Question

What is spring balance? Write down its one use.​

Answer 1

Answer:

A spring balance is used for measuring the weight of an object. It has a spring, one end of which is fixed. The other end of the spring is attached to a hook to hold an object.

Answer 2

Answer:

an instrument consisting of a hook attached to the end of a spring, used for weighing things

• Measure weight or force by hanging objects from the spring scale hook. Measure loose material, such as sand, by pouring it into a plastic bag and hanging the bag from the hook. Dual scales measure from 0-1000 grams or up to 10 Newtons. Accuracy is ± 1%.
• It is calculated by dividing the change of force by the change in spring extension. For the example in the figure below, this is calculated by dividing 5 newtons by 50 mm, which gives a spring constant for this Newton spring balance of 0.1 newtons per mm extension.
• Mass, Force, and Torque Measurement

• Spring balances provide a method of mass measurement that is both simple and cheap. The mass is hung on the end of a spring, and the deflection of the spring due to the downwards gravitational force on the mass is measured against a scale.