In physics, a force is any interaction that, when unopposed, will change the motion of an object. A force can cause an object with mass to change its velocity, i.e., to accelerate. Force can also be described intuitively as a push or a pull. A force has both magnitude and direction, making it a vector quantity. Watch other topics in http://bit.ly/2PIOIQM

1. BIOMECHANICS
Prepared by Atehhna Pandian
FORCE

2. Today's
Presentation
DISCUSSION POINTS
What is Force?
Cause
Symbol
Unit
Types
Fundamental Force
Non-Fundamental Force
1.
2.
3.
4.
5.
6.
7.
AtheenaPandian

3. What is
Force?
In physics, a force
is any interaction
that, when
unopposed, will
change the motion
of an object.

4. A force has both magnitude and
direction, making it a vector
quantity.
Force

5. A force can cause an
object with mass to change
its velocity, i.e., to
accelerate. Force can also
be described intuitively as
a push or a pull.
FORCECANCAUSE

6. Symbol of
Force
A force has both
magnitude and
direction, making it a
vector quantity and it is
represented by
the symbol F.

7. Unit of Force
Newton
A newton (N) is the
international unit of
measure for force. One
newton is equal to 1
kilogram meter per
second squared.

8. FUNAMENTAL FORCES OF
NATURE
GRAVITATIONAL FORCE
WEAK NUCLEAR FORCE
ELECTROMAGNETIC FORCE
STRONG NUCLEAR FORCE.
1 .
2 .
3 .
4 .

9. NON-FUNAMENTAL FORCES
OF NATURE
NORMAL FORCE
FRICTION
TENSION
ELASTIC FORCE
CONTINUUM MECHANICS
FICTITIOUS FORCES
1 .
2 .
3 .
4 .
5 .
6 .

10. Gravitational
Force
The gravitational force is
a force that attracts any two
objects with mass
In fact, every object, including
you, is pulling on every other
object in the entire universe! This
is called Newton's Universal Law
of Gravitation.

11. Weak
Nuclear
Force
weak force or weak nuclear
force, is the mechanism
of interaction between
subatomic particles that is
responsible for the radioactive
decay of atoms.

12. Strong
Nuclear
Force
In nuclear physics and
particle physics, the
strong interaction is the
mechanism responsible
for the strong nuclear
force,

13. Electromagnetic
Force
The magnetic force acts
between moving
charged particles. This
means that every
charged particle gives
off an electric field,
whether or not it's
moving.

14. Measurement of
Force
Direct comparison and
indirect comparison
1.
2.

15. In a direct comparison method, an
unknown force is directly compared with
a gravitational force acting on a known
mass. A simple analytical balance is an
example of this method.
Directcomparison

16. Lever-balance methods.
Force-balance method.
Hydraulic pressure measurement.
Acceleration measurement.
Elastic elements.
An indirect comparison method involves
the use of calibrated masses
or transducers. A summary of indirect
comparison methods is given below:
1.
2.
3.
4.
5.
InDirectcomparison

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