A thermometer reads 25.0 °C with an uncertainty of ±0.2 °C. What is the range of
Practice Questions
Q1
A thermometer reads 25.0 °C with an uncertainty of ±0.2 °C. What is the range of possible temperatures?
24.8 °C to 25.2 °C
24.5 °C to 25.5 °C
25.0 °C to 25.4 °C
24.0 °C to 26.0 °C
Questions & Step-by-Step Solutions
A thermometer reads 25.0 °C with an uncertainty of ±0.2 °C. What is the range of possible temperatures?
Step 1: Identify the temperature reading from the thermometer, which is 25.0 °C.
Step 2: Identify the uncertainty given, which is ±0.2 °C.
Step 3: To find the lower limit of the temperature range, subtract the uncertainty from the reading: 25.0 °C - 0.2 °C = 24.8 °C.
Step 4: To find the upper limit of the temperature range, add the uncertainty to the reading: 25.0 °C + 0.2 °C = 25.2 °C.
Step 5: Combine the lower and upper limits to express the range of possible temperatures: 24.8 °C to 25.2 °C.
Measurement Uncertainty – Understanding how to interpret and calculate the range of values based on a given measurement and its associated uncertainty.
