PPT: Friction | Physics for JEE Main & Advanced PDF Download

 Page 1


What Is Friction?
?
When a body slide or tends to slide on a surface on 
which it is resting, a resisting force opposing the 
motion is produced at the contact surface. This 
resisting force is called friction or friction force.
Page 2


What Is Friction?
?
When a body slide or tends to slide on a surface on 
which it is resting, a resisting force opposing the 
motion is produced at the contact surface. This 
resisting force is called friction or friction force.
Limiting Friction
?
The maximum friction force that can be developed at 
the contact surface, when body is just on the point of 
moving Is called limiting force of friction .
Page 3


What Is Friction?
?
When a body slide or tends to slide on a surface on 
which it is resting, a resisting force opposing the 
motion is produced at the contact surface. This 
resisting force is called friction or friction force.
Limiting Friction
?
The maximum friction force that can be developed at 
the contact surface, when body is just on the point of 
moving Is called limiting force of friction .
Types Of Friction
?
Static Friction:-
?
Friction experienced by a body when it is at rest is called 
static friction.
?
Dynamic Friction:-
?
Friction experienced by a body when it is motion is called 
dynamic friction.
?
Sliding Friction:-
?
Friction experienced by a body when it slides over another 
body, is called sliding friction.
?
Rolling Friction:-
?
Friction experienced by a body when it rolls over another 
body is called rolling friction.
Page 4


What Is Friction?
?
When a body slide or tends to slide on a surface on 
which it is resting, a resisting force opposing the 
motion is produced at the contact surface. This 
resisting force is called friction or friction force.
Limiting Friction
?
The maximum friction force that can be developed at 
the contact surface, when body is just on the point of 
moving Is called limiting force of friction .
Types Of Friction
?
Static Friction:-
?
Friction experienced by a body when it is at rest is called 
static friction.
?
Dynamic Friction:-
?
Friction experienced by a body when it is motion is called 
dynamic friction.
?
Sliding Friction:-
?
Friction experienced by a body when it slides over another 
body, is called sliding friction.
?
Rolling Friction:-
?
Friction experienced by a body when it rolls over another 
body is called rolling friction.
Page 5


What Is Friction?
?
When a body slide or tends to slide on a surface on 
which it is resting, a resisting force opposing the 
motion is produced at the contact surface. This 
resisting force is called friction or friction force.
Limiting Friction
?
The maximum friction force that can be developed at 
the contact surface, when body is just on the point of 
moving Is called limiting force of friction .
Types Of Friction
?
Static Friction:-
?
Friction experienced by a body when it is at rest is called 
static friction.
?
Dynamic Friction:-
?
Friction experienced by a body when it is motion is called 
dynamic friction.
?
Sliding Friction:-
?
Friction experienced by a body when it slides over another 
body, is called sliding friction.
?
Rolling Friction:-
?
Friction experienced by a body when it rolls over another 
body is called rolling friction.
Angle of Friction
?
The angle between normal
reaction (A) and resultant 
force (R) is called angle of
friction.
?
It is also called limiting 
angle of friction.