Heat, Work and Energy

A cup and a drop of boiling water have the same ______________ of 100º Celsius. (It is the measure of the hotness and coldness of a body.)

The ocean and a cup of seawater may have the same temperature but different ______________ energy. (It is the energy associated with the random motion of all molecules in a substance.)

When two objects having different temperatures are placed in contact with one another, ______________ flows from the hot object to the cold object. (It is the energy in transit from a body of higher temperature to a body of lower temperature.)

Matter does not contain heat; rather it contains ______________ energy. (It is the total of the potential and kinetic energies of the molecules of a substance.)

As the water boils, the lid of the pot brings to move up. We say the air inside has done ______________ on the lid as it pushes the lid upward. (It is the product of the force on an object and the distance through which the object is moved.)

A system does no work even when heat is added to it. Which of the following may happen to the system?

Which of the following is TRUE about thermodynamics?

The heat added to a system is used to increase the system’s _____________.

The first law of thermodynamics is a restatement of what conservation principle?

If 5 J of energy is added to a system that does no external work, by how much will the internal energy of that system be raised?