Fall Semester Review
... You need to know why conservation of Momentum problems only happen in closed, isolated systems. Know the difference between Internal and external forces and how they affect your collision problems. You need to be able to make and interpret diagrams of collisions and write equations to match them. ...
... You need to know why conservation of Momentum problems only happen in closed, isolated systems. Know the difference between Internal and external forces and how they affect your collision problems. You need to be able to make and interpret diagrams of collisions and write equations to match them. ...
Laws_of_Energy_S12 - San Jose State University
... Block A, a 10kg block of aluminum is suspended 2 meters directly above an identical block, Block B. These two blocks are both in a thermally insulated enclosure in which air is completely evacuated. If the temperature of both blocks is initially 25 C, what is the temperature of the blocks after the ...
... Block A, a 10kg block of aluminum is suspended 2 meters directly above an identical block, Block B. These two blocks are both in a thermally insulated enclosure in which air is completely evacuated. If the temperature of both blocks is initially 25 C, what is the temperature of the blocks after the ...
Energy Forms
... What is Energy? Energy is the ability to do work It allows us to change or move matter We have learned to utilize energy to make life more comfortable and efficient Energy occurs in many forms ...
... What is Energy? Energy is the ability to do work It allows us to change or move matter We have learned to utilize energy to make life more comfortable and efficient Energy occurs in many forms ...
ENERGY UNIT Answer Key
... 16. An apple hanging on a branch of a tree has what two types of energy? Chemical energy in the sugars stored within it and mechanical potential energy due to its position 17. The metal handle of a spoon in a bowl of soup becomes warm due to heat transfer by the process of _conduction_. How is the h ...
... 16. An apple hanging on a branch of a tree has what two types of energy? Chemical energy in the sugars stored within it and mechanical potential energy due to its position 17. The metal handle of a spoon in a bowl of soup becomes warm due to heat transfer by the process of _conduction_. How is the h ...
Forms of Energy
... Energy – the capacity to do work. Energy Consumed = Work Done Energy Stored = Work Done Change in Object’s Energy = Work Done ΔEm = Work = Fd ΔEk = Work = Fd ΔEp = Work = Fd Forms of Energy Mechanical Energy (Em) is the sum of the potential and kinetic energy an object has. Em = Ep + Ek = mgh + ½mv ...
... Energy – the capacity to do work. Energy Consumed = Work Done Energy Stored = Work Done Change in Object’s Energy = Work Done ΔEm = Work = Fd ΔEk = Work = Fd ΔEp = Work = Fd Forms of Energy Mechanical Energy (Em) is the sum of the potential and kinetic energy an object has. Em = Ep + Ek = mgh + ½mv ...
PE s – Elastic or spring potential energy
... In all of the activities you did before, the work was done on the system by an external force. This caused different types of changes in the system’s ability to do something (for example, to smash chalk); in other words, the system’s energy. Below, we describe several types of changes. Invent a name ...
... In all of the activities you did before, the work was done on the system by an external force. This caused different types of changes in the system’s ability to do something (for example, to smash chalk); in other words, the system’s energy. Below, we describe several types of changes. Invent a name ...
Energy Sources and Properties Notes
... -When objects are set in motion or are in a position where they can be set in motion, they have mechanical energy. Mechanical Potential Energy (MPE): -Potential energy is stored energy. -Related to the position of an object. -A stretched rubber band has elastic potential energy. -Water behind a dam ...
... -When objects are set in motion or are in a position where they can be set in motion, they have mechanical energy. Mechanical Potential Energy (MPE): -Potential energy is stored energy. -Related to the position of an object. -A stretched rubber band has elastic potential energy. -Water behind a dam ...
Food For Thought – Energy
... • Capacity to perform work • Kinetic energy = motion • Potential energy = stored energy ...
... • Capacity to perform work • Kinetic energy = motion • Potential energy = stored energy ...
Types of Energy and Transformations
... Kinetic Energy is energy of motion– of waves, electrons, atoms, molecules, substances and objects Potential Energy is stored energy and the energy of position– gravitational energy. There are several forms of potential energy ...
... Kinetic Energy is energy of motion– of waves, electrons, atoms, molecules, substances and objects Potential Energy is stored energy and the energy of position– gravitational energy. There are several forms of potential energy ...
Work = force x distance, or: W = f x d work Power = time , or: W P = t
... • Energy can be present in a system when nothing is happening, but it can only be observed when it is transferred from one system to another. • The amount of energy being transferred can be measured, and because energy is the ability to work, energy and work are expressed in the same unit—joules. 2. ...
... • Energy can be present in a system when nothing is happening, but it can only be observed when it is transferred from one system to another. • The amount of energy being transferred can be measured, and because energy is the ability to work, energy and work are expressed in the same unit—joules. 2. ...
Tracing Energy Conversions
... – Energy can be converted from potential to kinetic and back again – All energy on earth can be traced back to the sun ...
... – Energy can be converted from potential to kinetic and back again – All energy on earth can be traced back to the sun ...
Chapter 3 Problem Set
... Before we can solve for power we have to convert the time (25 min) into seconds: t = 25 min X 60 sec/min = 1,500 sec Now solving for the power: P = W/t = 253,820 J/1500 sec = 169 w (watts) 24. A boy throws a 4-kg pumpkin at 8 m/sec to a 40-kg girl on roller skates, who catches it. At what speed does ...
... Before we can solve for power we have to convert the time (25 min) into seconds: t = 25 min X 60 sec/min = 1,500 sec Now solving for the power: P = W/t = 253,820 J/1500 sec = 169 w (watts) 24. A boy throws a 4-kg pumpkin at 8 m/sec to a 40-kg girl on roller skates, who catches it. At what speed does ...
Heat and Thermodynamics
... Air is a good insulator because it is not very dense and conduction is not very efficient at transferring energy because the molecules are much farther apart than they are in solids or liquids. ...
... Air is a good insulator because it is not very dense and conduction is not very efficient at transferring energy because the molecules are much farther apart than they are in solids or liquids. ...
Elastic Potential Energy
... values of some quantity of the system. The quantity is called potential energy of the system. Through the work, energy is transferred into the system in a form different from kinetic energy. The transferred energy is stored in the system. The quantity Ug=mgy is called the gravitational potential ene ...
... values of some quantity of the system. The quantity is called potential energy of the system. Through the work, energy is transferred into the system in a form different from kinetic energy. The transferred energy is stored in the system. The quantity Ug=mgy is called the gravitational potential ene ...
a 2 - BYU Physics and Astronomy
... an isolated system remains at constant velocity or at rest Second Law: Forces and motion In an inertial frame the acceleration of a system is equal to the sum of all external forces divided by the system mass ...
... an isolated system remains at constant velocity or at rest Second Law: Forces and motion In an inertial frame the acceleration of a system is equal to the sum of all external forces divided by the system mass ...
