How is the extension of the spring measured in the experiment?2 marksIn millimetersIn metersIn inchesIn centimeters

The extension of the spring in an experiment can be measured using a ruler or a measuring tape. Here are the steps:

1. First, measure the original length of the spring without any force applied to it. This is the spring's natural length.

2. Next, apply a force to the spring by adding a weight to it. The spring will extend or stretch due to the force.

3. Measure the new length of the spring after the force has been applied.

4. The extension of the spring is then calculated by subtracting the original length from the new length.

The unit of measurement can be in millimeters, meters, inches, or centimeters, depending on the precision required for the experiment or the standard unit of measurement used in your location or field of study.