The Centripetal Force Requirement
An object moving in a circle is experiencing an acceleration. Even if moving around the perimeter of the circle with a constant speed, there is still a change in velocity and subsequently…
Acceleration
An object moving in uniform circular motion is moving in a circle with a uniform or constant speed. The velocity vector is constant in magnitude but changing in direction. Because…
Circular Motion and Satellite Motion
Motion Characteristics for Circular Motion Speed and Velocity Any moving object can be described using the kinematic concepts discussed in previously The motion of a moving object can be explained…
Bar Chart Illustrations
One tool which can be utilized to express an understanding of the work-energy theorem is a bar chart. A work-energy bar chart represents the amount of energy possessed by an…
Application and Practice Questions
Lesson 2 has thus far focused on how to analyse motion situations using the work and energy relationship. The relationship could be summarized by the following statements: There is a…
Analysis of Situations in Which Mechanical Energy is conserved
It has previously been mentioned that there is a relationship between work and mechanical energy change. Whenever work is done upon an object by an external force (or nonconservative force), there will be a change…
Analysis of Situations Involving External Forces
The previous part discussed the relationship between work and energy change. Whenever work is done upon an object by an external force, there will be a change in the total mechanical energy of the object.…
Mechanical Energy as the Ability to Do Work
An object that possesses mechanical energy is able to do work. In fact, mechanical energy is often defined as the ability to do work. Any object that possesses mechanical energy…
Mechanical Energy
It was said previously that work is done upon an object whenever a force acts upon it to cause it to be displaced. Work involves a force acting upon an…
Kinetic Energy
Kinetic energy is the energy of motion. An object that has motion - whether it is vertical or horizontal motion - has kinetic energy. There are many forms of kinetic energy…
