Introduction
The Linear Momentum unit explores how motion is affected by forces during interactions, particularly collisions and explosions. Momentum is a vector quantity dependent on mass and velocity. Conservation of momentum in isolated systems is a powerful tool for analyzing dynamic events.
Linear Momentum: Measure of motion, defined as p = m·v.
Impulse: Product of force and the time it acts, equal to the change in momentum: J = F·Δt.
Impulse-Momentum Theorem: Impulse on an object equals its change in momentum: J = Δp.
Conservation of Linear Momentum: In a closed, isolated system, total momentum is conserved: Σpinitial = Σpfinal.
Summary of Key Equations
1. p = m·v (Linear Momentum)
2. J = F·Δt (Impulse)
3. J = Δp (Impulse-Momentum Theorem)
4. Σpinitial = Σpfinal (Conservation of Momentum)
2. J = F·Δt (Impulse)
3. J = Δp (Impulse-Momentum Theorem)
4. Σpinitial = Σpfinal (Conservation of Momentum)
Other Resources
- Organic Chemistry Tutor — Linear Momentum & Conservation
- 6-Minute Unit Review
- Flipping Physics Exam Review
- Physics By Brown — Momentum Review
- Organic Chem Tutor 1-Hour Video — Collisions & Momentum
- Linear Momentum Practice Problems (Varsity Tutors)
- Khan Academy Practice
- Practice Problems (Simple)
- Practice Test 1 (Impulse & Momentum)