1. by Ryan Perkins
Page 1

2. Newton’s Laws of Motion
• Law 1: Every material object continues in its state of
rest, or of uniform motion in a straight line, unless it is
compelled to change that state by forces impressed
upon it.
• Law 2: The acceleration of an object is directly
proportional to the net force acting on an object, is in the
direction of the net force, and is inversely proportional to
the mass of the object.
• Law 3: Whenever one object exerts a force on a second
object, the second object exerts an equal and opposite
force on the first.
Page 2

3. Law 1
• Every material object continues in its state of rest, or of
uniform motion in a straight line, unless it is compelled to
change that state by forces impressed upon it.
• Mass- The quantity of matter in a material object.
• Weight- The force upon an object due to gravity.
• What is the difference between mass and weight?
Halibut weight and baseball
Page 3

4. Law 2
• The acceleration of an object is directly proportional to
the net force acting on an object, is in the direction of the
net force, and is inversely proportional to the mass of the
object.
• Force- Strength or energy as an attribute of physical
action or movement
• Acceleration- Increase in the rate or speed of an
object.
Page 4

5. Law 2
• The force of one hand accelerates the
brick.
• Twice as much force produces twice as
much acceleration .
• Twice the force on twice the mass gives
the same acceleration.
Page 5

6. Friction-bicycle on grass vs. pavement
Page 6

7. Law 3
• Whenever one object exerts a force on a
second object, the second object exerts an
equal and opposite force on the first.
• The action and reaction of forces make up
the interaction between two things.
Page 7

8. Law 3
• 50 caliber video
• Helicopter
• Man with spring
Page 8

9. Page 9

10. Page 10

11. Page 11

12. Page 12

13. Summary
• An object at rest will remain at rest.
• An object in motion will remain in motion.
• When a force is applied to an object, it will
accelerate.
• When an object falls in air, the force is
equal to the weight minus the force of air
resistance.
• When one object applies force on a
second object, the second object applies
the same force back.
Page 13