Materials Required:
l A weighing scale
Procedure:
Here’s an easy way to lose several kilograms instantly.
- Stand on the bathroom scale and raise your arms high above your head. Read the dial and note how many kilograms you weigh.
- Lower your arms rapidly to your sides. You are suddenly many kilograms lighter. Oops! A few seconds later, your normal weight returns.
This Is What Happens:
For every action, there is an equal and opposite reaction—this is one of Sir Isaac Newton’s famous laws of physics. Bringing your arms down is an action that you created. The opposite reaction is a force that pushes up, and this was created by the scale’s platform. The mechanical components of the scale detected the temporary upward force, and this was recorded as weight loss.
