G8 - Chapter 1: Motion - Part 1

An object is said to be in motion with respect to a given reference if it’s ___ varies relative to the reference.

• size

• position

• distance

Motion is ____, it may vary between two persons point of view.

• relative

• rectilinear

Motion is relative, we need to choose a ___ in order to describe the motion.

• trajectory

• curve

• reference

When the reference is not specified, we consider the ____as a reference

• earth

• reference

• man

The trajectory of a moving object is the set of _____ occupied by this point during the ____ of that object.

• positions, motion

• distances, motion

In order to specify the position of an object, we need to specify a ____ point

• reference

• white

• distance

An object is said to be at rest with respect to a given reference if it’s position _________ relative to the reference.

• changes

• does not change

• distance

Draw your full name.