# Physics

## What Is Motion?

Motion is the action of changing location or position. The study of motion without regard to the forces or energies that may be involved is called kinematics. It is the simplest branch of mechanics. The branch of mechanics that deals with both motion and forces together is called dynamics and the study of forces in the absence of changes in motion or energy is called statics.

## Velocity

This is a GoAnimate that to explain what velocity is. http://goanimate.com/videos/0aRJa0Q_M_Q0?utm_source=linkshare

Sorry if you cant understand the url they are saying. If you cant, here it is again.

## Acceleration

The link below will take you to a voki that explains acceleration. Not only does it talkl about average acceleration, but it also talks about instantaneous acceleration.

## TEKS

The TEKS that are applied for motion are as follows:

4A) generate and interpret graphs and charts describing different types of motion, including the use of real-time technology such as motion detectors or photogates;

4B) describe and analyze motion in one dimension using equations with the concepts of distance, displacement, speed, average velocity, instantaneous velocity, and acceleration;

4C) analyze and describe accelerated motion in two dimensions using equations, including projectile and circular examples;

4D) calculate the effect of forces on objects, including the law of inertia, the relationship between force and acceleration, and the nature of force pairs between objects;

4E) develop and interpret free-body force diagrams; and

4F) identify and describe motion relative to different frames of reference.

## Projectile Motion

Projectile motion is a form of motion where a particle, called a projectile is thrown obliquely near the earth's surface, it moves along a curved path under the action of gravity. The path followed by a projectile is called its trajectory.