Your bathroom scale is technically lying to you about your weight
In short: When you step on a scale and see a number in kilograms, you aren't measuring the amount of matter in your body. You are actually measuring a force. This video clarifies the fundamental physics distinction between mass and weight.
While people often use 'weight' and 'mass' interchangeably, they represent different physical concepts. Mass is measured in kilograms and represents the quantity of matter in an object. Weight, however, is a force—the pull of gravity on that mass—and should technically be measured in Newtons.
The video explains how bathroom scales function by measuring this gravitational force but displaying it as a mass value for convenience. It serves as an educational tool to help students distinguish between these core principles of motion and physics.
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Sources
- Summary by Intellect · source: Weight, Force, Mass & Gravity | Forces & Motion | Physics | FuseSchool
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