Give an example of a casual error.
e.g. Fluctuations in measurements due to differences in observers reaction times.
Can casual errors be eliminated?
No, but they can be reduced by taking multiple measurements and averaging them.
How do casual errors affect experimental results?
They cause variations in repeated measurements, making results less precise.
Do casual errors have a systematic pattern?
No, they occur randomly and unpredictably.
How are casual errors different from systematic errors?
Systematic errors occur due to consistent faults in measurement tools or methods, while casual errors are random.
If you measure an object’s length multiple times and get slightly different values, what type of error is this?
A casual error.
Why do casual errors occur in experiments?
Due to slight variations in environmental conditions, human reaction time, and instrument limitations.
How does casual error impact scientific experiments?;
It affects the precision of measurements but does not necessarily bias the results.
What is relative error?
Relative error is the ratio of the absolute error to the actual measurement, usually expressed as a percentage.
How do you calculate relative error?
Relative Error = (Absolute Error / True Value) × 100%
What is absolute error?
Absolute error is the difference between the measured value and the true value.
What does a high relative error indicate?
It indicates a less precise measurement.
How can you reduce relative error?
Use more precise instruments and take repeated measurements.
Why is relative error important in experiments?
It helps to compare the accuracy of different measurements.
What is a good relative error percentage in scientific experiments?;
Typically, a relative error below 5% is considered acceptable.
