Physics Lecture Notes - Forces and Newton's Laws

Flashcards covering the force of a spring, friction force, coefficients of friction, and Newton's Third Law based on the provided lecture notes.

Force of a Spring

The force a spring exerts increases as it is stretched or compressed more.

Spring Force Equation

F = k * x, where k is the spring constant and x is the distance stretched or compressed.

Spring Constant (k)

A property of a spring that is constant for that spring.

Units of Spring Constant

N/m or N/cm

Friction Force

The force exerted by a surface on an object, acting along the surface.

Direction of Friction Force

Opposite direction of an object's motion or potential motion.

Coefficient of Friction (μ)

A number indicating how sticky two surfaces are.

Friction Force Equation

Ff = μFN, where Ff is the friction force, μ is the coefficient of friction, and FN is the normal force.

Newton's Third Law

The force of object A on object B is equal to the force of object B on object A.

Third Law Force Pair

A pair of forces that obey Newton's Third Law.

Forces Acting on the Same Object

Two forces in a third law force pair.