Question 6 of 10intermediate🔧 ApplyDiagram2 marks

Draw the scale of a thermometer in which the smallest division reads 0.5 °C. You may draw only the portion between 10 °C and 20 °C.

Correct Answer

Draw a vertical line representing the thermometer tube. Mark '10 °C' at the bottom and '20 °C' at the top of the scale portion. Between these two marks, draw 20 smaller divisions. Each small division represents 0.5 °C (since 10 °C ÷ 20 divisions = 0.5 °C per division). Label the bigger marks at every 2 °C interval: 10 °C, 12 °C, 14 °C, 16 °C, 18 °C, and 20 °C. The smaller marks between each bigger mark represent 0.5 °C increments.

Exercise: Let us enhance our learning | Q: 13 | (Page Page 17)
For More Understanding

Explanation

The chapter explains that the smallest value a thermometer can measure depends on the number of divisions between two temperature marks. To have each division read 0.5 °C, we need to calculate how many divisions fit between 10 °C and 20 °C. The range is 10 °C (20 - 10 = 10). If each division is 0.5 °C, then the number of divisions needed is 10 °C ÷ 0.5 °C = 20 divisions. So between 10 °C and 20 °C, there should be 20 small divisions, with bigger marks at every 4th division (representing 2 °C intervals).

Solution Steps

  1. Step 1: Temperature range between 10 °C and 20 °C = 10 °C

  2. Step 2: Each division should read 0.5 °C

  3. Step 3: Number of divisions needed = 10 °C ÷ 0.5 °C = 20 divisions

  4. Step 4: Draw 20 small divisions between 10 °C and 20 °C

  5. Step 5: Mark bigger divisions at every 4 small divisions (representing 2 °C intervals)

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