Energy is the indirectly observed quantity that has power to cause a change in a system. We do not observe energy directly - we only observe the effects that it has on systems as they change.
According to the first law of thermodynamics, the energy of an isolated system (one where no mass or energy are entering or leaving) must remain constant.
Energy never disappears it just forms into another type of energy
combined potential and kinetic energy (:mass and velocity
Assuming it just rolls down a slope, without the engines working: gravitational potential energy will be converted to kinetic energy. The kinetic energy will eventually be converted to heat energy.
Motion.
The energy of motion is called kinetic energy.
The two main forms of energy are Kinetic energy and Potential Energy. Kinetic energy is motion energy. Potential energy is energy stored in matter.
average kinetic energy
Kinetic energy to electrical energy
Kinetic energy is the energy possessed by an object due to its motion. It is directly proportional to the mass of the object and the square of its velocity.
Kinetic energy to electrical energy
Kinetic energy best describes the motion of the particles in a piece of steel.
combined potential and kinetic energy (:mass and velocity
The term that best describes the measure of the energy of motion of particles in matter is temperature. Temperature is a physical quantity that relates to the average kinetic energy of particles within a substance.
Thermal energy is produced when the kinetic energy of particles in a material increases due to an increase in temperature. This increase in kinetic energy causes the particles to vibrate and move faster, generating heat energy in the process.
combined potential and kinetic energy (:mass and velocity
The kinetic energy of a moving cricket bat describes the energy it possesses due to its motion. This energy is stored in the bat as it swings and strikes the cricket ball, transferring the kinetic energy to the ball upon impact.
The adjective you are looking for is "kinetic." It describes energy associated with an object in motion.
Temperature.