Change in effect of force with area of contact in Force – Class 8 Science Experiment

Chapter Name: Force

Activity Name: Change in effect of force with area of contact in Force

Activity Description:

In this experiment, we will observe how the application of force can change the shape of different objects. The focus is on understanding the relationship between the force applied and the area of contact with the object. By examining the changes, we can determine whether they are temporary or permanent.

Required Items:

  1. Various objects with different shapes and sizes (e.g., balls, cubes, cylinders, etc.)
  2. Force-applying tools (e.g., hands, mallets, weights, etc.)

Step by Step Procedure:

  1. Select different objects of varying shapes and sizes for the experiment.
  2. Before applying force, carefully examine and note down the initial shape of each object.
  3. Use the force-applying tools to exert pressure or impact on the objects.
  4. Observe the changes in the shapes of the objects after applying force.
  5. Record the changes in a table, marking ‘T’ for temporary changes and ‘P’ for permanent changes.

Experiment Observations:

Note down your values in table format:

Change in effect of force with area of contact in Force - Class 8 Science Experiment


  1. Handle the objects and force-applying tools with care to avoid any accidents or injuries.
  2. Perform the experiment in a controlled environment to ensure accurate observations.
  3. Use appropriate force levels to avoid causing excessive damage to the objects.

Lesson Learnt from Experiment:

The experiment demonstrates that when a force is applied to an object, it can result in either a temporary change in shape or a permanent change, depending on the nature of the object and the force exerted. This shows that force not only affects an object’s state of motion but can also alter its physical structure. Understanding this phenomenon is crucial in various real-life scenarios and industries.

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