4ESO Física i Química : Article 90 : Uniform motion with constant velocity extra exercices.
- Here you have extra exercicies about MRU in case you wanna practice even more :
* EXTRA EXERCICES 1. (Let's do exercise n.15)
4ESO FiQ 2016-2017 ENGLISH (from article 47).
4ESO Física i Química : Article 89 : Motions equations without and with acceleration.
4ESO Física i Química , ARTICLE 88 : Describing Motion with Position vs. Time Graphs and describing Motion with Velocity vs. Time Graphs
- Uniform Motion with Constant Velocity in a straight line ( MRU or UMCV ) :
- Today were gonna pay attention to motion graphs ( lessons 3a and 3b and lesson 4 of this webpage ) :
4ESO Física i Química , ARTICLE 87 : Speed and velocity.
- Watch these videos about the difference between speed and velocity :
- Read the following page about speed and velocity difference :
- Finally you have here a video with an example about calculating speed and average velocity :
- Here you can practice with serveral exercices :
4ESO Física i Química , ARTICLE 86 : Reference system or frame of reference depicts the kind of movement.
Frame of reference: When you are standing on the ground, that is your frame of reference. Anything that you see, watch, or measure will be compared to the reference point of the ground. If I am standing in the back of a moving truck, the truck is now my frame of reference and everything will be measured compared to it.
- Read carefully this webpage and study how important frame reference system is :
- If you are really more interested about frame reference significance, it would be great that you watch the following video carefully at home and learn about Einstein relativity theory that are straightaway related to reference system issue :
4ESO Física i Química , ARTICLE 85 : Trajectory.
A trajectory or flight path is the path that a moving object follows through space as a function of time.[1] The object might be a projectile or a satellite. For example, it can be an orbitthe path of a planet, an asteroid, or a comet as it travels around a central mass. A trajectory can be described mathematically either by the geometry of the path or as the position of the object over time.
4ESO Física i Química , ARTICLE 84 : Line of action, vector.
Motion (physics)
From Wikipedia :
In physics, motion is a change in position of an object over time. Motion is typically described in terms of displacement, distance, velocity, acceleration, time and speed. Motion of a body is observed by attaching a frame of reference to an observer and measuring the change in position of the body relative to that frame.
If the position of a body is not changing with respect to a given frame of reference, the body is said to be at rest, motionless, immobile, stationary, or to have constant (time-invariant) position. An objects motion cannot change unless it is acted upon by a force, as described.
Trajectory
From Wikipedia :
A trajectory or flight path is the path that a moving object follows through space as a function of time.[1] The object might be a projectile or a satellite. For example, it can be an orbitthe path of a planet, an asteroid, or a comet as it travels around a central mass. A trajectory can be described mathematically either by the geometry of the path or as the position of the object over time.
4ESO Física i Química , ARTICLE 83 : Vector parts 2.
