7. Friction, Inclines, Systems

A cylinder is fitted with a piston beneath which is a spring. If the spring has a force constant $k$ and is compressed by a distance $x$ from its equilibrium position, what is the magnitude of the force exerted by the spring on the piston according to Hooke's Law?

A mass $m$ is hung from a vertical spring with spring constant $k$. What is the distance $y$ that the spring will stretch under the weight of the mass (assume equilibrium and ignore the mass of the spring)?

When an elastic conducting material is stretched within its elastic limit, which of the following best describes the relationship between the restoring force and the displacement from equilibrium according to $Hook’s$ Law?

When a mass attached to an ideal spring is at its maximum displacement from equilibrium, which of the following statements is true?

A block of mass $m$ is attached to a ceiling by a vertical spring with spring constant $k$. If the block is at rest and the spring is stretched by a distance $x$ from its natural length, which equation correctly relates the forces acting on the block at equilibrium?

When a metal spring is stretched horizontally, which of the following quantities increases?

According to Hooke's Law, what happens to the force required to stretch an ideal spring as the displacement from its equilibrium position increases?

A baby bouncer is attached to a vertical spring. When a force of $40N$ is applied, the spring stretches by $0.20m$. What is the spring constant $k$ of the spring?

In Hooke's law, expressed as $F=-kx$, what is the significance of the negative sign?

Which of the following best indicates that a spring obeys Hooke's Law?

Which of the following graphs best illustrates Hooke's Law for an ideal spring, where force is plotted on the vertical axis and displacement on the horizontal axis? $F=kx$

Why is there a negative sign in the equation for Hooke's law, $F=-kx$?

If you want a spring to stretch by $0.2 m$ when a force of $10 N$ is applied, what spring constant should you specify?

In Hooke's Law, which quantity is represented by the spring constant $k$?

The measure of a spring's resistance to being compressed or stretched is the: