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Friction — Science STD 8 — Question

Gujarat BoardEnglish MediumSTD 8ScienceFriction1 Mark
MCQ
A spring balance can be used to measure:
  • A
    Mass of an object and force acting on an object.
  • B
    Force acting on an object and density of an object.
  • ✓
    Force acting on an object and weight of an object.
  • D
    Weight of an object.
✓

Answer

Correct option: C.
Force acting on an object and weight of an object.
The spring balance is a device which is used for measuring force acting on an object. The spring balance contain a coiled spring which gets stretched when a force is applied to its free end or hook end. When the spring balance is held vertically, it is said to measure the weight of an object hung from its hook, because weight of an object is also a force. Therefore, a spring balance is a device, used to measure force acting on an object and weight of an object.

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