10.1 The Basic Energy Model
... moves at a constant speed, there must be a rolling friction force (not shown) acting to the left. solve We can use Equation 10.6 , with force F = T, to find that the tension does work: W = Td cos θ = (20 N)(100 m)cos 45° = 1400 J The tension is needed to do work on the suitcase even though the su ...
... moves at a constant speed, there must be a rolling friction force (not shown) acting to the left. solve We can use Equation 10.6 , with force F = T, to find that the tension does work: W = Td cos θ = (20 N)(100 m)cos 45° = 1400 J The tension is needed to do work on the suitcase even though the su ...
Energy and Transformation of Energy
... Heat Energy Transfer • This type of energy can be transferred from one object to another when there is a temperature difference between them. • Movement of this energy moves from hot to cold. • The reason a hot chocolate mug feels warm to your hand is because the heat is moving from the hot mug to ...
... Heat Energy Transfer • This type of energy can be transferred from one object to another when there is a temperature difference between them. • Movement of this energy moves from hot to cold. • The reason a hot chocolate mug feels warm to your hand is because the heat is moving from the hot mug to ...
lec38 - UConn Physics
... associated with its microscopic components These components are its atoms and molecules The system is viewed from a reference frame at rest with respect to the center of mass of the system ...
... associated with its microscopic components These components are its atoms and molecules The system is viewed from a reference frame at rest with respect to the center of mass of the system ...
Matter and Energy
... Physical changes occur when matter changes its property but not its chemical nature. Physical property changes are any change in size, shape or state of a substance. Sugar can undergo many physical changes. Even though each form is different, ...
... Physical changes occur when matter changes its property but not its chemical nature. Physical property changes are any change in size, shape or state of a substance. Sugar can undergo many physical changes. Even though each form is different, ...
P1 revision fact sheet
... - conduction – vibrating particles pass on their energy to the particles next to them. The main form of heat transfer in solids - convection – particles with the most energy move from the hotter place to the cooler place and take their heat energy with them. The main form of heat transfer in liquids ...
... - conduction – vibrating particles pass on their energy to the particles next to them. The main form of heat transfer in solids - convection – particles with the most energy move from the hotter place to the cooler place and take their heat energy with them. The main form of heat transfer in liquids ...
Lecture 4
... R to calculate the total entropy (e.g. integrate up the measured specific heat from zero temperature S = C(T )/T dT for each system and add). If the two blocks are placed into contact, heat will flow between them until the temperature is equal, and you can again calculate the entropy. The second law ...
... R to calculate the total entropy (e.g. integrate up the measured specific heat from zero temperature S = C(T )/T dT for each system and add). If the two blocks are placed into contact, heat will flow between them until the temperature is equal, and you can again calculate the entropy. The second law ...
PF1.5: WORK, ENERGY AND POWER
... The reason: W = F cosθ × d = F cos 90 × d = 0, where θ (90°) is the angle between the force and the displacement through which the force acts. The implication of this is that if the force acts at an angle to the direction of motion of an object, then the force is less effective compared with if the ...
... The reason: W = F cosθ × d = F cos 90 × d = 0, where θ (90°) is the angle between the force and the displacement through which the force acts. The implication of this is that if the force acts at an angle to the direction of motion of an object, then the force is less effective compared with if the ...
Freezing Point of Water
... 1. The freezing point of water is 0 °C and the boiling point is 100 °C. 2. The freezing point of water is 32 °F and the boiling point is 212 °F. 3. Temperature is the measurement of the average kinetic energy of a substance. 4. Energy is the ability to do work. Joule is the unit in which this is mea ...
... 1. The freezing point of water is 0 °C and the boiling point is 100 °C. 2. The freezing point of water is 32 °F and the boiling point is 212 °F. 3. Temperature is the measurement of the average kinetic energy of a substance. 4. Energy is the ability to do work. Joule is the unit in which this is mea ...
Ch6Lecture2
... F 4) Work to get this started, after that W = 0 a) Input E into the system b) ET = KE + PE = constant c) Sides: Initial Work gives us PE d) Bottom: Gravity moves bob down (KE) e) F = tension = centripetal force; perpendicular to motion, W = Fd = 0 f) Friction (air resistance) does small work, eventu ...
... F 4) Work to get this started, after that W = 0 a) Input E into the system b) ET = KE + PE = constant c) Sides: Initial Work gives us PE d) Bottom: Gravity moves bob down (KE) e) F = tension = centripetal force; perpendicular to motion, W = Fd = 0 f) Friction (air resistance) does small work, eventu ...
Cell Energy
... Diver: gravitational (PE) to motion (KE) People: chemical (PE) into thermal, sound & motion (KEs) Sun: nuclear (PE) into thermal & radiant (KEs) ...
... Diver: gravitational (PE) to motion (KE) People: chemical (PE) into thermal, sound & motion (KEs) Sun: nuclear (PE) into thermal & radiant (KEs) ...
Chapter 6
... The principal point to make here is that (6.1.4) defines the internal energy as the term needed to balance the energy budget. What thermodynamic theory shows is that e is a state variable defined by pressure and temperature, for example, and independent of the process that has led to the state desc ...
... The principal point to make here is that (6.1.4) defines the internal energy as the term needed to balance the energy budget. What thermodynamic theory shows is that e is a state variable defined by pressure and temperature, for example, and independent of the process that has led to the state desc ...
chapter 2 - UniMAP Portal
... Initially, the internal energy of the fluid is 800 kJ. During the cooling process, the fluid loses 500 kJ of heat, and the paddle wheel does 100 kJ of work on the fluid. Determine the final internal energy of the fluid. Neglect the energy stored in the paddle wheel. ...
... Initially, the internal energy of the fluid is 800 kJ. During the cooling process, the fluid loses 500 kJ of heat, and the paddle wheel does 100 kJ of work on the fluid. Determine the final internal energy of the fluid. Neglect the energy stored in the paddle wheel. ...
Chapter 9 Study Guide
... If you do work on an object so that the shape changes, you can give it potential energy. For instance, when you pull back the string of a bow, you do work on it to change its shape. The energy you used is transferred to the bow, stored there, and then used to give energy to the arrow. ...
... If you do work on an object so that the shape changes, you can give it potential energy. For instance, when you pull back the string of a bow, you do work on it to change its shape. The energy you used is transferred to the bow, stored there, and then used to give energy to the arrow. ...
Conservative Forces and Potential Energy
... initial and final positions of the object and is independent of the path taken between those positions. Gravity is one such conservative force. Near Earth’s surface, the work done by gravity on an object of mass m depends only on the change in the object’s height h. In the case of conservative force ...
... initial and final positions of the object and is independent of the path taken between those positions. Gravity is one such conservative force. Near Earth’s surface, the work done by gravity on an object of mass m depends only on the change in the object’s height h. In the case of conservative force ...
ENVSCI11_C17_WS_02
... 8. A vehicle must have energy to run; however, not all the energy the vehicle is supplied is used to perform the intended work. What happens to some of the energy that is not converted to motion? ...
... 8. A vehicle must have energy to run; however, not all the energy the vehicle is supplied is used to perform the intended work. What happens to some of the energy that is not converted to motion? ...
