PHY1301 Chapter 5 — Further application of Newton’s laws: Friction and Drag

Flashcards covering key terms and concepts from Chapter 5 related to friction, drag forces, and Hooke's Law.

Frictional Force

A force that opposes relative motion between surfaces in contact.

Kinetic Friction

The friction occurring between two surfaces in contact that are moving relative to each other.

Static Friction

The friction that occurs when two surfaces are in contact and there is no relative motion.

Coefficient of Kinetic Friction (μk)

A dimensionless constant that represents the ratio of the force of kinetic friction to the normal force.

Coefficient of Static Friction (μs)

A dimensionless constant that represents the ratio of the force of static friction to the normal force.

Normal Force

The perpendicular force exerted by a surface against an object resting on it.

Hooke’s Law

Describes the force exerted by an ideal spring when compressed or stretched from its equilibrium position: F = -kΔL.

Drag Force

A force that opposes the motion of an object as it moves through a fluid.

Terminal Speed

The maximum constant speed reached by an object when the drag force equals the applied force.

Stokes’ Law

A law that describes the drag force on a spherical object moving through a viscous fluid at low speeds.