A body has 15J of heat energy in a particular state. At the same state it has an internal energy of 30J. Assume no work is done, what will happen to the internal energy if 5J of heat is added to the system?

Heat energy = 20J, Internal energy = 35J

Heat energy = 15J, Internal energy = 30J

Heat energy = 15J, Internal energy = 35J

A body cannot have heat energy in a particular state

Which of the following types of kinetic energies contribute to internal energy?

Translational, Vibrational & Rotational

Internal energy of a system is defined as?

The sum of potential energies of the system

The sum of kinetic energies of all molecules of the system

The sum of kinetic and potential energies of all molecules of the system

The sum of potential energies of the system

The average kinetic energy of all molecules

Explore topic-wise MCQs in Physics.

This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Physics knowledge and support exam preparation. Choose a topic below to get started.

1.	A body has 15J of heat energy in a particular state. At the same state it has an internal energy of 30J. Assume no work is done, what will happen to the internal energy if 5J of heat is added to the system?
A.	Heat energy = 20J, Internal energy = 35J
B.	Heat energy = 15J, Internal energy = 30J
C.	Heat energy = 15J, Internal energy = 35J
D.	A body cannot have heat energy in a particular state
Answer» E.

Discussion

2.	Which of the following types of kinetic energies contribute to internal energy?
A.	Translational
B.	Rotational
C.	Vibrational
D.	Translational, Vibrational & Rotational
Answer» E.

Discussion

3.	If some heat is provided to a system and work is done on it, it is possible that internal energy will decrease. True or False?
A.	True
B.	False
Answer» C.

Discussion

4.	A box contains 10⁵ molecules. The average kinetic energy of each molecule is 0.5*10^-6J. With respect to an observer at rest the box, having a mass of 1kg, is moving with a velocity of 2m/s. What is the value of kinetic energy that will contribute to the internal energy?
A.	0.05J
B.	2.05J
C.	0
D.	2J
Answer» B. 2.05J

Discussion

5.	Internal energy of a system is defined as?
A.	The sum of kinetic energies of all molecules of the system
B.	The sum of kinetic and potential energies of all molecules of the system
C.	The sum of potential energies of the system
D.	The average kinetic energy of all molecules
Answer» C. The sum of potential energies of the system

Discussion

Explore topic-wise MCQs in Physics.

A body has 15J of heat energy in a particular state. At the same state it has an internal energy of 30J. Assume no work is done, what will happen to the internal energy if 5J of heat is added to the system?

Which of the following types of kinetic energies contribute to internal energy?

If some heat is provided to a system and work is done on it, it is possible that internal energy will decrease. True or False?

A box contains 105 molecules. The average kinetic energy of each molecule is 0.5*10-6J. With respect to an observer at rest the box, having a mass of 1kg, is moving with a velocity of 2m/s. What is the value of kinetic energy that will contribute to the internal energy?

Internal energy of a system is defined as?

A box contains 10⁵ molecules. The average kinetic energy of each molecule is 0.5*10^-6J. With respect to an observer at rest the box, having a mass of 1kg, is moving with a velocity of 2m/s. What is the value of kinetic energy that will contribute to the internal energy?