Motion In A Straight Line

Question 1

Rest

Answer 1

A body is said to be at rest if it’s position does not change with time when seen by an observer

Question 2

To specify position of an object we need? (2)

Answer 2

Reference point or origin

Three mutually perpendicular coordinate axes

Question 3

Frame of reference for motion

Answer 3

Three coordinate axes along with a clock to measure time

Question 4

Three coordinate axes with a clock

Answer 4

Frame of reference

Question 5

Distance

Answer 5

Length of path travelled

Question 6

Displacement

Answer 6

Shortest distance between initial and final points