Unit 4 Notetakers
... ______________________ of the path the object takes between the 2 points. (The work done depends only on the initial and final positions.) ...
... ______________________ of the path the object takes between the 2 points. (The work done depends only on the initial and final positions.) ...
Conservation of Energy 2015
... = KEf - KEi = ½ mvf2 - ½ mvi2 Work = the change in kinetic energy ...
... = KEf - KEi = ½ mvf2 - ½ mvi2 Work = the change in kinetic energy ...
Lecture 16
... Mechanical energy = KE + PE = mv2/2 + mgy In the absence of applied forces and friction: (that is, non-conservative forces) (change in KE) + (change in PE) = 0 so mechanical energy is conserved. ...
... Mechanical energy = KE + PE = mv2/2 + mgy In the absence of applied forces and friction: (that is, non-conservative forces) (change in KE) + (change in PE) = 0 so mechanical energy is conserved. ...
Work, Energy and Momentum
... Conservative and dissipative forces: In the case of gravitational potential energy and elastic potential energy, we have seen that, the work done is independent of the path followed by the body and depends only upon the initial and final position. In both case the total mechanical energy remains con ...
... Conservative and dissipative forces: In the case of gravitational potential energy and elastic potential energy, we have seen that, the work done is independent of the path followed by the body and depends only upon the initial and final position. In both case the total mechanical energy remains con ...
Energy changes - Teaching Advanced Physics
... Student experiment: Moving a block along the bench This is a very effective and simple experiment. A block is given an initial push so that it slides along the bench. It passes through a light gate, so that its velocity is measured; the distance travelled beyond the gate is then measured. Students s ...
... Student experiment: Moving a block along the bench This is a very effective and simple experiment. A block is given an initial push so that it slides along the bench. It passes through a light gate, so that its velocity is measured; the distance travelled beyond the gate is then measured. Students s ...
HNRS 227 Lecture #2 Chapters 2 and 3
... As the temperature of a solid increases, the vibrations of the individual molecules become larger. When these vibrations become larger, the average distance between the molecules increases to accommodate these larger oscillations, and the solid expands. In a liquid or a gas, the individual molecules ...
... As the temperature of a solid increases, the vibrations of the individual molecules become larger. When these vibrations become larger, the average distance between the molecules increases to accommodate these larger oscillations, and the solid expands. In a liquid or a gas, the individual molecules ...
Energy review
... 30. The diagram below shows a toy cart possessing 16 joules of kinetic energy traveling on a frictionless, horizontal surface toward a horizontal spring. The apple falls and hits the spring, compressing it 0.1 meter from its rest position. If all of the gravitational potential energy of the apple on ...
... 30. The diagram below shows a toy cart possessing 16 joules of kinetic energy traveling on a frictionless, horizontal surface toward a horizontal spring. The apple falls and hits the spring, compressing it 0.1 meter from its rest position. If all of the gravitational potential energy of the apple on ...
EOCT Review (Extra Credit)
... o __________________________ friction occurs when one solid surface slides over another solid surface. o __________________________ friction occurs when an object rolls across a solid surface. o __________________________ friction occurs between the surfaces of two objects that touch but do not move ...
... o __________________________ friction occurs when one solid surface slides over another solid surface. o __________________________ friction occurs when an object rolls across a solid surface. o __________________________ friction occurs between the surfaces of two objects that touch but do not move ...
Kinetics and Equilibrium
... Factors Affecting Rate 6. Catalyst: substance that increases rate of reaction, provides a shorter or alternate pathway by lowering the activation energy of the reaction. Catalysts remain unchanged during the reaction and can be reused. ...
... Factors Affecting Rate 6. Catalyst: substance that increases rate of reaction, provides a shorter or alternate pathway by lowering the activation energy of the reaction. Catalysts remain unchanged during the reaction and can be reused. ...
Chapter #5 energy-multiple
... stops after traveling a distance d. If the driver had been traveling with twice the velocity, what would be the stopping distance compared to the distance in the first trial? A. Two times greater B. Four times greater C. The same D. Half as much E. One-quarter as much ...
... stops after traveling a distance d. If the driver had been traveling with twice the velocity, what would be the stopping distance compared to the distance in the first trial? A. Two times greater B. Four times greater C. The same D. Half as much E. One-quarter as much ...
Energy Multiple Choice Homework
... stops after traveling a distance d. If the driver had been traveling with twice the velocity, what would be the stopping distance compared to the distance in the first trial? A. Two times greater B. Four times greater C. The same D. Half as much E. One-quarter as much ...
... stops after traveling a distance d. If the driver had been traveling with twice the velocity, what would be the stopping distance compared to the distance in the first trial? A. Two times greater B. Four times greater C. The same D. Half as much E. One-quarter as much ...
Non-conservative forces
... How far does the spring get compress as the block comes momentarily to a ...
... How far does the spring get compress as the block comes momentarily to a ...
09-30--L4c-Work and Potential Energy
... work done by all non-conservative forces on that system. 6. Use any of the relationships derived in Module 4 between work, force, kinetic energy, and potential energy to calculate the work done by some force on an object, or to calculate other physical quantities (force, distance, speed, etc.). 7. C ...
... work done by all non-conservative forces on that system. 6. Use any of the relationships derived in Module 4 between work, force, kinetic energy, and potential energy to calculate the work done by some force on an object, or to calculate other physical quantities (force, distance, speed, etc.). 7. C ...
Chapter 10 Simple Harmonic Motion and Elasticity continued
... The mass density of a substance is the mass of a substance divided by its volume: ...
... The mass density of a substance is the mass of a substance divided by its volume: ...
解答六 10.49. Model: Since there is no friction, the sum of the kinetic
... (c) The total energy line at 51.25 J is shown on the graph above. (d) The turning point occurs where the total energy line crosses the potential energy curve. We can see from the graph that this is at approximately 2.5 m. For a more accurate value, the potential energy function is U 20x J. The TE ...
... (c) The total energy line at 51.25 J is shown on the graph above. (d) The turning point occurs where the total energy line crosses the potential energy curve. We can see from the graph that this is at approximately 2.5 m. For a more accurate value, the potential energy function is U 20x J. The TE ...