
CHAPTER 6 - Thermochemistry
... q- heat energy absorbed (q is positive) or given off (q is negative) by the system. w- work done by the system(w is negative) on its surroundings or done on the system(w is positive) by its surroundings. Ex. A piston full of gases absorbs 70 kJ of heat, causing the gases in the piston to expand and ...
... q- heat energy absorbed (q is positive) or given off (q is negative) by the system. w- work done by the system(w is negative) on its surroundings or done on the system(w is positive) by its surroundings. Ex. A piston full of gases absorbs 70 kJ of heat, causing the gases in the piston to expand and ...
2011 Review Chapter 7 and 8
... Apply conservation of energy to systems of objects (Atwood’s machine), springs, and non constant one dimensional force. (opening activity) <31,59> Know when to use Hooke’s law to find the spring constant of a spring versus when to use conservation of energy to Calculate the amplitude or lowest point ...
... Apply conservation of energy to systems of objects (Atwood’s machine), springs, and non constant one dimensional force. (opening activity) <31,59> Know when to use Hooke’s law to find the spring constant of a spring versus when to use conservation of energy to Calculate the amplitude or lowest point ...
J S U
... 7. Write an expression for the work done when a force is acting on an object in the direction of its displacement . Define 1 J of work 8. What is the work to be done to increase the velocity of a car from 30 km/ h to 60 km/ h if the mass of the car is 1500 kg? 9. Define and find expression for kinet ...
... 7. Write an expression for the work done when a force is acting on an object in the direction of its displacement . Define 1 J of work 8. What is the work to be done to increase the velocity of a car from 30 km/ h to 60 km/ h if the mass of the car is 1500 kg? 9. Define and find expression for kinet ...
Work, Energy & Power
... the direction!!!! IT simply means that the force and displacement oppose each other. The ANGLE between the force and displacement in this case is 180 degrees. What happens when you put this in for the COSINE? When the FORCE and DISPLACEMENT are PERPENDICULAR, you get NO WORK!!! The ANGLE between the ...
... the direction!!!! IT simply means that the force and displacement oppose each other. The ANGLE between the force and displacement in this case is 180 degrees. What happens when you put this in for the COSINE? When the FORCE and DISPLACEMENT are PERPENDICULAR, you get NO WORK!!! The ANGLE between the ...
O Level Physics Formula
... Newton’s First Law At equilibrium, the body continues to stay in its state of rest or of ∑F=0 uniform speed as long as no net force and no net torque is acting on the body. Newton’s Second Law F= ma ...
... Newton’s First Law At equilibrium, the body continues to stay in its state of rest or of ∑F=0 uniform speed as long as no net force and no net torque is acting on the body. Newton’s Second Law F= ma ...
Energy And Temperature Introduction
... Conservation of Energy – energy is converted from one form to another but is not created nor destroyed Two general types of energy: Potential Energy – associated with position (ex. energy stored in chemical bonds) Kinetic Energy – associated with motion (ex. heat from burning, combustion) Specific t ...
... Conservation of Energy – energy is converted from one form to another but is not created nor destroyed Two general types of energy: Potential Energy – associated with position (ex. energy stored in chemical bonds) Kinetic Energy – associated with motion (ex. heat from burning, combustion) Specific t ...
Laws/Definitions/Formulae
... a quantity with magnitude only. Vector : a quantity with magnitude and direction. Equations of linear motion : v = u + at. s = ut + ½at2. v2 = u2 + 2as. Newton 1 : a body stay at rest or in uniform motion unless a resultant external force acts upon it. Newton 2 : if a body is acted on by a resultant ...
... a quantity with magnitude only. Vector : a quantity with magnitude and direction. Equations of linear motion : v = u + at. s = ut + ½at2. v2 = u2 + 2as. Newton 1 : a body stay at rest or in uniform motion unless a resultant external force acts upon it. Newton 2 : if a body is acted on by a resultant ...
Energy
... Change in State Function Change is always (final value – initial value) The intermediate values are not described Ex: for temperature ∆ T = Tfinal – T initial Units of Energy Joule = Newton • meter calorie = heat required to increase the temp of 1 gram of water by 1 degree C 1 calorie = 4.184 ...
... Change in State Function Change is always (final value – initial value) The intermediate values are not described Ex: for temperature ∆ T = Tfinal – T initial Units of Energy Joule = Newton • meter calorie = heat required to increase the temp of 1 gram of water by 1 degree C 1 calorie = 4.184 ...
Work, Energy, Power Objectives 1. Students should understand the
... Work, Energy, Power Objectives 1. Students should understand the definition of work, including when it is positive, negative, or zero, so they can: • Calculate the work done by a specified constant force on an object that undergoes a specified displacement. • Relate the work done by a force to the a ...
... Work, Energy, Power Objectives 1. Students should understand the definition of work, including when it is positive, negative, or zero, so they can: • Calculate the work done by a specified constant force on an object that undergoes a specified displacement. • Relate the work done by a force to the a ...
Physics 20 Energy – Conservation of Energy
... Use the Work - Energy theorem when work is done on a system to either increase (+W) or decrease (-W) the total energy in the system. The work energy theorem states that the work done by the net force on an object is equal to the change in the object’s energy ...
... Use the Work - Energy theorem when work is done on a system to either increase (+W) or decrease (-W) the total energy in the system. The work energy theorem states that the work done by the net force on an object is equal to the change in the object’s energy ...
AP Physics C IC
... The force is the negative slope of the curve Emec = U(x) + K(x) Turning points: locations where the object is at rest; i.e. K(x) = 0 and Emec = U(x) • Object is in equilibrium (neutral, unstable, stable) when slope = 0 (F(x) = 0) • Object cannot reach locations where K is negative • To graph: graph ...
... The force is the negative slope of the curve Emec = U(x) + K(x) Turning points: locations where the object is at rest; i.e. K(x) = 0 and Emec = U(x) • Object is in equilibrium (neutral, unstable, stable) when slope = 0 (F(x) = 0) • Object cannot reach locations where K is negative • To graph: graph ...
AP Physics Chapter 5-8 Key Equations and Ideas Forces (pulleys
... For a block on a spring, the work is positive if the block ends up closer to the relaxed position (x = 0) than it was initially. It is negative if the block ends up farther away from x = 0. It is zero if the block ends up in the same initial position. ...
... For a block on a spring, the work is positive if the block ends up closer to the relaxed position (x = 0) than it was initially. It is negative if the block ends up farther away from x = 0. It is zero if the block ends up in the same initial position. ...
Today: Work, Kinetic Energy, Work-Energy Theorem for 1D motion
... A horizontal force of +100 N is applied in the x direction to a 20-kg object initially moving at -10 m/s in the x-direction. The object finally reaches a velocity of zero, reverses direction, and reaches +10 m/s finally. Friction force is negligible. Assuming the 100 N force is the only force, What ...
... A horizontal force of +100 N is applied in the x direction to a 20-kg object initially moving at -10 m/s in the x-direction. The object finally reaches a velocity of zero, reverses direction, and reaches +10 m/s finally. Friction force is negligible. Assuming the 100 N force is the only force, What ...
7 Potential Energy
... W=(Fcos)x: what if Fcos not constant while covering x? Example: what if changes while dragging the suitcase? Area=A=(Fcos)x ...
... W=(Fcos)x: what if Fcos not constant while covering x? Example: what if changes while dragging the suitcase? Area=A=(Fcos)x ...
CHAPTER 6 Thermodynamics
... It is also known as the law of conservation of energy: “the total energy of the Universe is constant” or sometimes expressed as "Energy can neither be created nor destroyed". Another approach is to say that the total energy of an isolated system remains constant. ...
... It is also known as the law of conservation of energy: “the total energy of the Universe is constant” or sometimes expressed as "Energy can neither be created nor destroyed". Another approach is to say that the total energy of an isolated system remains constant. ...
Physics Vocabulary
... • friction- a force that opposes motion when two surfaces are in contact with each other • magnetism- a force that attracts or repels objects with magnetic poles • gravity- a force that pulls together objects with mass • balanced forces- forces that are equal in size and opposite in direction which ...
... • friction- a force that opposes motion when two surfaces are in contact with each other • magnetism- a force that attracts or repels objects with magnetic poles • gravity- a force that pulls together objects with mass • balanced forces- forces that are equal in size and opposite in direction which ...
PPT - CEProfs
... law of conservation of energy--deals with quantities of energy •Energy can change forms: from potential energy to kinetic energy, for example--but the total amount never changes. ...
... law of conservation of energy--deals with quantities of energy •Energy can change forms: from potential energy to kinetic energy, for example--but the total amount never changes. ...