Describing Motion
Describing Motion: Overview
This Topic covers sub-topics such as Distance, Position, Motion, Displacement, SI Unit of Distance, Uniform Motion, Non-uniform Motion, Rest and Motion, Motion along a Straight Line, Reference Point and, Reference Frame
Important Questions on Describing Motion
Assertion: Displacement of a body may be zero even when distance travelled by it is not zero.
Reason: The displacement is the shortest distance between initial and final position.
Coordinate system is a type of frame of reference.
To measure position, displacement, acceleration of an object we do not need frame of reference.
Which of the following can be calculated if a frame of reference is given?
A frame of reference is a set of coordinates that can be used to determine positions and velocities of objects in that frame.
Which of the following are stationary relative to earth?
Suppose in a garden children are playing around a tree. To analyse the motion of the children which one of the following will be suitable for point of reference?
Which of the following can be stationary point of reference?
Why reference point is important to describe an object in motion?
The motion of needle of a watch is an example of _____ motion.
Can displacement be negative? Compare displacement with simple linear motion.
Uniform circular motion is an accelerated motion.
An object is said to be in motion if it changes its position relative to a _____.
(Choose from: Temperature/reference point)
What do you mean by motion? Explain different types of motion.
A body travels a distance of towards East, then towards North and finally towards East. What is the resultant displacement?
A body travels a distance of towards East, then towards North and finally towards East. What is the total distance travelled?
If on a round trip you travel and then arrive back home what is your final displacement?
To describe the position of an object, reference point have to be specified.
The signal from ground station travels to spaceship and back in . Find the distance between spaceship and ground station if speed of signal is .
