Physics 101: Lecture 1, Pg 17 Contact Forces: Friction Magnitude of frictional force (parallel to surfaces) is proportional to the normal force. f kinetic = m k N m k coefficient of Kinetic friction f static ≤ m s N m s coefficient of Static friction Be Careful! Static friction ≤, …

In an interaction between two objects, the forces that each exerts on the other are equal in magnitude and opposite in direction. G = 6.7x10-11 m3 / (kg s2) Earth: Mass = 6x1024 kg, radius = 6.4 x106 m. Calculate the gravitational force on a 3 …

Physics 101: Lecture 1, Pg 16 Newton’s Laws of Motion 1. NEWTON’S FIRST LAW: If there is zero net force on an object, then its speed and direction will not change. Inertia 2. NEWTON’S SECOND LAW If a nonzero net force is applied to an object its motion will change F Net = ma 3. NEWTON’S THIRD LAW The forces that two interacting objects

This first course serves as an introduction to the physics of force and motion. Upon completion, learners will understand how mathematical laws and conservation principles describe the motions and interactions of objects around us.

Let's summarize the major characteristics of the electromagnetic force: 2 Strong: It is the 2nd strongest of the fundamental forces | only the appropriately named strong force (which binds quarks and nuclei together) beats it (and only at very small distances).

Molecular forces have never been satisfactorily explained on a basis of classical physics; it takes quantum mechanics to understand them fully. Empirically, however, the force between atoms is illustrated schematically in Fig. 12–2 , where the force $F$ between two atoms is plotted as a function of the distance $r$ between them.

Understanding the nature of a force as an interaction between objects is critical to success in a Newton's Laws unit. The Physics Classroom clarifies this concept through several examples. The distinction between contact forces and field forces is also discussed.

The normal force is a contact interaction between any objects that are touching each other (e.g. a book resting on a table) and points perpendicular to the two surfaces in contact. A scale reads the apparent weight of an object, which is the normal force between the object and scale.

Explore the fundamental concepts of forces and motion in this 36-minute physics lecture from Dot Physics. Dive into the contrasting views of Newton and Aristotle, unpack Newton's second law, and understand inertial reference frames. Examine special forces, master the art of creating free body diagrams, and delve into Newton's third law.

Magnitude of frictional force (parallel to surfaces) is proportional to the normal force. Be Careful!