Between a watt, a kilowatt, and a kilowatt-hour, which is a unit of power and which is a unit of energy?

Answer : The unit of power is, a watt and a kilowatt.

The unit of energy is, kilowatt-hour.

Explanation :

A watt and a kilowatt is the unit of power. Power is defined as the work done per unit time.

Formula used :

Kilowatt-hour is the unit of energy. Energy is defined as the product of power and time.

Formula used :

Hence, the unit of power is, a watt and a kilowatt. The unit of energy is, kilowatt-hour.

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.