Transcript 110636_Newton’s_1_2_notes.pptx

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Newton’s
and
nd
2 Law of motion
Minute Minder
 3.
What is the speed of a car that
travels 20 meters in 5 seconds?
 4. What is the acceleration of a car
that went from 5 m/s to 25 m/s in 4
seconds?
3. What is the speed of a car that
travels 20 meters in 5 seconds?
4. What is the acceleration of a
car that went from 5 m/s to 25
m/s in 4 seconds?
Vocabulary

18. Net Force – the overall force when all individual forces are
added together.
Vocabulary

19. Unbalanced forces – a nonzero net force that changes an
object’s motion
Vocabulary

20. Balanced forces – equal forces acting on an object in opposite
directions
Vocabulary

21. mass – the amount of matter in an object.
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Newton’s
Law of Motion
AKA: Inertia

An object at rest tends to stay at rest and an object in motion tends
to stay in motion with the same speed and in the same direction
unless acted upon by an unbalanced force.
Newton’s
nd
2
Law of Motion

The net force of an object is equal to the product of its acceleration
and its mass.

Force = mass x acceleration

F=mxa
Newton’s
nd
2
Law of Motion

Units are Newtons (N) where N = kg x m/s^2

One Newton (N) = the force required to accelerate one kilogram of
mass at one meter per second per second
Read the Sample Problem on Page
53. Do #1and 2 here in your
notebook: