AP Physics 2: Thermodynamics Review

Front

What happens to the average speed of gas molecules when the gas is heated?

Back

The average speed of the molecules has increased.

Front

What is the work done by a gas if 300 J of energy is added and the internal energy changes from 600 J to 700 J?

Back

200 J.

Front

Which statement about an ideal gas is false?

Back

All of the molecules have the same speed.

Front

If systems 2 and 3 are both at thermal equilibrium with system 1, what can be said about systems 2 and 3?

Back

Systems 2 and 3 are in thermal equilibrium with each other.

Front

What type of process is represented by a vertical line on a PV diagram?

Back

Isochoric process.

Front

Define thermal equilibrium.

Back

Thermal equilibrium is the state in which two systems in contact with each other do not exchange heat, meaning they are at the same temperature.

Front

What is the first law of thermodynamics?

Back

The first law of thermodynamics states that energy cannot be created or destroyed, only transformed from one form to another.

Front

What is an adiabatic process?

Back

An adiabatic process is one in which no heat is exchanged with the surroundings.

Front

What is the relationship between temperature and kinetic energy in gases?

Back

The temperature of a gas is proportional to the average translational kinetic energy of its molecules.

Front

What is an isothermal process?

Back

An isothermal process is one that occurs at a constant temperature.