CLASS 9th
MOTION
Best Handwritten Notes
made with
Shobhit Nirwan
, -
·
( -
- -
"
I
/ ~ EaI
L
X
↳x
I Birds Flying 3 C Blades of fan7 E Vehicles Moving7
We observe these kinds of phenomena in our everyday life? Isn’t it ?
All of these are examples of types of motions.
-..................
#Kitaabi Definition: If a body changes its position with respect to time and
!--- ----
I
-- surroundings, it is said to be in motion.
-
---
- -
- -
Some Important Terms:
- We describe the location of an object by specifying a reference point.
Relative: Beta tumhara school kitne dur hai?
Baccha: Mere ghar se 2km dur.
{ To yaha par bacche ne “Ghar” ko as a reference point liya. }
Therefore, to describe the position of an object we need to specify a
reference point called the origin.
-
I Scalar and Vector Quantities
Imagine you're playing a game of hide-and-seek with your friends.
You want to tell your friends how far you are from the hiding spot
and in which direction.
Scalar Quantity: A scalar quantity is something that tells you only
the amount or size or magnitude of something, without any
information about the direction.
For example, imagine you tell your friends, "I am 10 steps away from
the hiding spot." Here, you're only giving them the distance, which is
the scalar quantity. It doesn't matter if you went left or right or
any other direction, just how far you are.
MOTION
Best Handwritten Notes
made with
Shobhit Nirwan
, -
·
( -
- -
"
I
/ ~ EaI
L
X
↳x
I Birds Flying 3 C Blades of fan7 E Vehicles Moving7
We observe these kinds of phenomena in our everyday life? Isn’t it ?
All of these are examples of types of motions.
-..................
#Kitaabi Definition: If a body changes its position with respect to time and
!--- ----
I
-- surroundings, it is said to be in motion.
-
---
- -
- -
Some Important Terms:
- We describe the location of an object by specifying a reference point.
Relative: Beta tumhara school kitne dur hai?
Baccha: Mere ghar se 2km dur.
{ To yaha par bacche ne “Ghar” ko as a reference point liya. }
Therefore, to describe the position of an object we need to specify a
reference point called the origin.
-
I Scalar and Vector Quantities
Imagine you're playing a game of hide-and-seek with your friends.
You want to tell your friends how far you are from the hiding spot
and in which direction.
Scalar Quantity: A scalar quantity is something that tells you only
the amount or size or magnitude of something, without any
information about the direction.
For example, imagine you tell your friends, "I am 10 steps away from
the hiding spot." Here, you're only giving them the distance, which is
the scalar quantity. It doesn't matter if you went left or right or
any other direction, just how far you are.
