 Temperature - Orchids The International School
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Temperature

Definition:

Temperature describes the hotness and coldness of an object or a body in some units.

Example: • Temperature helps us to measure the difference between hot and cold by measuring temperature.
• Measurement of temperature is a process.
• We measured this temperature with thermometers.
• • In thermometer temperature can measure by two units
1. Celsius
2. Fahrenheit

1. Celsius scale:

We use the symbol ‘°C’ for the Celsius scale. Example:Water freezes at 0°C and boils at 100°C. 2. Fahrenheit scale:

We use the symbol ‘°F’ for the Fahrenheit scale. Example:Water freezes at 32°F and boils at 212°F. The Celsius scale is used more than the Fahrenheit scale to measure temperature. • Temperature can be converted from one scale to another scale.
• We can say this as temperature conversion.
• In temperature conversion temperature changes one unit to another unit.

Temperature conversion

We can change the temperature Celsius scale to Fahrenheit scale also Fahrenheit scale to Celsius scale. Temperature changes Celsius scale to Fahrenheit scale

Step 1: 1st we multiply 9 with the given temperature in degrees.

Step 2: Now the value which we get from step 1 is divided by 5.

Step 3: Last we add 32 with the quotient which we get from step 2.

Step 4: Finally, we get the temperature on the Fahrenheit scale.

Example:45°C

Now we convert 45°C to the Fahrenheit scale.

Step 1: 1st we multiply 45 by 9
45 × 9 = 405

Step 2: Then, we divide 405 by 5
405 ÷ 5 = 81

Step 3: Now, we add 32 with 81.
32 + 81 = 113

Step 4: So, the final answer is 113.
Therefore, 45°C = 113°F

So, the rule is:  In formula form we have, Temperature changes Fahrenheit scale to Celsius scale

Step 1: 1st we subtract 32 from the given temperature in degrees.

Step 2: Then we multiply by 5 with the number which we get in step 1.

Step 3: Last we divide the number by 9 which we get in step 2.

Step 4: Finally, we get the temperature on the Celsius scale.

167°F

Now we convert 167°F on the Celsius scale.

Step 1: 1st we subtract 32 from 167.
167 – 32 = 135

Step 2: Now we multiply 135 by 5.
135 × 5 = 675

Step 3: Lastly, we divide 675 by 9.
675 ÷ 9 = 75

Step 4: So, the final result is 75.
Therefore, 167°F = 75°C In formula form we have,   • -