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Hooke’s Law

Hooke’s Law. Hooke’s Law. The force exerted on an object ( F ) is proportional to the amount of stretch or compression ( x ) and the spring constant ( k ). F = Newtons x = meters k = N/m. Hooke’s Law. Hooke’s Law mainly applies to elastic objects like springs and rubber bands

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Hooke’s Law

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  1. Hooke’s Law

  2. Hooke’s Law • The force exerted on an object (F) is proportional to the amount of stretch or compression (x) and the spring constant (k) • F = Newtons • x = meters • k = N/m

  3. Hooke’s Law • Hooke’s Law mainly applies to elastic objects like springs and rubber bands • We will mainly focus on springs • All elastic objects obey Hooke’s Law until they reach their ELASTIC LIMIT and become deformed

  4. EXAMPLES • A spring with a spring constant of 10 newtons per meter is stretched 0.5 meters. How much force is applied to the spring? • A spring with a spring constant of 15 newtons per meter is compressed with a force of 4.5 newtons. How far will the spring compress?

  5. EXAMPLES • A spring is stretched a distance of 0.4 meters with a force of 20 newtons. Calculate the spring constant of the spring.

  6. SUMMARY • Which objects does Hooke’s Law apply to? • Equation? • Which letter represents the spring constant? • Units for the spring constant? • Which kind of force acts on a spring if something is hung on the spring?

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