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Submitted by:Lady Heart O. Bana-ay

Submitted to:Sir, Artemio Lutang Jr.
Contact and Non-contact Forces
What is CONTACT FORCE?
• Contact force is a force that is applied by objects in contact with each
other. The contact force acts on a point of direct contact between the
two objects.
 What is NON-CONTACT FORCE?
• A non-contact force is a force which acts on an object without coming
physically in contact with it. The most familiar non-contact force is
gravity, which confers weight. In contrast a contact force is a force
which acts on an object coming physically in contact
What is FORCE?
• Force is an act of pushing or pulling
done by an object to another object.
•Force can make an object move
starting from rest position
•Force can make an object stop
•Force can change the direction of a
moving object.
 DIFFERENT TYPES OF
FORCES
•CONTACT FORCE •NON –CONTACT FORCE
•Appilied Force • Gravitational Force
•Normal Force
• Electric Force
•Frictional Force
•Air Resistance Force • Magnetic Force
•Tensional Force
•Spring Force
APPLIED FORCE
• An applied force is a contact force that is applied to an object
by external means. As a result of applied force, the object
either moves or deforms.
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.
NORMAL FORCE EXAMPLE
FRICTIONAL FORCE
• Frictional force is the force generated by two surfaces
that contact and slide against each other.
AIR RESISTANCE FORCE
• Air resistance is defined as the force that acts in the
opposite direction to an object moving through the air
.
TENSIONAL FORCE
• Tension is defined as the force transmitted through a
rope, string or wire when pulled by forces acting from
opposite sides.
SPRING FORCE
• What is Spring Force?
Spring Force is when a metal spring is stretched or
compressed, it is displaced from its equilibrium position.

The children are

jumping on the
trampoline.
GRAVITATIONAL FORCE
• The gravitational force is a force that attracts any
two objects with mass.
ELECTRICAL FORCE
•Electric force is the attractive force between the electrons
and the nucleus.
Plugging a light
into a battery, one
is positive and the
other is negative,
the bulb can
produce power or
light.
 MAGNETIC
•FORCE
What is the magnetic force? The magnetic force is a consequence of
the electromagnetic force, one of the four fundamental forces of
nature, and is caused by the motion of charges.

Magnets Have Two Poles.

Every magnet has a north pole
and a south pole.magnets only
attracts in opposite directions.
Why are FORCES so
important?
•Forces are important because, as we
learned in another lesson, they are
responsible for changes in motion.
Thank you!