why does iron filings get stuck to a magnet? describe in brief the working of a spring balance - Cass 8th Ch- Force And Pressure
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Iron fillings get stuck to a magnet because iron is attracted towards magnet. When an iron filling finds itself in a magnetic field it becomes magnetised. Then it attracts towards magnet mostly at the poles because magnetic field is so powerful at the poles of magnet.
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Ans 1 Iron filings get stuck to a magnet because iron filling are metal hence attracted to a magnet.
Ans 2 It ( spring balance) consists of a spring fixed at one end with a hook to attach an object at the other.
It works by Hooke's Law, which states that the force needed to extend a spring is proportional to the distance that spring is extended from its rest position.
Therefore, the scale markings on the spring balance are equally spaced.
You may refer picture in attachment above for more understanding.
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