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Measurement – Temperature

Measurement – Temperature
science Square
Science Square

Measurement – Temperature

 

Temperature is defined to check how much the object is hot or cold.

 

There are two units to define the temperature:

Maths class 4 MeasurementTemperature

 

    For normal body, temperature is = 37°C = 98.6°F

Where, C = Celsius and F = Fahrenheit

Relation between Celsius and Fahrenheit:

This formula will be used in most of the questions of measurement of temperature where we need to convert C into F or vice versa.

Maths class 4 MeasurementTemperature

 

                      

Example 1: Convert 20°C to Fahrenheit.

Solution: We know that,

Therefore, Temperature in °F =  = 36 + 32 = 68°F

 

Example 2: Convert 37°F into Celsius.

Solution: We know that,

Therefore  = 2.78°C

 

 

Exercise

Question1: Convert the following temperature given in Celsius scale into Fahrenheit scale

  1. 25°C
  2. 0°C
  • 3°C
  1. 65°C
  2. 20°C

Answer: i) 77°F  ii) 32°F   iii) 104.54°F   iv) 149°F   v) 68°F

 

Question 2:  Convert the following temperature given in Fahrenheit scale into Celsius scale

  1. 200°F
  2. 175°F
  • 185°F
  1. 158°F
  2. 68°F

Answers: i) 93.33°C  ii) 79.44°C  iii) 85°C  iv) 70°C  v) 20°C

 

Recap

  • There are two scales to measure temperature i.e. Celsius and Fahrenheit.
  • The normal body temperature is 98.4°F or 37°C
  • The device used to check body temperature is called thermometer.
  • Important Formula:

Maths class 4 MeasurementTemperature

 

Quiz for Measurement – Temperature

Q.1

What is the temperature in the thermometer?



a)

42°F

b)

41°F

c)

44°F

d)

40°F

Q.2

What is the temperature in the thermometer?

a) 82°F
b) 84°F
c) 86°F
d) 80°F

Q.3

What is the temperature in the thermometer in Centigrade?

a) 18°C
b) 20°C
c) 19°C
d) 21°C

Q.4

The average temperature for December was 74°F. The average temperature for January was 12° colder. What was the average temperature for January?

a) 60°F
b) 64°F
c) 66°F
d) 62°F

Q.5

A weather station predicted the temperature on Sunday would be 96°F. If the actual temperature was 11° hotter than their prediction, what temperature was it?

a)

85°F

b)

95°F

c)

105°F

d)

107°F

Q.6

A weather station predicted the temperature on Tuesday would be 89°F. If the actual temperature was 16° colder than their prediction, what temperature was it?

a) 71°F
b) 75°F
c) 73°F
d) 77°F

Q.7

The temperature in Delhi is 94°F and the temperature of Mumbai is 78°F. How much colder is the temperature of Mumbai?

a) 12°F
b) 14°F
c) 18°F
d) 16°F

Q.8

The instructions to cook a pizza say to set the oven at 363°F. If Sam set her oven 22° warmer than the instructions said, what temperature did she set her oven?

a) 385°F
b) 375°F
c) 365°F
d) 355°F

Q.9

The temperature inside a car was 80°F. After standing in the sun for an hour the temperature in the car rose to 122° F. How much did the car warm up?

a) 40°F
b) 42°F
c) 44°F
d) 46°F

Q.10

Convert Celsius to Fahrenheit: 75°C

a) 167°F
b) 165°F
c) 163°F
d) 161°F

Your Score: 0/10

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