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In an experiment, a student measures the mass of an object as 200 g with an unce

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Question: In an experiment, a student measures the mass of an object as 200 g with an uncertainty of ±5 g. What is the range of possible values for the mass?

Options:

  1. 195 g to 205 g
  2. 200 g to 210 g
  3. 195 g to 210 g
  4. 200 g to 205 g

Correct Answer: 195 g to 205 g

Solution: 

Range = Measured value ± Uncertainty = 200 g ± 5 g = 195 g to 205 g.

In an experiment, a student measures the mass of an object as 200 g with an unce

Practice Questions

Q1
In an experiment, a student measures the mass of an object as 200 g with an uncertainty of ±5 g. What is the range of possible values for the mass?
  1. 195 g to 205 g
  2. 200 g to 210 g
  3. 195 g to 210 g
  4. 200 g to 205 g

Questions & Step-by-Step Solutions

In an experiment, a student measures the mass of an object as 200 g with an uncertainty of ±5 g. What is the range of possible values for the mass?
  • Step 1: Identify the measured value of the mass, which is 200 g.
  • Step 2: Identify the uncertainty, which is ±5 g.
  • Step 3: Calculate the lower limit of the range by subtracting the uncertainty from the measured value: 200 g - 5 g = 195 g.
  • Step 4: Calculate the upper limit of the range by adding the uncertainty to the measured value: 200 g + 5 g = 205 g.
  • Step 5: Combine the lower and upper limits to find the range of possible values: 195 g to 205 g.
  • Measurement and Uncertainty – Understanding how to express a measured value along with its uncertainty to determine a range of possible values.
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