Types of Forces
A force is a push or pull acting upon an object as a result of its interaction with another object. There are a variety of types of forces. Previously in this…
Force is a Vector Quantity
A force is a vector quantity. As learned in an earlier unit, a vector quantity is a quantity that has both magnitude and direction. To fully describe the force acting upon an…
Force and Its Representation
The Meaning of Force A force is a push or pull upon an object resulting from the object's interaction with another object. Whenever there is an interaction between two objects, there is a force upon each…
Newton’s Laws
Newton's First Law of Motion In a previous chapter of study, the variety of ways by which motion can be described (words, graphs, diagrams, numbers, etc.) was discussed. In this unit (Newton's Laws…
Kinematic Equations and Graphs
Kinematic Equations and Graphs Lesson 4 of this unit at The Physics Classroom focused on the use of velocity-time graphs to describe the motion of objects. In that Lesson, it…
Kinematic Equations and Free Fall
As mentioned in Lesson 5, a free-falling object is an object that is falling under the sole influence of gravity. That is to say that any object that is moving and…
Kinematic Equations and Problem-Solving
The four kinematic equations that describe the mathematical relationship between the parameters that describe an object's motion were introduced in the previous part of Lesson 6. The four kinematic equations are:…
The BIG 4
The kinematic equations are a set of four equations that can be utilized to predict unknown information about an object's motion if other information is known. The equations can be…
Motion with Equations
The Kinematic Equations The goal of this first unit of The Physics Classroom has been to investigate the variety of means by which the motion of objects can be described.…
The Big Misconception
Earlier in this lesson, it was stated that the acceleration of a free-falling object (on earth) is 9.8 m/s/s. This value (known as the acceleration of gravity) is the same…
