How are conditions, convictions, and radiation different

When two objects are in direct contact with each other, there will be an exchange of heat from the hotter object to the colder one, which is because of conduction. Further, the objects which allow heat to movement effortlessly through them are called conductors.  

Convection infers the type of heat exchange, by genuine movement of matter, that happens just in fluids. Fluids suggests any substance, whose particles move uninhibitedly starting with one place then onto the next, for example, liquid and gases.  

The heat transfer system in which no medium is required is called radiation. It alludes to the movement of heat in waves, as it needn't bother with atoms to movement through. The object requires not be in direct contact with each other to transmit heat. At whatever point you feel heat without touching the object, it is a direct result of radiation.

note: the given question is incomplete.

complete question is given below.

which is an example of kinetic energy?

a. the energy stored in ethanol  

b. a hockey puck sliding across the ice  

c. a compressed spring  

d. a ball sitting at the top of a ramp

solution: the kinetic energy is the energy posses by the virtue of the motion of the object.

in the given options, a, c and d are the example of potential energy because it is the energy posses by the virtue of the rest of the object. but option b has the kinetic energy as the object is in motion.

hence, a hockey puck sliding across the ice   is the apex example of kinetic energy.

so, the option (b) a hockey puck sliding across the ice   is the correct option.