What is heat? Heat is the energy needed to change the temperature of 1 g of a substance by 1°C.
O Heat is the average kinetic energy of the particles of a substance.
Heat is the total energy of a substance due to the movement of its particles.
Heat is the energy that flows between two substances of different temperatures.

heat is the total energy of a substance due to the movements of its particles.

question: ray weighs 100 kilograms, his wrestling partner, bobby, weighs 50 kilograms. if ray moves at 4 m s , how fast will bobby have to run at him to apply an equal amount of kinetic energy?

answer: 8 m/s he needs to run twice as fast to keep up so he has some work to do

explanation:   if the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

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(jacemorris04)