This PowerPoint presentation summarizes Newton's contributions and laws of motion. Newton developed calculus, proved that white light is composed of rainbow colors, invented the reflecting telescope, and formulated the laws of motion and universal law of gravitation. Newton's First Law, also called the law of inertia, states that an object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force. The presentation explains balanced and unbalanced forces and how inertia increases with increasing mass of an object.

2. POWER POINT
PRESENTATION
Presented by
SABAREESH.P.S
Physical Science
Reg. No: 13367008
JBMCTE

4. Newton’s Contributions
• Calculus
• Light is composed of
rainbow colors
• Reflecting Telescope
• Laws of Motion
• Theory of Gravitation

5. Newton’s First Law
(law of inertia)
An object at rest tends to stay at rest and
an object in motion tends to stay in
motion unless acted upon by an
unbalanced force.

6. Balanced Force
Equal forces in opposite
directions produce no motion

7. Unbalanced Forces
Unequal opposing forces
produce an unbalanced force
causing motion

8. If objects in motion tend to stay in motion,
why don’t moving objects keep moving
forever?
Things don’t keep moving forever because
there’s almost always an unbalanced force
acting upon them.
A book sliding across a table slows
down and stops because of the force
of friction.
If you throw a ball upwards it will
eventually slow down and fall
because of the force of gravity.

9. Inertia

10. Newton’s First Law
(law of inertia)
• MASS is the measure of the
amount of matter in an object.
• It is measured in Kilograms

11. Newton’s First Law
(law of inertia)
• INERTIA is a property of an
object that describes how
______________________ much it will resist change to
the
motion of the object
• more _____ means more ____
mass inertia

12. 1st Law
• Unless acted
upon by an
unbalanced
force, this golf
ball would sit
on the tee
forever.

13. What is this unbalanced ffoorrccee tthhaatt aaccttss oonn aann
oobbjjeecctt iinn mmoottiioonn??
• : initial friction when moving an object

14. 1st Law
• Once airborne,
unless acted
on by an
unbalanced
force (gravity
and air – fluid
friction) it
would never
stop!