Energy Transformations- Homework
... energy from one form to another. An energy transformation is a change of one type of energy into another type of energy. For example, the energy in your body comes from the food you eat. Your body transforms chemical energy from food into another kind of chemical energy—a molecule called ATP. Your b ...
... energy from one form to another. An energy transformation is a change of one type of energy into another type of energy. For example, the energy in your body comes from the food you eat. Your body transforms chemical energy from food into another kind of chemical energy—a molecule called ATP. Your b ...
Slide 1
... A stuntman is attached to a bungee cord with an unstretched length of 15.0 m. He jumps off a bridge spanning a river from a height of 50.0 m. When he finally stops, the cord has a stretched length of 44.0 m. Assuming the spring constant of the bungee cord is 71.8 N/m, what is the elastic potential ...
... A stuntman is attached to a bungee cord with an unstretched length of 15.0 m. He jumps off a bridge spanning a river from a height of 50.0 m. When he finally stops, the cord has a stretched length of 44.0 m. Assuming the spring constant of the bungee cord is 71.8 N/m, what is the elastic potential ...
Work done by electric force (source: fixed charges) on a test charge
... Work done by electric force (source: fixed charges) on a test charge depends only on endpoints, not on path. (You can see this easily for a single fixed charge… it holds in general because of superposition.) Electric forces are “conservative” - We can define a potential energy. When a + charge moves ...
... Work done by electric force (source: fixed charges) on a test charge depends only on endpoints, not on path. (You can see this easily for a single fixed charge… it holds in general because of superposition.) Electric forces are “conservative” - We can define a potential energy. When a + charge moves ...
Study Guide
... 4. In which substance (solids, liquids, gases) do particles move the slowest? ____________ 5. In which substance (solids, liquids, gases) do particles move the fastest? ____________ 6. As a substance is cooled the molecules/particles move (faster/slower)? _____________ 7. By increasing the _________ ...
... 4. In which substance (solids, liquids, gases) do particles move the slowest? ____________ 5. In which substance (solids, liquids, gases) do particles move the fastest? ____________ 6. As a substance is cooled the molecules/particles move (faster/slower)? _____________ 7. By increasing the _________ ...
Relationships Between Heat and Work
... • As long as a substance does not change phase, its internal energy will increase as long as its temperature increases • Work can transfer energy to a substance – Results in an increase in internal energy • Can be transferred to another substance as heat ...
... • As long as a substance does not change phase, its internal energy will increase as long as its temperature increases • Work can transfer energy to a substance – Results in an increase in internal energy • Can be transferred to another substance as heat ...
Holt Physics—Chapter 5: Work and Energy
... III. Section 5-3: Conservation of Energy A. The First Law of Thermodynamics is that “In any process, the total energy of the universe remains constant.”—Wikipedia This means that energy can never be created or destroyed only converted into mass and back again. (E = mc2) B. Mechanical Energy (kineti ...
... III. Section 5-3: Conservation of Energy A. The First Law of Thermodynamics is that “In any process, the total energy of the universe remains constant.”—Wikipedia This means that energy can never be created or destroyed only converted into mass and back again. (E = mc2) B. Mechanical Energy (kineti ...
Energy Study Guide Key
... a. Wind: uneven heating of the earth’s surface by the sun; used to make electricity and thought to be always available b. Hydroelectric power (water): created on rivers; uses renewable natural resources; generates electrical energy c. Solar: energy from the sun; used to heat homes; does not convert ...
... a. Wind: uneven heating of the earth’s surface by the sun; used to make electricity and thought to be always available b. Hydroelectric power (water): created on rivers; uses renewable natural resources; generates electrical energy c. Solar: energy from the sun; used to heat homes; does not convert ...
Potential and Kinetic energy
... B. Potential energy (PE) – 1. There are two types of potential energy a. _____________________________ – energy of position - Examples b. _____________________________ – stored energy - Examples 2. Energy that is waiting to be released C. __________________(KE) – energy of… Energy of motion 1. ...
... B. Potential energy (PE) – 1. There are two types of potential energy a. _____________________________ – energy of position - Examples b. _____________________________ – stored energy - Examples 2. Energy that is waiting to be released C. __________________(KE) – energy of… Energy of motion 1. ...
Energy - ability of an object to do work
... Energy - ability of an object to do work Potential energy – ability of an object to have energy Kinetic energy – the actual movement of an object Mechanical – when potential and kinetic energy are put to an object Electric energy – form of moving energy that has a flow of electric charges Circuit- a ...
... Energy - ability of an object to do work Potential energy – ability of an object to have energy Kinetic energy – the actual movement of an object Mechanical – when potential and kinetic energy are put to an object Electric energy – form of moving energy that has a flow of electric charges Circuit- a ...
17-2 Example Problems Involving Potential Energy
... In this case, no non-conservative forces act and, in the initial state, the kinetic energy is zero because both objects are at rest. This gives . The final kinetic energy represents the kinetic energy of the system, the sum of the kinetic energies of the two objects. Do we need to account for gravit ...
... In this case, no non-conservative forces act and, in the initial state, the kinetic energy is zero because both objects are at rest. This gives . The final kinetic energy represents the kinetic energy of the system, the sum of the kinetic energies of the two objects. Do we need to account for gravit ...
5.1 Energy Changes in Chemical and Nuclear Reactions
... • This depends on how fast its particles are moving • When a substance absorbs thermal energy, its particles move at a greater speed and it warms up ...
... • This depends on how fast its particles are moving • When a substance absorbs thermal energy, its particles move at a greater speed and it warms up ...
Conservation of energy
In physics, the law of conservation of energy states that the total energy of an isolated system remains constant—it is said to be conserved over time. Energy can be neither created nor be destroyed, but it transforms from one form to another, for instance chemical energy can be converted to kinetic energy in the explosion of a stick of dynamite.A consequence of the law of conservation of energy is that a perpetual motion machine of the first kind cannot exist. That is to say, no system without an external energy supply can deliver an unlimited amount of energy to its surroundings.