# Elastic Potential Energy Questions Elastic Potential Energy Elastic

- Slides: 18

Elastic Potential Energy • • • Questions <? > Elastic Potential Energy Elastic Examples Elastic + Gravitational Examples Non-conservative forces and friction

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)

- Elastic potential energy questions
- Elastic potential energy worksheet with answers
- Potential energy meaning
- Further mechanics elastic strings and springs
- What is the definition of chemical potential energy
- Triangle for elastic potential energy
- Types of collisions
- A student places her 500g physics book
- Energy stored in wire formula
- Energy move
- Elastic potential energy formula
- Potential energy
- Kinetic energy formula
- Microscopic structure of hyaline cartilage
- Electrical potential
- Electric field lines
- Joules to newtons
- Potential energy of a spring at equilibrium
- Formula of energy