Suppose that you were driving a car with the steering wheel turned in such a manner that your car followed the path of a perfect circle with a constant radius. And suppose that as you drove, your speedometer maintained a constant reading of 10 mi/hr. In such a situation as this, the motion of your car could be described as experiencing uniform circular motion. Uniform circular motion is the motion...

When a force acts upon an object to cause a displacement of the object, it is said that work was done upon the object. There are three key ingredients to work force, displacement, and cause. In order for a force to qualify as having done work on an object, there must be a displacement and the force must cause the displacement. Read the following five statements to understand the concept of work. S...

Momentum refers to the quanity of motion that an object has. Momentum can be defined as "mass in motion." All objects have mass; so if an object is moving, than it has momentum-it has its mass in motion. The amount of momentum which an object has is dependent upon two variables: how much stuff is moving and how fast the stuff is moving. Momentum depends upon the variables mass and velocity. In te...

The focus here is Newton's first law of motion - sometimes referred to as the law of inertia. Newton's first law of motion is often stated as : An object at rest tends to stay at rest and an object in motion tends to stay in motion with the same speed and in the same direction-unless acted upon by an unbalanced force. Everyday Applications of Newton's First Law There are many applications of N...

Physics concerns intself with a variety of broad topics. One such topic is mechanics - the study of the motion of objects Kinematics is the science of describing the motion of objects using words, diagrams, numbers, graphs, and equations. Kinematics is a branch of mechanics. The goal of any study of kinematics is to develop sophisticated mental models which serve to describe (and ultimately, expl...