Impulse - Overview
Impulse - Overview
Momentum ($\vec{p}$) is a quantity that scales by the mass multiplied by the velocity of an object or system. Mathematically it is defined as:
$\vec{p} = m \vec{v}$.
Changes in momentum are called Impulse ($\vec{J}$) and are a result of forces applied for some time on an object. The Impulse-Momentum theorem explores this relationship.
$\vec{J}=\Delta{}\vec{p} = \Sigma{}\overline{\vec{F}}_{external}\Delta t$
Check out this short video about the Momentum.
Big Ideas
Big Idea 3: The interactions of an object with other objects can be described by forces.
Big Idea 4: Interactions between systems can result in changes in those systems.
Big Idea 5: Changes that occur as a result of interactions are constrained by conservation laws.
Learning Objectives
BoxSand Learning Objectives
- Introduce the concept that objects possess momentum.
- Introduce the concept of impulse.
- Be able to analyze a force vs time graph, relating area to impulse and change in momentum.
- Relate kinematic variables such as velocity, acceleration, and displacement of different objects subjected to forces over a given time period.
- Strengthen the ability to determine the relative direction of two vectors if they are related to one another by a scalar.
- Strengthen the ability to determine the change in vector quantities.
- Strengthen the ability to perform vector addition and subtraction.
- Strengthen the ability to estimate areas under non-linear curves.
College Board Learning Objectives
Enduring Understanding and Essential Knowledge
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Enduring Understanding |
Essential Knowledge |
Assumptions
Describe what the assumptions are and why they're important
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History
Physics Fun
Fun stuff
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