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Issac Newton and His Laws of
Motion
BY: Mona Chiang
Powerpoint created by Chikila Moore
Introduction
• Why does the ball
always bounce back
after it hits the floor?
• Why can’t I jump so
high that I fly above the
hoop?
• Newton’s laws use math
to explain how
everything moves.
Who Was Newton?
• Newton’s father died 3
months before he was
born.
• His mom married a rich
preacher.
• He was sent away to his
grandparents and to
school.
• His father was a farmer
who could not read or
write.
• Issac’s teacher put him a
the bottom of his class
but he soon became a top
student.
Man of Many Sciences
• Newton made key
discoveries.
• Newton studied what
other scientist had
learned about this.
• This law explains that all
objects in the universe
have gravity.
• Newton was the first to
recognize that the force
holding an object to earth
is the same as the force
holding the moon.
• He used his knowledge of
optics to build a powerful
telescope.
First Law of Motion
• Our push is the force
that makes a ball move.
• A scientists named
Galieo Galilei conducted
many experiments to
test new ideas.
• He studied Galieo
Galilei’s work on
motion.
First Law In Action
• Something needs force to
move.
• Something has to keep
moving at the same
speed.
• Friction is a force that
occurs whenever two
objects rub against each
other .
• This soccer ball has
friction.
Other Forces
• The force of gravity
pulls the ball down.
• Newton’s first law
applies to more than
soccer.
• What force or forces
might cause those
change?
First Law and Space Travel
• Friction and gravity
affect just about every
object on earth.
• Outer space has no air
particles to cause
friction.
• Only a force such as the
firing of rocket engines.
Inertia
• Newton’s first law
shows that an object
will not change its
motion.
• An object resists any
change in motion.
Acceleration
• Acceleration is how fast
an object changes
speed or direction or
both.
• You can accelerate
when you turn the
corner because you
change direction.
Math Behind The Law
• The second law of
motion shows how
force , mass , and
acceleration are related
or connected
force=mass*acceleration.
Units of Force
• Every measurement
includes a number and
a unit. Units are called
newton’s named after
Issac.
Newton’s Third Law of Motion
• The third law of motion
means that forces
always act in pairs.
• When one object exerts
a force on another
object.
The
Third Law In Action
• You move toward the
desk. You pulled on the
desk and the desk
pulled on you in the
opposite direction.
Conclusion
• Today , engineers use
these laws to determine
how much force is
needed to boost a
rocket into space.
• His laws are to design
many things. Machines
could not have been
invented without
understanding the laws
of motion.
When year was Issac Newton born?
•
•
•
•
1)1964
2)1642
3)2020
4)1968
How did Issac’s father die?
• 1)you don’t know.
• 2)he died in a car
accident.
• 3)somebody shot him