Look at the two examples below and think about how the motion of skier one and skier two differs.
The left skier was going straight ahead. He was leaving a straight trail.
The right skier was slowly curving down the hill. He was leaving a curved trail.
The apparent trace used to describe the change in position of a body is called the track of motion.
Motion can be described in terms of a track.
Depending on the track of motion, we can divide motion into linear and curvilinear motion.
In linear motion, the track of motion is a straight line.
In curvilinear motion, the path of motion is a curved line.
TASK 1
Arrange the examples of photographs showing a linear motion on the left-hand side and the examples showing a curvilinear line of motion on the right-hand side.
TASK 2
In the picture below, 4 tracks of pupils motion on the playground are labelled. Mark which statements is correct.
a)The green and red tracks indicate curvilinear motion.
