This document is a student's physics project on Newton's Laws of Motion. It introduces Newton's three laws: 1) An object at rest stays at rest and an object in motion stays in motion unless acted on by an unbalanced force. 2) The net force on an object equals its mass times its acceleration. 3) For every action there is an equal and opposite reaction. Examples are given for each law, such as pumpkins at rest and a moving football for the first law, pedaling a bicycle for the second law, and a fish propelling through water for the third law. The project emphasizes the importance of wearing seatbelts due to inertia.

1. NAME:PRIYUNGSHU MITRA
CLASS:IX
ROLL NO:26
PHYSICS
PROJECT

2. NEWTON’S
LAWS
OF
MOTION

3. FIRST LAW OF
MOTION
An object at rest will
stay at rest, and an
object in motion will
stay in motion at
constant velocity,
unless acted upon by
an unbalanced force.
Inertia is the
tendency of an object
to resist changes in
its velocity: whether
in motion or
motionless.
(LAW OF INERTIA)
These pumpkins will not
move unless acted on by
an unbalanced force.

4. EXAMPLES OF FIRST LAW
OF MOTION
Once this football is
airborne, unless
acted on by an
unbalanced force
(gravity and air –
fluid friction), it
would never stop!

5. APPLICATION OF LAW OF
MOTION WITH US
DON’T LET THIS BE YOU. WEAR SEAT BELTS!!.
BECAUSE OF INERTIA, OBJECTS (INCLUDING YOU)
RESIST CHANGES IN THEIR MOTION. WHEN THE
CAR GOING 80 KM/HOUR(assumption) IS STOPPED BY THE
BRICK WALL,AS WELL AS YOUR BODY KEEPS MOVING AT
80 KM/HOUR

6. NEWTON’S SECOND LAW OF
MOTION
THE NET FORCE OF AN
OBJECT IS
EQUAL TO THE PRODUCT OF
ITS MASS AND
ACCELERATION, OR F=MA.
They describe the
relationship between a
body and the forces
acting upon it, and its
motion in response to
those forces

7. EXAMPLES OF NEWTON’S
SECOND LAW OF MOTION
Your bicycle is
the mass. Your
leg muscles
pushing pushing
on the pedals
of your bicycle
is the force.

8. NEWTON’S THIRD LAW OF
MOTIONFor every action, there is an
equal and opposite reaction.
According to Newton,
whenever objects A and B
interact with each other, they
exert forces upon each other.
When you sit in your chair,
your body exerts a downward
force on the chair and the
chair exerts an upward force
on your body.

9. NEWTON’S THIRD LAW OF
MOTION IN NATURE
Consider the
propulsion of
a fish through the
water.
A fish uses its fins
to push
water backwards. In
turn, the water reacts
by
pushing the fish
forwards,
propelling the fish
through the water.

10. THANK YOU