Internal Energy Problems In Physics -Multiple Choice Questions Quiz

Interactive MCQs on “Internal Energy Problems In Physics”:

Solve the following 10 questions. Only one option is correct. Click on the “Submit” button when done. Click on the “embed” button to use this quiz on your website. Click on “WhatsApp” to share this quiz.

Question 1: What is internal energy in a system?

(a) The energy associated with the motion of the system as a whole
(b) The energy associated with the external forces acting on the system
(c) The total kinetic and potential energy of the system
(d) The sum of the kinetic and potential energy of the particles within the system

Question 2: What happens to the internal energy of a system when heat is added to it?

(a) The internal energy increases
(b) The internal energy decreases
(c) The internal energy remains constant
(d) It depends on the specific heat capacity of the system

Question 3: Which of the following statements about internal energy is correct?

(a) Internal energy is a form of mechanical energy.
(b) Internal energy is always equal to the total energy of the system.
(c) Internal energy is a state function and does not depend on the path taken.
(d) Internal energy is the sum of the potential energy of the particles in the system.

Question 4: In an isolated system, which of the following is true regarding the internal energy?

(a) The internal energy remains constant.
(b) The internal energy decreases.
(c) The internal energy increases.
(d) The internal energy fluctuates randomly.

Question 5: The internal energy of an ideal gas depends only on which of the following properties?

(a) Temperature
(b) Pressure
(c) Volume
(d) Number of particles

Question 6: If a gas undergoes an adiabatic process, what happens to its internal energy?

(a) The internal energy increases.
(b) The internal energy decreases.
(c) The internal energy remains constant.
(d) It depends on the specific heat capacity of the gas.

Question 7: What is the internal energy change of a system that absorbs 500 J of heat and performs 300 J of work on the surroundings?

(a) 200 J
(b) 300 J
(c) 500 J
(d) 800 J

Question 8: When a solid melts into a liquid, what happens to the internal energy of the substance?

(a) The internal energy increases.
(b) The internal energy decreases.
(c) The internal energy remains constant.
(d) The internal energy becomes zero.

Question 9: Which of the following processes involves a decrease in the internal energy of a system?

(a) Evaporation of water
(b) Compression of a gas
(c) Expansion of a gas
(d) Boiling of a liquid

Question 10: The internal energy of an ideal gas is directly proportional to which of the following?

(a) The mass of the gas
(b) The number of moles of the gas
(c) The specific heat capacity of the gas
(d) The absolute temperature of the gas