Discovering the Force Constant of a Rubber Band: Methods and Formulas

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SUMMARY

The discussion focuses on determining the force constant of a rubber band using a 100g mass, a stopwatch, and a meter stick. Participants clarify that the 'force constant' refers to the 'spring constant', denoted as 'k'. Two key formulas are highlighted: T = 2π * √(m/k) for calculating the period of oscillation and F = -kx for relating force to displacement. These formulas provide a definitive method for calculating the spring constant based on mass and oscillation time.

PREREQUISITES
  • Understanding of Hooke's Law and the spring constant (k)
  • Familiarity with the formula for the period of oscillation (T = 2π * √(m/k))
  • Basic knowledge of oscillatory motion and forces
  • Ability to use a stopwatch and meter stick for measurements
NEXT STEPS
  • Learn how to derive the spring constant (k) from experimental data
  • Explore the relationship between mass and oscillation period in spring systems
  • Investigate the effects of varying mass on the force constant of rubber bands
  • Study advanced applications of Hooke's Law in real-world scenarios
USEFUL FOR

Students in physics, educators teaching mechanics, and anyone interested in experimental methods for measuring material properties.

jtm
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Describe two different ways to determine the force constant of a rubber band only a 100g mass, a stopwatch, and a meter stick.

I don't really understand what its asking but I don't have many formulas to choose from so I don't really know where to begin. I have like f = 1/T y = A * cos (2pi/T * delta T) etc... T = 2pi * sqrt(m/k) and F = -kx. Is it referring to the force constant or SPRING constant? Can someone give me a hint? It should be very easy but I'm having a really hard time here :cry:
 
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I think that the 'force constant' is referring to the 'spring constant'. If this is the case you can use two of your formula's above.
 
T = 2pi * sqrt(m/k) and F = -kx? ok thanks!
 
jtm said:
T = 2pi * sqrt(m/k) and F = -kx?

They're the one's :smile:
 

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