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Spring Force - Practice Questions & MCQ

Edited By admin | Updated on Sep 18, 2023 18:34 AM | #JEE Main

Quick Facts

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

  • 22 Questions around this concept.

Solve by difficulty

A spring is compressed by a distance x. If the same spring is compressed by a distance of 2x, the force required to compress it by 2x will be:

What is the relationship between k=spring constant and  l=length of spring?

Assertion: The force exerted by a spring is directly proportional to its displacement from its equilibrium position.

Reason: The spring force follows Hooke's Law, which states that the force exerted by a spring is directly proportional to its displacement from its equilibrium position.

For a Series combination of springs, the effective spring constant is given by?

For the parallel combination of springs having spring constant k \ and \ 5 k, the effective spring constant is given by?

Concepts Covered - 1

Spring Force
  1. Spring force is given by:

$
F_{s p}=-k \Delta x
$

where,
$\mathrm{F}_{\mathrm{sp}}=$ spring force
$\mathrm{k}=$ spring constant
$\Delta x=$ 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:- 

   

$\frac{1}{k_{e q}}=\frac{1}{k_1}+\frac{1}{k_2}$

  • Parallel combination:-

$k_{e q}=k_1+k_2$

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Spring Force

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