- Study of motion in physics
- Dynamic
- Kinematics
- Types of movement
- Rectilineal movement
- Simple Harmonic Motion
- Circular movement
- Parabolic or Curvilinear Movement
- Main elements of the movement
- The mobile
- The trajectory
- Distance
- Speed
- Time
- References
In physics, the study of motion can be classified into two branches: dynamics and kinematics. When studying the causes of movement itself, we are in the presence of dynamics, while the omission of this information will guide us towards a kinematic approach to movement.
It is necessary to know that movement is any variation of the position of an object or particle. Knowing the elements of motion can increase understanding when studying this physical phenomenon, which was of great interest to scientist Isaac Newton.
When an object varies its position based on a fixed or reference system, we are facing a movement, which can be basically classified into several types.
Study of motion in physics
Dynamic
The dynamics takes into account the external elements that could have generated a movement or the variation of the position as a function of time.
When establishing the presence of a force as a generator of movement, the dynamics takes into account three main elements for the study of the phenomenon of movement: force, mass and acceleration.
Kinematics
The change in position of an object with respect to a fixed point can be analyzed taking into account three elements such as: the mobile, the space and the time used to travel this distance.
The fundamental principle of kinematics is to study the behavior of the moving body, without taking into account the generating forces.
It usually takes into account the displacements developed and the speed reached.
Types of movement
Rectilineal movement
Study movements that describe straight lines. It is classified into MRU (Uniform Rectilinear Motion) when the speed is constant and MRUV (Uniformly Varied Rectilinear Motion) when the speed is variable.
Simple Harmonic Motion
Describe pendular and reciprocating movements, like those of a spring.
Circular movement
Study the motion whose path describes a circumference, such as clockwise or the planetary orbit.
It is classified in MCU (Uniform Circular Motion) when the speed is constant. MCUV (Uniformly Varied Circular Motion) when speed is variable.
Parabolic or Curvilinear Movement
Describe a parabola in its path, like a projectile being launched.
Main elements of the movement
The mobile
It is defined as the object or particle of study. The observations and results are based on the behavior of this mobile.
The trajectory
Each point described by the mobile during its movement is defined as the trajectory.
Depending on the type of trajectory (straight, circular, curvilinear or pendular), the type of movement studied can be classified.
Distance
It is the space between the starting point and the arrival point. Once the mobile fulfills its trajectory and displacement, the distance can be determined by checking these two points.
Speed
It is defined as the amount of distance traveled by the mobile in the unit of time. It is usually expressed in kilometers / hours or miles / hours.
Time
It is the interval of duration of the movement phenomenon. Its unit of measurement is usually the second, minute, hour, day, among other units of longer duration.
References
- "Motion (physics) - Wikipedia, the free encyclopedia." es.wikipedia.org. It was consulted on September 9, 2017.
- "Movement - Online Teacher." profesorenlinea.cl. It was consulted on September 9, 2017.
- «The Movement in Physics - Fisicalab.» fisicalab.com. It was consulted on September 9, 2017.
- "Dynamics (mechanics) - Wikipedia." en.wikipedia.org. It was consulted on September 9, 2017.
- "Dynamics - physics - Britannica.com." britannica.com. It was consulted on September 9, 2017.