fahrenheit
(c) Kelvin
(d) None of these
Question 4.
Assertion (A): The mercury used in mercury thermometers can be hazardous if the thermometer breaks.
Reason (R): Mercury is a toxic substance that can cause health and environmental risks if not handled properly.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
Question 5.
Match the following:
| Column I | Column II |
| (i) Room temperature | (a) Around 37°C |
| (ii) Body temperature | (b) 0°C |
| (iii) Freezing temperature of water | (c) 100°C |
| (iv) Boiling point of water | (d) 20—25°C |
(A) (i) – (b), (ii) – (a), (iii) – (d), (iv) – (c)
(B) (i) – (d), (ii) – (c), (iii) – (a), (iv) – (b)
(C) (i) – (d), (ii) – (b), (iii) – (c), (iv) – (a)
(D) (i) – (d), (ii) – (a), (iii) – (b), (iv) – (c)
Question 6.
What do you mean by temperature?
Question 7.
If a temperature is zero degrees fahrenheit, what is it in celsius?
Question 8.
What is the normal temperature of human body?
Question 9.
How was fever detected before thermometers were developed?
Question 10.
Are digital and mercury thermometers the same?
Question 11.
Why is the mercury used in the thermometers instead of water?
Question 12.
Convert 32 degree Celsius into Kelvin.
Question 13.
What is meant by absolute zero?
Question 14.
Write the meaning of room temperature.
Question 15.
Why does temperature increase and decrease during seasons?
Question 16.
Explain the term air temperature.
Question 17.
What will happen in the temperature during the winter and summer seasons?
Question 18.
Can we use a laboratory thermometer for measuring body temperature of a person?
Question 19.
How can we measure temperatures beyond the range of a clinical thermometer?
Question 20.
Can a clinical thermometer be used for measuring the temperature of boiling water or for measuring
the temperature of ice.
Question 21.
State the similarities and differences between the laboratory and clinical thermometers.
Question 22.
What are the three types of temperature measuring scales?
Question 23.
Explain the Kelvin temperature scale.