School project of Physics (Motion)

1. ALISHA
KHAN

2.  A body is said to be in motion if its
position with respect to a fixed point
or an object in its surroundings keep
changing with time.

4.  Translatory motion:
• If an object moves in such a way that every part of the object moves through the
same distance in the same time interval ,then the object is said to be in
translatory motion .
• There are two types of translatory motion
Rectilinear motion : An object moving along a straight line path is said to have
rectilinear motion
Curvilinear motion : An object moving on a curved path is said to have curvilinear
motion
o Circular motion is a special case of curvilinear motion where the object moves
around a fixed point in a circular [closed] path

5.  Rotatory motion :
• When an object rotates or spins about an axis [called the axis of rotation],it is said
to be in rotatory motion
 Oscillatory motion :
• When an object as a whole moves to-and-fro about its mean position, it is said to be
in oscillatory motion
Vibratory motion: Vibratory motion is a special case of oscillatory motion
If the whole body does not move to-and-fro as a single unit , but some of its part
oscillate about their mean positions, it is known as vibratory motion

6.  Repetitive motion:
• When an object moves such that it repeats its motion after a certain interval of
time, it is said to be in repetitive motion
• There are two types of repetitive motion
Periodic motion: The motion that repeats itself after regular intervals of time is
called periodic motion
Non-periodic motion: The motion that repeats itself but not after regular intervals
of time is called non-periodic motion
 Random motion:
• An object moving with no specific path and frequently changing its direction
[and/or speed] is said to be in a random motion
 Combination or multiple motion:
• When an object possesses two or more types of motions at the same time, it is said
to have a combination motion or a multiple motion

7.  Uniform motion:
• An object is said to have uniform motion if it covers equal distances in equal
intervals of time along a straight line
 Non-Uniform motion:
• An object is said to have non-uniform motion if it covers unequal distances in equal interval of
time
Uniform Motion