Transcription of Chapter 10. Energy - Physics & Astronomy
{{id}} {{{paragraph}}}
Example: confidence
Chapter 10. Energy - Physics & Astronomy
Chapter 10. EnergyThis pole vaulter can lift herself nearly 6 m (20 ft) off the ground by transforming the kinetic Energy of her run into gravitational potential Goal: To introduce the ideas of kinetic and potential Energy and to learn a new problem-solving strategy based on conservation of : A Natural Money Called Energy Kinetic Energy and Gravitational Potential Energy A Closer Look at Gravitational Potential Chapter 10. Energy A Closer Look at Gravitational Potential Energy Restoring Forces and Hooke s Law Elastic Potential Energy Elastic Collisions Energy Diagrams Money- Energy AnalogyFrom the Parable of the Lost PennyMoney Energy AnalogyFrom the law of conservation of energyKinetic and Potential EnergyThere are two basic forms of Energy . Kinetic Energy is an Energy of motionGravitational potential Energy is an Energy of positionpositionThe sum K+ Ugis not changed when an object is in freefall. Its initial and final values are equalKinetic and Potential EnergyThis is the conservation law for free fall motion: the quantityFree-Fall motion 222 ()fyiyifvvg yy = = = = 221122fyfiyivgyvgy+=++=++=++=+7motion: the quantityhas the same value before and after the motion.
v vfx ix==== 1 1 1 12 2 2 2 2 2 2 2fx fy f ix iy i v v gy v v gy+ + = + + 8 vf rrrr 1 12 2 2 2f f i i ... The graph shows force versus displacement for three springs. Rank in order, from largest to smallest, the spring constants k1, k2, and k3. A. k1 > k3 > k2 B. k3 > k2 > k1
Loading..
Tags:
Information
Domain:
Source:
Link to this page:
Please notify us if you found a problem with this document: