The kinetic energy of a moving object is equal to the work required to bring it to its speed from rest, or the work the object can do while being brought to rest.

The kinetic energy of a moving object is equal to the work necessary to bring it to its speed from rest

If an object is moving, then it is able of doing work. It has energy of motion, or also known as kinetic energy (KE). The kinetic energy of a thing hinge on the heaviness of the object along with its speed.

luster is not a good characteristic to use by itself because luster is the property of minerals that indicates how much the surface of a mineral reflects light. the luster of a mineral is affected by the brilliance of the light used to observe the mineral surface.

the only real purpose of sputnik 1 was to beat the us into space. we were getting close to launching a useful satellite, explorer 1 - which launched on january 31, 1958. the ussr had to beat that, so they launched sputnik 1 on october 4, 19