### Work Energy And Impulse Momentum Principles Conservation Of Momentum

**Work Energy and Impulse Momentum Principles - Concepts to Remember**

**Work and Energy**

**Energy Forms**: Kinetic, potential (gravitational, elastic), internal, mechanical, thermal energies, etc.**Work-energy Theorem**: Work done = change in kinetic energy.**Potential Energy**: Dependence on position/configuration.**Conservative/Non-conservative Forces**: Work dependence on path.**Conservation of Energy**: Total energy constant in isolated systems.

**Impulse and Momentum**

**Impulse-momentum Theorem**: Net impulse = change in momentum.**Momentum Vector Quantity**: Magnitude and direction matter.**Conservation of Momentum**: Total momentum constant (no external forces).

**Collisions**

**Collision Types**: Perfectly elastic, inelastic, completely inelastic.**Momentum/Energy Conservation**: In elastic and inelastic collisions.**Coefficient of Restitution**: Measures collision elasticity.

**Applications**

**Forces, Work, Energy, Momentum Calculations**: Mechanical systems and scenarios.**Real-Life Situations**: Collision analysis in sports, transport, engineering.

**Problem-Solving Techniques**

**Concept Recognition and Application**: Work-energy, impulse-momentum principles.**Vector Analysis**: Directions, signs of quantities.**Energy Conservation**: Relating initial and final energy states.

**Practice and Revision**

**Practice Questions**: Strengthen understanding, problem-solving skills.**Regular Review**: Retain knowledge for JEE and CBSE board exams.