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If the mass of an object is measured as 10.0 kg with an uncertainty of ±0.2 kg,
If the mass of an object is measured as 10.0 kg with an uncertainty of ±0.2 kg, what is the percentage error?
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Practice Questions
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Q1
If the mass of an object is measured as 10.0 kg with an uncertainty of ±0.2 kg, what is the percentage error?
2%
0.2%
0.02%
0.5%
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Percentage error = (absolute error / measured value) * 100 = (0.2 / 10.0) * 100 = 2%.
Questions & Step-by-step Solutions
1 item
Q
Q: If the mass of an object is measured as 10.0 kg with an uncertainty of ±0.2 kg, what is the percentage error?
Solution:
Percentage error = (absolute error / measured value) * 100 = (0.2 / 10.0) * 100 = 2%.
Steps: 7
Show Steps
Step 1: Identify the measured value of the mass, which is 10.0 kg.
Step 2: Identify the absolute error, which is the uncertainty of the measurement, ±0.2 kg.
Step 3: Use the formula for percentage error: Percentage error = (absolute error / measured value) * 100.
Step 4: Substitute the values into the formula: Percentage error = (0.2 / 10.0) * 100.
Step 5: Calculate the division: 0.2 divided by 10.0 equals 0.02.
Step 6: Multiply the result by 100 to convert it to a percentage: 0.02 * 100 equals 2%.
Step 7: Conclude that the percentage error is 2%.
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