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Newton’s Laws
Newton’s 1st Law (1)
• Newton’s first law states that an
object will remain at rest or
moving at a constant velocity
until...
Newton’s 1st Law (2)
• What does that mean?
• Basically, an object will keep doing
what it’s doing until something
changes...
Newton’s 1st Law (3)
• Newton’s 1st law is also referred to
as “The Law of Inertia”
• Inertia: is the tendency of an objec...
Newton’s 2nd Law (1)
• Newton’s second law of motion states that
acceleration depends on the net force
acting on the objec...
Newton’s 3rd Law (1)
• Newton’s 3rd law states that if one
object exerts a force on another
object, then the second object...
Newton’s 3rd Law (2)
• In other words: For every action,
there is an equal an opposite
reaction.
• Examples?
Momentum (1)
• Momentum: a characteristic of a
moving object that depends on both
the mass and velocity of the object.
Mom...
Momentum (2)
• The LAW of conservation of
momentum states the total
momentum of any group of objects
remains the same, or ...
Momentum (3)
• What does that mean?
• Well… Momentum can be transferred
from one object to another, but it is
never lost.
...
Momentum (4)
• For a great visual….. Page 398 in the
text book.
• This will show us the difference in
how momentum works w...
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Newtons laws

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Newtons laws

  1. 1. Newton’s Laws
  2. 2. Newton’s 1st Law (1) • Newton’s first law states that an object will remain at rest or moving at a constant velocity until acted upon by an unbalanced force.
  3. 3. Newton’s 1st Law (2) • What does that mean? • Basically, an object will keep doing what it’s doing until something changes it. • Examples?
  4. 4. Newton’s 1st Law (3) • Newton’s 1st law is also referred to as “The Law of Inertia” • Inertia: is the tendency of an object to resist a change in it’s motion. – Example: Remember the car crash video? If not wearing a seatbelt, the passenger’s inertia keeps them moving forward as the car stops (cracking head on windshield).
  5. 5. Newton’s 2nd Law (1) • Newton’s second law of motion states that acceleration depends on the net force acting on the object and on the object’s mass. Acceleration = Net Force/Mass **this is acceleration due to force; different than acceleration due to velocity and time
  6. 6. Newton’s 3rd Law (1) • Newton’s 3rd law states that if one object exerts a force on another object, then the second object exerts a force of equal strength in the opposite direction on the first object.
  7. 7. Newton’s 3rd Law (2) • In other words: For every action, there is an equal an opposite reaction. • Examples?
  8. 8. Momentum (1) • Momentum: a characteristic of a moving object that depends on both the mass and velocity of the object. Momentum=Mass x Velocity
  9. 9. Momentum (2) • The LAW of conservation of momentum states the total momentum of any group of objects remains the same, or is conserved, unless outside forces act on the objects. – Friction is one of the outside forces that can act on the objects and take away momentum.
  10. 10. Momentum (3) • What does that mean? • Well… Momentum can be transferred from one object to another, but it is never lost. – Example? Playing pool!!!
  11. 11. Momentum (4) • For a great visual….. Page 398 in the text book. • This will show us the difference in how momentum works with two moving objects, one moving object and two connected objects.

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