Joseph Priest, in Encyclopedia of Energy, 2004 4 Work–Energy Principle At some time, an object such as a car may have speed v and kinetic energy K=12mv2. Later, its speed may change to V so that its kinetic energy is 12mV2. The change in kinetic energy is the later value minus ...
In fact, all forms of energy can be generalized as either potential or kinetic.Potential energy is stored energy, that is, the amount of work that an object can do as a result of its position (and mass) relative to another object. For instance, a bowling ball that is held above the ...
StorageRoundtripEnergyEfficiencyPercentage The percentage of energy that survives the roundtrip during the energy storage charge/discharge cycle. For example: If a Solar Array generates 100 kWh of energy and the energy is stored in a battery that has an efficiency of 80%, only 80 kWh of energy...
考查名词。根据第一段第一句Potential energy is the energy, chemical or physical, stored within an object, atom or molecule(分子).“势能是储存在物体、原子或分子中的化学或物理能量。”可知,势能是以化学或物理形式存在于物体中的能量。故填form/state。
Oil shortages have brought on anenergycrisis... 石油短缺已经造成了能源危机。 柯林斯高阶英语词典 He was saving hisenergyfor next week's race in Belgium... 他正为下周在比利时的比赛养精蓄锐。 柯林斯高阶英语词典 We try to boost ourenergyby eating. ...
Noun1.potential energy- the mechanical energy that a body has by virtue of its position; stored energy P.E. elastic energy,elastic potential energy- potential energy that is stored when a body is deformed (as in a coiled spring) mechanical energy- energy in a mechanical form ...
Potential energyis present in an object that is affected by a force field. One example is water in ahydropower plant. Calculations of potential energy are made according to the following formula (2.2)E=m·g·h whereEis the energy (J);mis the mass (kg);gis the gravity acceleration (m/s2...
Forms of Energy GroupStudents in the Forms of Energy Group introduced the idea that energy can be divided into two categories: potential energy and kinetic energy. Potential energy is the energy stored in an object, while kinetic energy is the...
If developers want to allow their object to be archived, they should override this method and store their state in using the providedencoderparameter. In addition, developers should also implement a constructor that takes an NSCoder argument and is exported with [Export ("initWithCoder:")] ...
JouleJ1Joule is equal to the energy transferred to an object when a force of 1Newton acts on that object in the direction of its motion through a distance of 1m (1J=1Nm) Basic energy unit of the metric system (SI) Caloriecal1 calorie is the amount of heat required to raise the tempe...