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1st law: Law inertia

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December 25th 1642, in Woolsthorpe, Lincolnshire, England. Isaac wasn't raised ... http://id.mind.net/~zona/mstm/physics/mechanics/forces/newton/newton.html ... – PowerPoint PPT presentation

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Title: 1st law: Law inertia


1
1st law Law inertia
  • 3 laws that explains motion

2nd law Fma
3rd law Forces come in pairs
Isaac Newton
Pic www.crystalinks.com/newton.html
2
Isaac Newton
  • December 25th 1642, in Woolsthorpe, Lincolnshire,
    England.
  • Isaac wasnt raised by his parents
  • Considered one of the most important scientists
    of all time
  • Philosophiae Naturalis Principia Mathematica

3
History of the Three Laws
  • 384-322 B.C. Greek philosopher Aristotle
  • Galileo (1564-1642 late 16th century early
    17th century)
  • Newton (mid-17th century)

4
First law
  • Law of Inertia
  • Inertia no force
  • Net total/ net force may change the velocity of
    the object.
  • velocity 0m/s

1.Imagine a place in the cosmos far from all
gravitational and frictional influences. Suppose
that you visit that place (just suppose) and
throw a rock. The rock will
5
2nd law
  • F ma
  • Force ?object ?velocity and direction
  • Mass and acceleration is connected

Consider this It was said that the 2nd law of
Motion was the most powerful of Newtons three
laws, because it also contributes to calculations
of dynamics how do velocities change when forces
are applied.
2.It is easier to stop a car than stopping a
plane. Why? Explain it with what you know about
the 2nd law of Motion.
http//www.my-blue-elephant.com/
http//www.georgeledger.co.uk/feather20still20li
fe.html
6
3rd law
3. While driving down the road, a firefly strikes
the windshield of a bus and makes a quite obvious
mess in front of the face of the driver. This is
a clear case of Newton's third law of motion. The
firefly hit the bus and the bus hits the firefly.
Which of the two forces is greater the force on
the firefly or the force on the bus?
  • Forces come in pairs
  • The harder you push on something, the harder it
    push back on you

7
Activity
  • Turn your chair chairs in Mr.Olsons class
    (push off the table to apply a force)
  • Think about this next time you slam a table,
    remember that you are not the only one that is
    hurt
  • Place a coin on a flat Not slanted table.
  • Which Laws of Motion does each of these examples
    show?
  • Use what you know about Laws of Motion to explain
    how these examples works.
  • And answer all the questions asked on the laws
    slides
  • Mail me answers skybluegal_qt_angela_at_msn.com

8
Bibliography! And yes it is the end of my
presentation gtlt
  • Newtons Three Laws of Motion Astronomy 161
    The Solar System. Dept. Physics and Astronomy
    University of Tennessee. 20 Sep. 2007
    lthttp//csep10.phys.utk.edu/astr161/lect/history/n
    ewton3laws.htmlgt
  • Zoble, Edward. Isaac Newtons Laws of Motion. 27
    september 2007. lthttp//id.mind.net/zona/mstm/phy
    sics/mechanics/forces/newton/newton.htmlgt
  • K.Lee and Brenda Wilmoth Lerner. Acceleration.
    3rd Detroit Gale, 2005. Student Resource
    Center-Gold. Thomson Gale. Churchill Library,
    Vancouver, BC. 25 September 2007
    lthttp//find.galegroup.com/gt
  • K.Lee and Brenda Wilmoth Lerner.Laws of Motion.
    3rd Detroit Gale, 2004. Student Resource Center
    Gold. Thomson Gale. Churchill Library,
    Vancouver, BC. 22 September 2007
    lthttp//find.galegroups.com/gt
  • Newton, Isaac (1642 1727). Online Detroit UXL,
    2003. Student Resource Center Gold. Thomson
    Gale. Churchill Library, Bancouver, BC. 21
    September 2007 lthttp//find.galegroup.com/gt
  • Celestial mechanics. 2nd Detroit UXL, 2002.
    Student Resource Center Gold. Tomson Gale.
    Churchill Library, Vancouver, BC. 24 september
    2007 lthttp//find.galegroup.com/gt
  • Laws of motion. 2nd Detroit UXL, 2002. Student
    Resource Center Gold. Tomson Gale. Churchill
    library, Vancouver, BC. 24 September 2007
    lthttp//fin.galegroup.com/gt
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