Elastic Potential Energy Questions Elastic Potential Energy Elastic
- Slides: 20
Elastic Potential Energy • • • Questions <? > Elastic Potential Energy Elastic Examples Elastic + Gravitational Examples Non-conservative forces and friction
Energy checklist •
Elastic Forces •
Work done by relaxing spring •
2 types of Potential Energy • • KE+PE +PE KE+PE + PE
Elastic Example •
Elastic & Gravitational Example I •
Elastic & Gravitational Example I •
Potential Energy Zero Point • For gravitational PE – Arbitrary, anywhere you like. • For elastic PE – Must be at equilibrium! • For gravitational + elastic PE – Easiest to chose at elastic equilibrium for both – Gravitational (+) above (-) below
Elastic & Gravitational Example II •
Bungee Jump (cont) •
Elastic & Gravitational Example III •
Trampoline (cont) •
Forces and Work • Gravity (Potential Energy) • Elastic (Potential Energy) • Electrostatic (Potential Energy – next semester) • Molecular/ Nuclear (Potential Energy – take more physics) • Any other force whose work only depends on endpoints • Normal (Never does work) • Circular(Never does work) • Friction (Requires fudge factor) • Applied Forces (Requires fudge factor, or may not be appropriate for work/energy)
Additional Examples
Example I • Hanging vine • Only forces acting are gravity and tension in vine
Example II • Skier Only forces acting are gravity and normal force
Example III • Sled Only forces acting are gravity and normal force Since you know height, incline doesn’t matter (for frictionless)
Example IV • Only forces acting are gravity and spring (both PE’s)
Example – Space launch •
- Elastic potential energy examples
- Mxgxh formula
- Kinetic energy
- Further mechanics elastic strings and springs
- Elastic potential energy
- What is elastic potential energy
- Inelastic collision examples real world
- Elastic potential energy problems
- Energy stored in a stretched wire formula
- Energy move
- Elastic potential energy formula
- Formula of potential energy
- Potential energy class 9
- Hyaline cartilage
- Electric potential energy
- Potential energy of an electric field
- Pe=qed
- Potential energy
- Electrical potential energy formula
- Mechanical energy pics
- What is energy