Question

The spring balance measures

• A. Mass of body attached to it
• B. Weight of body attached
• C. Weight of spring and body attached
• D. Mass of spring and body attached

Answer 1

The correct option is B

Weight of body attached

1. Spring balance is a simple scale with a spring attached at one end.
2. There is a hook at the other end of the spring to hold the object.
3. The spring balance works on the principle of Hooke’s law.
4. According to the law, the force required to the extent the spring is directly proportional to the distance the string is extended from the mean position.
5. The spring balance opposes the force of gravity with the force of the extended spring and measures the weight of an object.

Hence, option B is correct.