Fourth year
Trajectory and displacement
I. Sevila
 T. & D. 
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What is the name of the place from which a movement is observed?

Observer
Point of observation
Reference system
Displacement

Mark the correct sentences

Trajectory and displacement have the same meaning
The trajectory that characterizes a movement is unique
Displacement coincides with the space covered when the trajectory is rectilinear
Whether a reference system is moving or at rest influences the trajectory plotted

If a movement on the earth, as observed from the most distant stars, is a straight line, then it will also be moving in a straight line from the point of view of a reference system on the earth.
True
False
An observer on the earth is a reference system at rest

True
False

Percentage of correct answers
What is absolutely necessary to describe a movement?
Trajectory and displacement
Reference system and moving body
Reference system and trajectory
Displacement

EVALUATION
Introduction to the study of movement
Reference system
Trajectory
Displacement
EVALUATION