How do furnace heating systems typically work? Ignition of fuel creates a pressure change inside the furnace, causing a piston to exhaust hot air into the building.
A bimetallic strip absorbs thermal energy from the air outside of the building, causing the transfer of thermal energy from fuel to the air inside the building.
Energy in the fuel’s chemical bonds is converted to thermal energy, which is then transferred to the air inside the building.
Thermal energy from outside of the building is transferred to the inside of the building using a liquid.

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.