'Kx 2' diaporamas de présentation

AP Physics Chapter 5 Work and Energy

AP Physics Chapter 5 Work and Energy. Chapter 5: Work and Energy. 5.1 Work Done by a Constant Force 5.2 Work Done by a Variable Force 5.3 The Work-Energy Theorem: Kinetic Energy 5.4 Potential Energy 5.5 The Conservation of Energy 5.6 Power. Chapter 5: Learning Objectives.

2.81k views • 89 slides

????????

????????. ??. ??????. ??. ??. ????. ????. ax 2 +bx+c=0 ? a?0 ?. ??????. ??????. ???. ??. ???. ?????. ??????. ????????. ???????? ????. ??. ????. ????? ???????. ?????. ?????? ?? ???? ?? ??????????????? 2 ? ??.

977 views • 56 slides

???

499 views • 35 slides

Work

493 views • 31 slides

Summary Lecture 7

437 views • 27 slides

???

363 views • 26 slides

Springs

391 views • 22 slides

????

????. y. 3. x. o. 2. ????. 1. ?????????????? ??. A. 2. ????????????? A ???????? ______. 3. ???? y=x+2 ??????? ____ ??. 4. ? P ? a,b ?? Q ? c,d ?????? y=-4x+3 ????????? a<c ?? b ? d ?????? ____. y. y 2 =x+a. x. o. y 1 =kx+b. 3. y. x. o. 2. -4.

383 views • 22 slides

Spring Potential Energy

Spring Potential Energy. Work done by an applied force is stretching or compressing a spring can be recovered by removing the applied force, so, like gravity, the spring force is conservative. In fig. a) spring in equilibrium position (the spring is not compressed or stretched)

416 views • 13 slides

?????

?????. ????. 1. ??????? ????? P(-2?3)? ?? k ???( ) A.-6 B. C. D.6. A. 2.?????????????????? P? ???????( ) A. (x?0) B (x?0) C. (x?0)

219 views • 12 slides

???????? ?????

???????? ?????. ????. 1. ??????? ????? P(-2?3)? ?? k ???( ) A.-6 B. C. D.6. A. 2.?????????????????? P? ???????( ) A. (x?0) B (x?0)

255 views • 12 slides

202 views • 12 slides

?????

?????. ???. 1. 1. y =. y =. x. x. 2x. y =. 3. ???????????????????. 1. 1. y =. y =. x. x. 1. 1. 3. 3. y =. y =. y =. y =. 3x. 3x. 2x. 2x. ????. ?????????????? ? ? ? ?

214 views • 12 slides

Energy

219 views • 11 slides

Elastic Energy

Elastic Energy. It takes force to press a spring together. More compression requires stronger force. It takes force to extend a spring. More extension requires stronger force. Compression and Extension. Spring Constant. The distance a spring moves is proportional to the force applied.

290 views • 11 slides

PHYSICS CLASS ACTIVITY

228 views • 7 slides

Mechanical Energy

Mechanical Energy. Net Work. The work-energy principle is D K = W net . The work can be divided into parts due to conservative and non-conservative forces. Kinetic energy D K = W con + W non. d. F f. F g. Kinetic and Potential Energy.

186 views • 7 slides

Motion, Forces and Energy Lecture 7: Potential Energy & Conservation

Motion, Forces and Energy Lecture 7: Potential Energy & Conservation. The name potential energy implies that the object in question has the capability of either gaining kinetic energy or doing work on some other object: Gravitational Potential Energy U g = m g h

255 views • 6 slides

Energy Book-keeping

92 views • 4 slides

To prove by induction that (1 + x) n ? 1 + nx for x > -1, n ? N

To prove by induction that (1 + x) n ? 1 + nx for x > -1, n ? N. Note: x>-1. Hence (1+x)>0. Next. To prove by induction that (1 + x) n ? 1 + nx for x > -1, n ?N. Prove: (1 + x) n ? 1 + nx for n=1. For n = 1 (1 + x) 1 = 1 + x True for n = 1. Next.

134 views • 3 slides