Work & Energy
... – If Internal Energy is ignored: ME = KE + PE • PE could be a combination of gravitational and elastic potential energy, or any other form of potential energy. ...
... – If Internal Energy is ignored: ME = KE + PE • PE could be a combination of gravitational and elastic potential energy, or any other form of potential energy. ...
Notes for lecture 7
... where h is the height of the particle above some fixed level. The PE is only defined up to an additive constant, because if the fixed level is chosen a distance h0 lower the PE will increase by mgh0 . 2 A more old-fashioned unit of power is the horsepower. There are various different definitions. The uni ...
... where h is the height of the particle above some fixed level. The PE is only defined up to an additive constant, because if the fixed level is chosen a distance h0 lower the PE will increase by mgh0 . 2 A more old-fashioned unit of power is the horsepower. There are various different definitions. The uni ...
Chapter4.Presentation.ICAM.Work,Power_and_Energy
... • A stretched elastic band • An object at some height above the ground ...
... • A stretched elastic band • An object at some height above the ground ...
Practice Problems with Solutions
... and incline. (c) Why can’t you use the block alone as your system? 10. Sol’n (a) For the system of block, spring, Earth and incline, all forces are internal (isolated system), but energy is dissipated by friction (not a closed system). Thus no work is done. The energy diagram involves changes in kin ...
... and incline. (c) Why can’t you use the block alone as your system? 10. Sol’n (a) For the system of block, spring, Earth and incline, all forces are internal (isolated system), but energy is dissipated by friction (not a closed system). Thus no work is done. The energy diagram involves changes in kin ...
Thermal energy
... however, you heat something when thermal energy transfers from one object to another. • The rate at which heating occurs depends on the difference in temperatures between the objects. ...
... however, you heat something when thermal energy transfers from one object to another. • The rate at which heating occurs depends on the difference in temperatures between the objects. ...
Slide 1 - Mr Lundys Room
... • A stretched elastic band • An object at some height above the ground ...
... • A stretched elastic band • An object at some height above the ground ...
1418323716.
... earth falls on the moon B) sun falls on the moon C) moon falls on the sun D) moon falls on the earth 9. A stone of 1kg rests at a point 10m high. If its released from its position of rest, its kinetic energy just before landing will be; A) 100J B) 10J C) 0.1J D) 1000J 10. Determine the force that is ...
... earth falls on the moon B) sun falls on the moon C) moon falls on the sun D) moon falls on the earth 9. A stone of 1kg rests at a point 10m high. If its released from its position of rest, its kinetic energy just before landing will be; A) 100J B) 10J C) 0.1J D) 1000J 10. Determine the force that is ...
Here - science
... Show that the kinetic energy associated with his vertical velocity is equal to the gravitational potential energy at the top of his jump. (ecf from b) ½ m v2 = 0.5 x 75 x 6.12 = 1395 ≈ 1400 J QED ...
... Show that the kinetic energy associated with his vertical velocity is equal to the gravitational potential energy at the top of his jump. (ecf from b) ½ m v2 = 0.5 x 75 x 6.12 = 1395 ≈ 1400 J QED ...
Force and Motion Unit Test
... b. watt. d. newton-meter. 11. The basic SI unit of length is the a. inch. c. meter. b. foot. d. mile. 12. Based on your knowledge of energy conservation, which of the following statements is true? a. Manufacturers can increase a light bulb’s energy efficiency by using technology that increases the a ...
... b. watt. d. newton-meter. 11. The basic SI unit of length is the a. inch. c. meter. b. foot. d. mile. 12. Based on your knowledge of energy conservation, which of the following statements is true? a. Manufacturers can increase a light bulb’s energy efficiency by using technology that increases the a ...
FORCES AND MOTION UNIT TEST Multiple Choice
... b. watt. d. newton-meter. 11. The basic SI unit of length is the a. inch. c. meter. b. foot. d. mile. 12. Based on your knowledge of energy conservation, which of the following statements is true? a. Manufacturers can increase a light bulb’s energy efficiency by using technology that increases the a ...
... b. watt. d. newton-meter. 11. The basic SI unit of length is the a. inch. c. meter. b. foot. d. mile. 12. Based on your knowledge of energy conservation, which of the following statements is true? a. Manufacturers can increase a light bulb’s energy efficiency by using technology that increases the a ...
Work, Energy, Power, and Machines
... • The unit for power is Joule / seconds which is also called a Watt, W (just like the rating for light bulbs) In the US, we usually measure power ...
... • The unit for power is Joule / seconds which is also called a Watt, W (just like the rating for light bulbs) In the US, we usually measure power ...
05_Work and Energy
... We observe that, once all forms of energy are accounted for, the total energy of an isolated system does not change. This is the law of conservation of energy: The total energy of an isolated system is always conserved. We define a conservative force: A force is said to be conservative if the work d ...
... We observe that, once all forms of energy are accounted for, the total energy of an isolated system does not change. This is the law of conservation of energy: The total energy of an isolated system is always conserved. We define a conservative force: A force is said to be conservative if the work d ...
Chapter 6
... Conservation of Energy (chapter 6) The total energy must be conserved for a volume element x y z during a time period t. Energy may take on several forms which are generally associated with mechanical and thermal terms such as internal energy (due to deformation; pressure, temperature or volum ...
... Conservation of Energy (chapter 6) The total energy must be conserved for a volume element x y z during a time period t. Energy may take on several forms which are generally associated with mechanical and thermal terms such as internal energy (due to deformation; pressure, temperature or volum ...
Lab #5: The Work – Kinetic Energy Theorem
... describe. One of the reasons for this is the fact that there are many different forms of energy: kinetic, gravitational potential, elastic potential, electric potential, thermal, chemical, etc. Work, on the other hand, often seems difficult for people to understand, even though it is simple to defin ...
... describe. One of the reasons for this is the fact that there are many different forms of energy: kinetic, gravitational potential, elastic potential, electric potential, thermal, chemical, etc. Work, on the other hand, often seems difficult for people to understand, even though it is simple to defin ...
Kinetic energy - KCPE-KCSE
... All of the above forms of energy (and others) can ultimately be considered to be variations of kinetic or potential energy. ...
... All of the above forms of energy (and others) can ultimately be considered to be variations of kinetic or potential energy. ...
Appendix I
... force there is an associated work and an associated energy. The stretching of a spring requires a force and performs work (active energy); that work is stored as energy in the spring for later use (passive energy). Forces (F) are vector properties; they have magnitude and direction (e.g., weight and ...
... force there is an associated work and an associated energy. The stretching of a spring requires a force and performs work (active energy); that work is stored as energy in the spring for later use (passive energy). Forces (F) are vector properties; they have magnitude and direction (e.g., weight and ...
Chapter Test A
... a. Holding a heavy box requires a lot of work. b. A scientist works on an experiment in the laboratory. c. Sam and Rachel pushed hard, but they could do no work on the car. d. John learned that shoveling snow is hard work. _____ 2. In which of the following sentences is work used in the everyday sen ...
... a. Holding a heavy box requires a lot of work. b. A scientist works on an experiment in the laboratory. c. Sam and Rachel pushed hard, but they could do no work on the car. d. John learned that shoveling snow is hard work. _____ 2. In which of the following sentences is work used in the everyday sen ...
