<Li> Cytoplasmic streaming is a way which cells move molecular substances throughout the cytoplasm . </Li> <Li> Various motor proteins work as molecular motors within a cell and move along the surface of various cellular substrates such as microtubules . Motor proteins are typically powered by the hydrolysis of adenosine triphosphate (ATP), and convert chemical energy into mechanical work . Vesicles propelled by motor proteins have been found to have a velocity of approximately 0.00000152 m / s . </Li> <Ul> <Li> According to the laws of thermodynamics, all particles of matter are in constant random motion as long as the temperature is above absolute zero . Thus the molecules and atoms which make up the human body are vibrating, colliding, and moving . This motion can be detected as temperature; higher temperatures, which represent greater kinetic energy in the particles, feel warm to humans who sense the thermal energy transferring from the object being touched to their nerves . Similarly, when lower temperature objects are touched, the senses perceive the transfer of heat away from the body as feeling cold . </Li> </Ul> <Li> According to the laws of thermodynamics, all particles of matter are in constant random motion as long as the temperature is above absolute zero . Thus the molecules and atoms which make up the human body are vibrating, colliding, and moving . This motion can be detected as temperature; higher temperatures, which represent greater kinetic energy in the particles, feel warm to humans who sense the thermal energy transferring from the object being touched to their nerves . Similarly, when lower temperature objects are touched, the senses perceive the transfer of heat away from the body as feeling cold . </Li>

When is an object considered to be motion