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Title: the dynamics of newton's laws


1
The dynamics of Newton's laws
  • By Emily Richards

2
Magnetic force
  • Magnetic forces are produced by moving electric
    charges.

3
Electric force
  • Electric force is very similar to magnetic force
    and gravitational force.

4
Gravitational Force
  • Is were there is a atmosphere on earth that we
    cant see that keeps us on earth instead off
    floating into outer space.

5
Weak interaction and nuclear force
  • A nuclear forces is much stronger than any other
    forces, the nuclear is what holds the atom
    together in spite of the stronger electric force
    repulsion between in its protons.
  • Also these two are found inside of the nucleus.

6
Newtons first law
  • Galileo guessed the time of the falling bodies
    but had no why of proving the speed of the bodies
    that fell. For example, Galileo formed small
    angles, horizontal, the speed of the rolling
    balls were slow enough to measure with a water
    clock. Also Galileo proved that when the balls
    spead up that they improved with time.

7
Newtons second law
  • Newtons law says that the acceleration of an
    object produced by net applied force is directly
    related to the magnitude of the force. For
    example, the effect of a 10 newton force baseball
    would much greater than the same force acting on
    a truck.

8
Newton's third law
  • The third law is a every active force were there
    is an equal and a opposite reaction. Forces are
    found in pairs at most times. For example, think
    of a chair by the time u sit down in a chair,
    your body exerts a force downward and that chair
    needs to exert and equal force upward so the
    chair wont collapse.

9
FMxA
  • F ma lets us work out the forces at work on
    objects by multiplying the mass of the object by
    the acceleration of the object.
  • Example The force at work on a Formula 1 car as
    it starts a race! If the F1 car has a Mass of
    600kg and an Acceleration of 20m/s/s then we can
    work out the Force pushing the car by
    multiplyingthe Mass by the Acceleration like
    this 600 x 20 12000NF ma is the second law
    of motion proposed by Sir Isaac Newton.

10
MF/A
  • When you multiply a kilogram (mass unit) times a
    meter per second squared (acceleration unit) you
    get a kilogram-meter per second squared. So a
    unit for force is actually the kilogram-meter per
    second squared. However, no one really says that.
    The unit for force is named after Isaac Newton,
    and it is called the 'Newton', abbreviated 'N'.
    One Newton is one kilogram-meter per second
    squared. Another almost identical way to think
    about the force unit is that one Newton is the
    size of a force needed to accelerate a mass of
    one kilogram at a rate of one meter per second
    squared.

11
AF/M
  • aF/m, meaning that the amount some object
    accelerates is proportional to the force on it,
    and inversely proportional to the object's mass

12
WMxG
  • Weight has dimensions of a force. On the surface
    of the earth the amount of force pushing down on
    a scale is W Mg where g 9.8 m/sec is the
    acceleration of an object dropped at the surface
    of the earth.

13
MW/G
  • 'The response of any body - with any weight (w) -
    to gravity is thesame as its resistance to
    acceleration' That is the ratio of anybody's
    weight (w) divided by the acceleration (g) at
    which it willfreefall is equal to the ratio of
    the net force (f) exerted on and/orby it,
    divided by the acceleration (a) that is caused.

14
GW/M
  • each particle of matter attracts every other
    particle with a force which is directly
    proportional to the product of their masses and
    inversely proportional to the square of the
    distance between them. In other words, the larger
    a planet's mass and the closer to a planet an
    object is, the stronger the force of gravity on
    that object
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