Define ideal spring .

An ideal spring is a spring that has negligible mass and exerts a force that is proportional to the change in its length as measured from its relaxed length.

What does the minus sign in Hooke's law show?

The force exerted by a spring is a restoring force : it acts toward the equilibrium position.

What does the slope of a force-versus-extension graph give for an ideal spring?

The spring constant . The graph is a straight line through the origin.

The stiffer a spring, the .......... its spring constant.

The stiffer a spring, the greater its spring constant.

True or False? Hooke's law applies only when an ideal spring is stretched.

False. Hooke's law applies to both extensions and compressions .

AP®PhysicsCollege BoardPhysics 1: Algebra-BasedFlashcardsUnit 2: Force & Translational DynamicsSpring Forces

Spring Forces (College Board AP® Physics 1: Algebra-Based): Flashcards

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FrontHooke's Law
Define ideal spring.
FrontHooke's Law
State the equation for Hooke's law.
BackHooke's Law
${\vec{F}}_{s} = - k ∆ \vec{x}$
${\vec{F}}_{s}$ = force exerted by the spring (N)
$k$ = spring constant (N/m)
$∆ \vec{x}$ = change in length (m)

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Cards in this collection (8)

Define ideal spring.
An ideal spring is a spring that has negligible mass and exerts a force that is proportional to the change in its length as measured from its relaxed length.
State the equation for Hooke's law.
${\vec{F}}_{s} = - k ∆ \vec{x}$
- ${\vec{F}}_{s}$ = force exerted by the spring (N)
- $k$ = spring constant (N/m)
- $∆ \vec{x}$ = change in length (m)
What does the minus sign in Hooke's law show?
The force exerted by a spring is a restoring force: it acts toward the equilibrium position.
What does the slope of a force-versus-extension graph give for an ideal spring?
The spring constant. The graph is a straight line through the origin.
State the effective spring constant for two springs in parallel.
$k_{eff} = k_{1} + k_{2}$
Both springs have the same extension.
State the effective spring constant for two springs in series.
$k_{eff} = \frac{k_{1} k_{2}}{k_{1} + k_{2}}$
Both springs exert the same force.
The stiffer a spring, the .......... its spring constant.
The stiffer a spring, the greater its spring constant.
True or False?
Hooke's law applies only when an ideal spring is stretched.
False.
Hooke's law applies to both extensions and compressions.

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