Chapter 6 Work, Power and Energy
... Units of Work = (Newton)(Meter) 1 Newton•Meter = 1 Joule A Joule is a unit of Energy and it takes energy to do work and work done on an object either causes it to move (kinetic energy) or is stored (potential energy) ...
... Units of Work = (Newton)(Meter) 1 Newton•Meter = 1 Joule A Joule is a unit of Energy and it takes energy to do work and work done on an object either causes it to move (kinetic energy) or is stored (potential energy) ...
Work, Power and Energy, (study buddy)
... Kinetic Energy = ½ * m * v2 (note that KE cannot be negative) Change in Kinetic Energy = Uk final – Uk initial KE is directly proportional to the mass, but is directly proportional to the velocity squared o Potential Energy (definition/equation) Symbol: PE Unit:Joule Stored Energy. It has the potent ...
... Kinetic Energy = ½ * m * v2 (note that KE cannot be negative) Change in Kinetic Energy = Uk final – Uk initial KE is directly proportional to the mass, but is directly proportional to the velocity squared o Potential Energy (definition/equation) Symbol: PE Unit:Joule Stored Energy. It has the potent ...
Physics Semester 1 Review
... 6. What is the minimum amount of energy required to completely melt a 5-kg lead brick which has a starting temperature of 20 °C? The melting point of lead is 328 °C. The specific heat capacity of lead is 128 J/(kg·C°); and its latent heat of fusion is 23200 J/kg. 7. A blue supergiant star has a radi ...
... 6. What is the minimum amount of energy required to completely melt a 5-kg lead brick which has a starting temperature of 20 °C? The melting point of lead is 328 °C. The specific heat capacity of lead is 128 J/(kg·C°); and its latent heat of fusion is 23200 J/kg. 7. A blue supergiant star has a radi ...
energy - New Haven Science
... operated infrared remote, which causes the garage door motor to turn, which lifts up the garage door, compressing the spring.List all the possible energy changes from start to finish in this device, and identify where energy might be lost along the way. Sketch a diagram if you need to. ------------A ...
... operated infrared remote, which causes the garage door motor to turn, which lifts up the garage door, compressing the spring.List all the possible energy changes from start to finish in this device, and identify where energy might be lost along the way. Sketch a diagram if you need to. ------------A ...
SI Exam 2 Review
... i) Another way to look at work is considering the direction of the Force and change in displacement, if same direction + if opposite b) Basic concept total mechanical energy ETotal = K total + Utotal or Ef = Ei c) Potential Energy a. Equations for these types of problems Gravitionional Potential Ene ...
... i) Another way to look at work is considering the direction of the Force and change in displacement, if same direction + if opposite b) Basic concept total mechanical energy ETotal = K total + Utotal or Ef = Ei c) Potential Energy a. Equations for these types of problems Gravitionional Potential Ene ...
ABCT2772
... a. discriminate different Thermodynamics functions and calculate their values in simple processes b. use the Thermodynamics principles and functions to analysis simple chemical systems and determine the effect of external conditions on their equilibrium positions. c. demonstrate a better understandi ...
... a. discriminate different Thermodynamics functions and calculate their values in simple processes b. use the Thermodynamics principles and functions to analysis simple chemical systems and determine the effect of external conditions on their equilibrium positions. c. demonstrate a better understandi ...
gravitational mechanical energy
... [ Notice, had we chosen VB - VA ≡ + W (A Æ B) we would have ended up with something like KB - VB = KA - VA ] K + U = E is defined as the mechanical energy of the particle Since A and B are two arbitrary points along the trajectory of the particle, the result in the previous page indicates that the m ...
... [ Notice, had we chosen VB - VA ≡ + W (A Æ B) we would have ended up with something like KB - VB = KA - VA ] K + U = E is defined as the mechanical energy of the particle Since A and B are two arbitrary points along the trajectory of the particle, the result in the previous page indicates that the m ...
Energy - KSU Web Home
... Rate of Change of Energy • Delta Energy / delta time = power • OR Work / delta time (for strictly mechanical energy) = power • Power units is J/s = watt • Examples of power/energy relationships: – Heat takes a lot of energy, so it requires more watts (AC unit) whereas sound takes next to no energy ...
... Rate of Change of Energy • Delta Energy / delta time = power • OR Work / delta time (for strictly mechanical energy) = power • Power units is J/s = watt • Examples of power/energy relationships: – Heat takes a lot of energy, so it requires more watts (AC unit) whereas sound takes next to no energy ...
Conservation of Mechanical Energy
... » There are conditions under which the ME total will be a constant value and conditions under which it will be a changing value. » We can categorize forces based upon whether or not their presence is capable of changing an object's total mechanical energy. ...
... » There are conditions under which the ME total will be a constant value and conditions under which it will be a changing value. » We can categorize forces based upon whether or not their presence is capable of changing an object's total mechanical energy. ...
Chapter 5
... kilowatt hours (kWh) are often used in electric bills This is a unit of energy, not power ...
... kilowatt hours (kWh) are often used in electric bills This is a unit of energy, not power ...
National 5 Chemistry Prelim Revision 1
... The fractional distillation of crude oil depends on the fact that different hydrocarbons have different A ...
... The fractional distillation of crude oil depends on the fact that different hydrocarbons have different A ...
WORK AND ENERGY
... Example A car moving at 100 km/h has 4 times as much kinetic energy as a car moving at 50 km/h. This is because the K.E. is proportional to V squared. This means that takes 4 times the braking force to stop the faster car (or 4 times the distance to stop in, for equal braking forces). Likewise, the ...
... Example A car moving at 100 km/h has 4 times as much kinetic energy as a car moving at 50 km/h. This is because the K.E. is proportional to V squared. This means that takes 4 times the braking force to stop the faster car (or 4 times the distance to stop in, for equal braking forces). Likewise, the ...
PPT
... A rocket has 3.50x103 J of chemical potential energy. The stored chemical energy is transformed into gravitational potential energy when it is launched. What is the efficiency of the rocket’s transformation of energy if the 0.5kg rocket travels 1.00x102 m. ...
... A rocket has 3.50x103 J of chemical potential energy. The stored chemical energy is transformed into gravitational potential energy when it is launched. What is the efficiency of the rocket’s transformation of energy if the 0.5kg rocket travels 1.00x102 m. ...
Work-Kinetic Energy
... In the case in which work is done on a system and the only change in the system is in its speed, the work done by the net force equals the change in kinetic energy of the system. We can also define the kinetic energy ...
... In the case in which work is done on a system and the only change in the system is in its speed, the work done by the net force equals the change in kinetic energy of the system. We can also define the kinetic energy ...
Conservation of Energy
... Potential Energy is the energy stored within a system-- also called the energy of configuration. • it can only be defined in terms of conservative forces-- not non-conservative forces! If we are dealing with a conservative system, then the change in Potential Energy will be equal to the work done by ...
... Potential Energy is the energy stored within a system-- also called the energy of configuration. • it can only be defined in terms of conservative forces-- not non-conservative forces! If we are dealing with a conservative system, then the change in Potential Energy will be equal to the work done by ...
Key - Sardis Secondary
... 15. What is the relationship between the kinetic energy of molecules and their physical state? ...
... 15. What is the relationship between the kinetic energy of molecules and their physical state? ...
chemical change
... chemical or physical change ex - figure 5 on page 25 – new substances created, but same atoms are simply rearranged Energy = the ability to do work or cause change KEY CONCEPT – every chemical and physical change in matter includes a change in energy! o Bending a paperclip takes energy o ice m ...
... chemical or physical change ex - figure 5 on page 25 – new substances created, but same atoms are simply rearranged Energy = the ability to do work or cause change KEY CONCEPT – every chemical and physical change in matter includes a change in energy! o Bending a paperclip takes energy o ice m ...
Energy Practice Test
... moves in a horizontal circle of radius 0.5 m with a constant speed of 5 m/s. How much work is done on the ball by the string during each revolution? ,(A. OJ (B) 0.5 J (C) 1.0 J (D) 211 J (E) 511 J If a p~'ticle moves i~,such a way that its ~osition.x is descnbed as a function oftnne t by x = r12, th ...
... moves in a horizontal circle of radius 0.5 m with a constant speed of 5 m/s. How much work is done on the ball by the string during each revolution? ,(A. OJ (B) 0.5 J (C) 1.0 J (D) 211 J (E) 511 J If a p~'ticle moves i~,such a way that its ~osition.x is descnbed as a function oftnne t by x = r12, th ...
work, energy and power
... •When an object is lifted in the earth’s gravitational field, the work is done against the force of gravity. •When an object is moved across a rough surface, the work is done against the force of ...
... •When an object is lifted in the earth’s gravitational field, the work is done against the force of gravity. •When an object is moved across a rough surface, the work is done against the force of ...
