The document defines different types of forces: - Applied forces act on objects due to direct contact from another object or person. Gravity pulls objects with mass towards each other. Normal forces prevent objects from passing through surfaces they contact. Friction resists the motion of surfaces in contact and sliding against each other. Spring forces restore compressed or stretched springs back to equilibrium. Drag forces resist the motion of objects moving through fluids. Magnetic, electric, and inertia forces also act on charged or moving objects. Newton's First Law of Motion describes inertia, where objects at rest stay at rest and objects in motion stay in motion with constant velocity unless acted on by unbalanced forces.

1. TYPES OF FORCES

2. FORCE
• A force is any influence that causes an
object to undergo a change in speed, a
change in direction, or a change in
shape.
• also be described by intuitive concepts
such as push or pull.

3. Applied Force
•An applied force is a force that is
applied to an object by a person or
another object.
•If a person is pushing a desk across the
room, then there is an applied force
acting upon the object.

4. Gravity Force
•pulls objects with mass toward
each other
•without gravity what do you think
will happened?

5. Normal Force
• The normal force is the force that surfaces exert to
prevent solid objects from passing through each other.
Normal force is a contact force. If two surfaces are not
in contact, they can't exert a normal force on each
other.
• For example, when a book is placed on a table, the
normal force keeps the book from falling through the
table.

6. FRICTION FORCE
What is friction?
• Friction is the resistance that one surface or
object encounters when moving over another.
• it is the force generated by two surfaces that
contact and slide against each other.

7. Spring Force
• Spring force is the force required or exerted to
compress or stretch a spring upon any object that is
attached to it.
• When an object applies a force to a spring, then the
spring applies an equal and opposite force to the
object. It always acts so as to restore mass back
toward its equilibrium position.
• Example rubber band

8. Drag Force
• Drag is a mechanical force. It is generated by the
interaction and contact of a solid body with a fluid (liquid
or gas). It is not generated by a force field, in the sense
of a gravitational field or an electromagnetic field, where
one object can affect another object without being in
physical contact
• Example of drag force are resistance on moving
vehicles, floating objects like boats and resistance
during a storm or heavy wind like airplane.

9. Magnetic Force
• magnetic force, attraction or
repulsion that arises between
electrically charged particles
because of their motion. It is the
basic force responsible for such
effects as the action of electric
motors and the attraction of
magnets for iron.

10. Electrical Force
• The repulsive or attractive
interaction between any two
charged bodies is called as
electric force. Similar to any
force, its impact and effects on
the given body are described by
Newton's laws of motion.

11. FRICTION
FORCE
GRAVITY
FORCE
APPLIED
FORCE
SPRING
FORCE

12. DRAG
FORCE
NORMAL
FORCE
MAGNETIC
FORCE
ELECTRIC
FORCE

13. Newton’s Laws of
Motion

14. Sir Isaac Newton (1643-1727)
an English scientist and mathematician
famous for his discovery of the law of
gravity also discovered the
three laws of motion.
Today these laws are known as
Newton’s Laws of Motion and
describe the motion of all objects on
the scale we experience in our
everyday lives.

15. Newton’s First Law of Motion:
Law of Inertia
• Newton's first law states that
an object at rest will stay at rest
or an object in motion will stay
in motion and travel in straight
line, as long as no external net
force acts on it. The object will
change its state of motion only
if there is unbalanced or net
force acting upon it.

16. types of inertia.

17. inertia at rest
• an object stays where it is placed,
and it will stay there until you or
something else moves it. The
property of a body to oppose any
change in its state of rest is known
as inertia of rest.
• For example, if you roll a ball, it will
continue rolling unless friction or
something else stops it by force.

18. • Another example is you
can also think about the
way that your body keeps
moving forward when you
hit the brake on your
bike.

19. Inertia of motion
• it is the tendency of a body to resist any
change in its condition of uniform
motion.
• For example, when you are riding a bus
when the bus stops suddenly, what do
you think will happened?

20. • When the driver of a bus
brakes suddenly, the lower
part of the body comes to
rest as the bus comes to
rest, but the upper part of
the body continues to
move forward due to
inertia of motion.

21. Inertia of direction
• an object will stay moving in
the same direction unless a
force act on it. The property
of a body to oppose any
change in its direction of
motion.
• For example, when a moving
bus takes a sharp turn at a
circular path, we fall on what