Good Procedures

Question 1

Why is it important to repeat readings in an experiment?

Answer 1

Repeating readings helps to identify anomalous errors and allows you to calculate an average for more accurate results.

Question 2

What is a parallax error and how can you avoid it?

Answer 2

A parallax error occurs when the line of sight is not perpendicular to the scale. To avoid it, ensure your line of sight is directly at the reading on the scale.

Question 3

Why is it important to look carefully at any scale used in an experiment?

Answer 3

Looking carefully at the scale ensures accurate readings and helps avoid misinterpretation of data.

Question 4

Why must you always include the unit of measurement in your results?

Answer 4

Including the unit ensures clarity and precision in your measurements, preventing any misunderstanding of the values.

Question 5

What should you consider about the scale of the instrument you’re using?

Answer 5

Be aware of the maximum reading the instrument can give and the smallest change in value that can be detected for accurate measurements.

Question 6

Why should you aim to use quantities towards the upper values of the scale?

Answer 6

Using quantities towards the upper values of the scale minimizes the relative error and improves measurement accuracy.