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Spring Force MCQ - Practice Questions with Answers

Edited By admin | Updated on Sep 25, 2023 25:23 PM | #NEET

Quick Facts

  • Spring Force is considered one of the most asked concept.

  • 9 Questions around this concept.

Solve by difficulty

In Series combination, the effective spring constant is given by

A spring is compressed by 0.2 m, and it exerts a force of 10 N. What will be the force exerted by the spring if it is compressed by 0.4 m?

A block of mass 1 \mathrm{kg} is placed over a frictionless bar as shown in the figure. Initially, the block was at rest, and spring was in its natural length. If a horizontal bar starts rotating about a vertical axis about its one end with constant angular velocity of 10 \mathrm\ {rad} / \mathrm{s}. Then the required spring constant to keep the block in equilibrium:

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Concepts Covered - 1

Spring Force
  1. Spring force is given by:

F_{sp}=-k\Delta x

where,

Fsp=spring force

k= spring constant

Δx=net elongation or compression in the spring

2.  Force at every point in a massless spring remains same, so we can solve questions of spring by considering it as string and spring force as tension.

3.    Spring constant:- 

k\alpha\frac{1}{l}

Where, k=spring constant

             l=length of spring

4.    Combination of Spring:-

  • Series combination:- 

\frac{1}{k_{eq}}=\frac{1}{k_{1}}+\frac{1}{k_{2}}

  • Parallel combination:-

k_{eq}=k_{1}+k_{2}

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Spring Force

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