The classroom experiment and take-home activities are practical demonstrations of force and perception by using paper clips and rubber bands to explore Hooke's Law and the relationship between force and stretch.
The student's classroom experiment deals with the perception of force and weight differences between the left and right hands using paper clips. This experiment is an example of force standards, illustrating how individuals perceive weight and the force needed to determine a difference. Later, the students performed a similar experiment with psychology textbooks, which likely served to show the difference in perception of heavier objects.
In the Take-Home Experiment, students can discover the relationship between the number of items attached to a rubber band and the amount of stretch it undergoes. This experiment is tied to Hooke's Law, which describes the directly proportional relationship between the force applied to a spring and the extension, provided the elastic limit is not exceeded. Students can also study how multiple forces, like pulling the weights to the side with a pencil, affect the stretch of the rubber band.