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Law of inertia
   To explain the role of inertia in
    different situations;

   To determine the motion of the
    passenger inside the vehicles; and

   To state inertia in your own words.
Who have an idea of what is inertia?



   The property of a body that resists
    changes in a body’s condition of rest
    or of motion with constant velocity.

   The tendency of an object to persist in
    its state of rest or in uniform motion
    in a straight line.
Law of inertia
Law of inertia
According to Newton's first law...

    An object at rest will remain at rest
  unless acted on by a force. An object in
    motion continues in motion with the
   same speed and in the same direction
  unless acted upon by a force. This law is
                 often called
             "the law of inertia".
What does this mean?
This means that there is
 a natural tendency of
  objects to keep on
  doing what they're
doing. All objects resist
changes in their state of
        motion.

Example:

    Water
 Anobject at rest will remain at
 rest.

 An
   object in motion will remain in
 motion.
This law is the same reason why you should
         always wear your seatbelt.
The mass measures the inertia in our
                body.
“The more inertia a body has, the more
   difficult it is to start moving. It will
 also be more difficult to stop the body
       if it is originally in motion.”
Inertia is proportional to mass. Big masses resist
changing their motion more than smaller masses.




 A lot of inertia! The      Very little inertia. The
  large train resists      small baby carriage has
changing its motion.       very little resistance to
                             changes in motion.
Law of inertia
Law of inertia
A passenger sitting in the rear of
 a bus claims that he was injured
 when the driver slammed on the
 brakes, causing a suitcase at the
front to come flying towards him.
If you were the judge in this case,
what disposition would you make
            and why?
Ariel is a good racer of both
the car and the single motor. He
 is planning to join the national
competition for each event. The
  problem is- both events have
 the same schedule. If you were
Ariel, which competition would
    you choose? Justify your
               answer.
Law of inertia
Law of inertia

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Law of inertia

  • 2. To explain the role of inertia in different situations;  To determine the motion of the passenger inside the vehicles; and  To state inertia in your own words.
  • 3. Who have an idea of what is inertia?  The property of a body that resists changes in a body’s condition of rest or of motion with constant velocity.  The tendency of an object to persist in its state of rest or in uniform motion in a straight line.
  • 6. According to Newton's first law... An object at rest will remain at rest unless acted on by a force. An object in motion continues in motion with the same speed and in the same direction unless acted upon by a force. This law is often called "the law of inertia".
  • 7. What does this mean? This means that there is a natural tendency of objects to keep on doing what they're doing. All objects resist changes in their state of motion. Example: Water
  • 8.  Anobject at rest will remain at rest.  An object in motion will remain in motion.
  • 9. This law is the same reason why you should always wear your seatbelt.
  • 10. The mass measures the inertia in our body. “The more inertia a body has, the more difficult it is to start moving. It will also be more difficult to stop the body if it is originally in motion.”
  • 11. Inertia is proportional to mass. Big masses resist changing their motion more than smaller masses. A lot of inertia! The Very little inertia. The large train resists small baby carriage has changing its motion. very little resistance to changes in motion.
  • 14. A passenger sitting in the rear of a bus claims that he was injured when the driver slammed on the brakes, causing a suitcase at the front to come flying towards him. If you were the judge in this case, what disposition would you make and why?
  • 15. Ariel is a good racer of both the car and the single motor. He is planning to join the national competition for each event. The problem is- both events have the same schedule. If you were Ariel, which competition would you choose? Justify your answer.