Your SlideShare is downloading. ×
  • Like
12 2 Newtons 1st  2nd Laws Of Motion
Upcoming SlideShare
Loading in...5

Thanks for flagging this SlideShare!

Oops! An error has occurred.


Now you can save presentations on your phone or tablet

Available for both IPhone and Android

Text the download link to your phone

Standard text messaging rates apply

12 2 Newtons 1st 2nd Laws Of Motion



Published in Technology
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Be the first to comment
    Be the first to like this
No Downloads


Total Views
On SlideShare
From Embeds
Number of Embeds



Embeds 0

No embeds

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

    No notes for slide


  • 1. NEWTON’S 1 st & 2 nd Laws of Motion Ch 12-2
  • 2. Aristotle, Galileo, and Newton
    • Took about 2000 years to develop relationship between force and motion.
  • 3. Aristotle
    • Greek Philosopher. 384-322BC .
    • Scientific discovery made through observation and logical reasoning.
    • Error in theory delayed progress on motion theory 2000 yrs.
    • The Error: Force is required to keep an object moving at constant speed.
  • 4. Galileo
    • Theory: Gravity produces constant acceleration
    • Used experiments to draw conclusion
    • Major experiment:
    • Rolled balls down a ramp and predicted that objects remain in motion unless friction slows them
  • 5. Newton
    • First defined mass and force .
    • 1 st Law.
    • The state of motion of an object does not change so long as the net force on the object is zero.
    • English: An object at rest will remain at rest until another force act on it.
  • 6. Newton
    • Inertia=
    • Is the tendency of object to resist change in its motion.
    • Object at rest stays at rest
    • Object in motion stays in motion—same direction and speed
  • 7. 2 nd Law
    • Acceleration = Net force(F) / Mass (m)
    • a = F net / m or F net = m * a
    • Force = mass X Acceleration
    • Mass = is a measure of inertia an object has and depends on the amount of matter the object contains
  • 8. 2 nd Law
    • The ratio is specific in that a doubling of an objects mass will cut its acceleration in half.
  • 9. Weight and Mass
    • Weight(w) is the force of gravity(g) acting on an object.
    • Weight = mass X 9.8m/s 2 Or W=mg
    • Other forms:
    • m= W / g and g= W/ m
    • Mass is the measure of the inertia of an object
  • 10.