Instrument Precision Worksheet
A Grade 11 Science worksheet on instrument precision, significant figures, and measurement uncertainty.
Includes
Standards
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Instrument Precision Worksheet
Name:
Date:
Score:
Read each question carefully and provide your best answer based on your understanding of instrument precision and significant figures. Show all your work where applicable.
1. Which of the following best describes instrument precision?
How close a measurement is to the true value.
The consistency of multiple measurements.
The smallest unit an instrument can measure.
The absence of random errors in measurement.
2. A student measures the length of a desk as 1.50 meters. How many significant figures are in this measurement?
1
2
3
4
3. The of a measurement refers to how close it is to the true or accepted value.
4. When performing calculations with measured values, the final answer should be reported with the same number of significant figures as the least measurement.
5. A highly precise instrument will always yield accurate measurements.
True
False
6. Random errors affect the precision of a measurement, while systematic errors affect its accuracy.
True
False
7. Explain the difference between precision and accuracy in scientific measurements.
8. Consider a scenario where you are measuring the volume of a liquid using two different graduated cylinders. Cylinder A has markings every 1 mL, and Cylinder B has markings every 0.1 mL.
a. Which graduated cylinder would allow for a more precise measurement?
b. If you measure 25 mL of liquid using Cylinder A, how would you report the measurement with appropriate uncertainty?
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