alleryWhat does a spring scale use to find weight?
ATwo equal hanging pans
BA spring of known stiffness
CA beam on a pivot point
DA floating water tank
Answer & Solution
Correct answer: B. A spring of known stiffness
1. A spring scale does not compare two masses.
2. It uses a spring of known stiffness and measures how far it stretches or compresses.
3. Two pans and a pivot belong to a balance.
_Source: Wikipedia, Weighing scale, Lead section_
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