Download Physics 1.3.2

Physics 9-12
CC/ESS: Phy 1.3
Analyze the motion of
objects based on the
principles of conservation of
momentum, conservation of
energy and impulse.
Clarifying Objective: Phy 1.3.2
Analyze the motion of objects based on the relationship between
momentum and impulse.
Instructional
Days:
Learning Targets:
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Define momentum as a vector quantity proportional to the product of mass and velocity, ; distinguish
momentum from inertia and velocity; develop a conceptual understanding that the same momentum
could be associated with a slow-moving massive object and an object moving at high velocity with a
very small mass (e.g.- 100 kg object moving 1 m/s has the same momentum as a 1-kg object moving
100m/s).
Conceptually and mathematically analyze Newton’s second law to relate the change in momentum to
acceleration in order to develop the impulse-momentum relationship – the impulse applied to an
object is equal to the resulting change in momentum
Analyze a force vs. time graph; compare the area under the graph to a calculated change in
momentum.
Analyze real world examples including the use of airbags in cars, time of contact and “followthrough” in throwing, catching, kicking, and hitting objects in sports, and bending your knees when
you jump from a height to the ground to prevent injury.
Mathematical Models:
Key Vocabulary:
Momentum
Impulse
Conservation of momentum
Elastic collision
Inelastic collision
Essential Questions:
1.What is the definition of momentum?
2.How do you calculate momentum for moving objects?
3.What is the definition of impulse?
4.How do you distinguish between momentum, inertia and velocity?
5.How does Newton's second law relate to changes in momentum?
6.How would you use a force-time graph to calculate change in momentum?
7.How would you analyze the effect of changes in mass and velocity on momentum?
8.How would you analyze real world examples of momentum and impulse?
9.How would you analyze the motion of objects based on the conservation of momentum?
10.How would you analyze the motion of objects based on the relationship between momentum
and impulse?
11.How would you evaluate the motion of objects based on the relationship between momentum
and impulse?
Resources and Links:
Activating Strategy:
Suggested Instructional Tasks:
Literacy Component:
Reading
Writing
Summarizing Strategy:
Differentiation:
Assessment:
ELL
EC
Formative
AIG
Summative