Work, Power, Energy
... The reference point can be anywhere because you are only interested in the change in energy, not the actual energy. When ΔPEg > 0, work is done on the object and its potential energy increases. When ΔPEg < 0, work is done by the object and its potential energy decreases. ...
... The reference point can be anywhere because you are only interested in the change in energy, not the actual energy. When ΔPEg > 0, work is done on the object and its potential energy increases. When ΔPEg < 0, work is done by the object and its potential energy decreases. ...
Liquid-gas phase change dynamic equilibrium: forward and reverse
... A vapor pressure curve shows temperature and pressure for liquid and gas phases only. Fig. 11.5, p. 380 What does high temperature favor? What does high pressure favor? A phase diagram shows temperature and pressure for liquid, gas, and solid phases. Fig. 11.14, p. 390 The diagram shows the phase of ...
... A vapor pressure curve shows temperature and pressure for liquid and gas phases only. Fig. 11.5, p. 380 What does high temperature favor? What does high pressure favor? A phase diagram shows temperature and pressure for liquid, gas, and solid phases. Fig. 11.14, p. 390 The diagram shows the phase of ...
Work-Energy Theorem
... Suppose the player in your game must push a secret stone wall at least 2m to gain access to a bonus level. If the player’s character can push with a horizontal force of 1500N and kinetic frictional force of 50N is working against him, how much work total will it take to move the wall out of the way? ...
... Suppose the player in your game must push a secret stone wall at least 2m to gain access to a bonus level. If the player’s character can push with a horizontal force of 1500N and kinetic frictional force of 50N is working against him, how much work total will it take to move the wall out of the way? ...
Elastic Potential Energy (Warning: Algebra required)
... 1. Consider a mass m attached to a horizontal spring of spring constant k resting on a frictionless table. All measurements are from the equilibrium rest point. An external applied force F is gradually applied to compress the spring until the force is just balanced by the spring force. Write a relat ...
... 1. Consider a mass m attached to a horizontal spring of spring constant k resting on a frictionless table. All measurements are from the equilibrium rest point. An external applied force F is gradually applied to compress the spring until the force is just balanced by the spring force. Write a relat ...
Lecture 8
... The enthalpy change (ΔH) in a reaction is equal to the heat input under conditions of constant temperature and pressure. Enthalpy is commonly used as a measure of the energies involved in chemical reactions. Endothermic reactions (positive ΔH) are ones requiring a heat input, and exothermic reaction ...
... The enthalpy change (ΔH) in a reaction is equal to the heat input under conditions of constant temperature and pressure. Enthalpy is commonly used as a measure of the energies involved in chemical reactions. Endothermic reactions (positive ΔH) are ones requiring a heat input, and exothermic reaction ...
15 Oct 08 - Seattle Central College
... • Some examples of energy interconversion... – sunlight: radiant (electromagnetic) energy...plants harvest sunlight and convert it to sugars (chemical energy) – heat: EM radiation is converted to kinetic energy when it “excites” the motion of molecules – food: the sugars (chemical energy content) fr ...
... • Some examples of energy interconversion... – sunlight: radiant (electromagnetic) energy...plants harvest sunlight and convert it to sugars (chemical energy) – heat: EM radiation is converted to kinetic energy when it “excites” the motion of molecules – food: the sugars (chemical energy content) fr ...
GRAVITATIONAL POTENTIAL ENERGY
... position (where the spring is neither page - 8 elongated or compressed) is taken as the coordinate x=0. This gives F(x)= -k x Otherwise, if the equilibrium position ...
... position (where the spring is neither page - 8 elongated or compressed) is taken as the coordinate x=0. This gives F(x)= -k x Otherwise, if the equilibrium position ...
TWGHs. Kap Yan Directors` College
... Deceleration a = f/m = 78750 / 0.1 = 787500 Alternatively, v2 = u2 + 2as => 4502 = 6002 + 2a(0.1) => a = -787500 m s-2 v = u + at => 450 = 600 + (-787500)t => t = 0.190 ms 16. Statement (1) is correct because an alpha source would produce a lot of ion pairs, therefore the ions would neutralize the c ...
... Deceleration a = f/m = 78750 / 0.1 = 787500 Alternatively, v2 = u2 + 2as => 4502 = 6002 + 2a(0.1) => a = -787500 m s-2 v = u + at => 450 = 600 + (-787500)t => t = 0.190 ms 16. Statement (1) is correct because an alpha source would produce a lot of ion pairs, therefore the ions would neutralize the c ...
- St. William the Abbot School
... 7.Nuclear-stored in nucleus of atom 8.Electromagnetic-travels through space as waves Factors Affecting Kinetic Energy Mass and velocity ( speed in a given direction). The energy increases as mass and velocity increases. The greatest potential energy on a roller coaster is at the top of the hill bef ...
... 7.Nuclear-stored in nucleus of atom 8.Electromagnetic-travels through space as waves Factors Affecting Kinetic Energy Mass and velocity ( speed in a given direction). The energy increases as mass and velocity increases. The greatest potential energy on a roller coaster is at the top of the hill bef ...
Date ______ Period _____ CP Physics PRACTICE Quiz Work
... DEGREE MODE, and include proper units with your answer. In order to clear his driveway of 18+ inches of snow from a recent storm, disgruntled Mr. Bradshaw pushed down on his shovel with a force of 400 N at an angle of 35 degrees. Assume the snow in question has a mass of 20 kg. If he pushed the snow ...
... DEGREE MODE, and include proper units with your answer. In order to clear his driveway of 18+ inches of snow from a recent storm, disgruntled Mr. Bradshaw pushed down on his shovel with a force of 400 N at an angle of 35 degrees. Assume the snow in question has a mass of 20 kg. If he pushed the snow ...
No Slide Title
... “a device that is used to manipulate the amount and/or direction of force when work is done” A common misconception is that machines are used to do a task with less work than would be needed to do the task without the machine. They do not! In fact (mainly because of friction), you actually do more w ...
... “a device that is used to manipulate the amount and/or direction of force when work is done” A common misconception is that machines are used to do a task with less work than would be needed to do the task without the machine. They do not! In fact (mainly because of friction), you actually do more w ...
07._ConservationOfEnergy
... A block of mass m is launched from a spring of constant k that is compressed a distance x0. The block then slides on a horizontal surface of frictional coefficient . How far does the block slide before coming to rest? Initial state: Launch: ...
... A block of mass m is launched from a spring of constant k that is compressed a distance x0. The block then slides on a horizontal surface of frictional coefficient . How far does the block slide before coming to rest? Initial state: Launch: ...
No Slide Title
... If there is no friction, an arrow shot with 43 J of elastic PE, will have this much KE after it leaves the bow. ...
... If there is no friction, an arrow shot with 43 J of elastic PE, will have this much KE after it leaves the bow. ...
Energy, Power, Work review
... If there is no friction, an arrow shot with 43 J of elastic PE, will have this much KE after it leaves the bow. ...
... If there is no friction, an arrow shot with 43 J of elastic PE, will have this much KE after it leaves the bow. ...
Conservation of Energy Worksheet
... A rollercoaster is designed as shown below. If the roller coaster starts at the top of the first hill from rest, describe what will happen to the rollercoaster. How could you fix this ...
... A rollercoaster is designed as shown below. If the roller coaster starts at the top of the first hill from rest, describe what will happen to the rollercoaster. How could you fix this ...
07._ConservationOfEnergy
... If it takes the same amount of work to push a trunk across a rough floor as it does to lift a weight to the same distance straight upward. How do the amounts of work compare if the trunk & weight are moved along curved paths between the same starting & end points? ...
... If it takes the same amount of work to push a trunk across a rough floor as it does to lift a weight to the same distance straight upward. How do the amounts of work compare if the trunk & weight are moved along curved paths between the same starting & end points? ...
Homework 6 Problems: Energy and Work
... b. Assuming the frictional force is constant, determine how much time elapses between the moment the bullet enters the tree and the moment it stops moving. Answer: (a) To determine the average frictional force, we use the work-energy theorem ...
... b. Assuming the frictional force is constant, determine how much time elapses between the moment the bullet enters the tree and the moment it stops moving. Answer: (a) To determine the average frictional force, we use the work-energy theorem ...
Chapter 5
... Positive if the force and the displacement are in the same direction Negative if the force and the displacement are in the opposite direction ...
... Positive if the force and the displacement are in the same direction Negative if the force and the displacement are in the opposite direction ...
Conservation of Energy
... • A force is conservative if work done on object moving between two points is independent of the path the object takes between the points – The work depends only upon the initial and final positions of the object – Any conservative force can have a potential energy function associated with it Exampl ...
... • A force is conservative if work done on object moving between two points is independent of the path the object takes between the points – The work depends only upon the initial and final positions of the object – Any conservative force can have a potential energy function associated with it Exampl ...
5.1Communities and ecosystems – summary of
... 5.1.13 Explain that energy enters and leaves ecosystems, but nutrients must be recycled. Mark Scheme M. N. O. P. Q. R. S. T. ...
... 5.1.13 Explain that energy enters and leaves ecosystems, but nutrients must be recycled. Mark Scheme M. N. O. P. Q. R. S. T. ...
Pressure - Jay Mathy Science Wiki
... Absolute Pressure Takes into account air pressure above water plus the pressure from the water! ...
... Absolute Pressure Takes into account air pressure above water plus the pressure from the water! ...
