30 Conservation Laws Quiz Questions and Answers

Conservation laws are fundamental principles in physics that describe the behavior of certain physical quantities in isolated systems. These laws state that certain properties of a system remain constant over time, regardless of the interactions or transformations that occur within the system. The concept of conservation laws is a powerful tool in understanding the behavior of the physical world and has applications in various fields of science and engineering.

The key idea behind conservation laws is that specific quantities are neither created nor destroyed in an isolated system. Instead, they can change forms or be transferred from one part of the system to another, but the total amount remains constant. These laws are derived from the underlying symmetries of nature, which dictate the invariance of certain physical quantities under transformations.

Table of content

• Part 1: 30 Conservation Laws quiz questions & answers
• Part 2: Download Conservation Laws questions & answers for free
• Part 3: Free online quiz platform – OnlineExamMaker

Part 1: 30 Conservation Laws quiz questions & answers

1. Which law states that energy cannot be created or destroyed in an isolated system?
a) Conservation of Momentum
b) Conservation of Energy
c) Conservation of Charge
d) Conservation of Angular Momentum
Answer: b) Conservation of Energy

2. The law of conservation of momentum states that the total momentum of an isolated system:
a) Decreases over time
b) Increases over time
c) Remains constant
d) Depends on the system’s temperature
Answer: c) Remains constant

3. Which law governs the conservation of certain quantum numbers associated with particles called leptons?
a) Conservation of Angular Momentum
b) Conservation of Baryon Number
c) Conservation of Lepton Number
d) Conservation of Mass
Answer: c) Conservation of Lepton Number

4. The law of conservation of charge states that the total electric charge in an isolated system remains:
a) Neutral
b) Positive
c) Negative
d) Constant
Answer: d) Constant

5. What is the product of an object’s mass and its velocity called?
a) Force
b) Energy
c) Momentum
d) Angular Momentum
Answer: c) Momentum

6. The law of conservation of angular momentum states that the total angular momentum of an isolated system remains constant unless:
a) External torques are applied
b) The system is at rest
c) The system is in free fall
d) The system has a changing temperature
Answer: a) External torques are applied

7. Which law is a specific application of the conservation of momentum, focusing on linear motion along a particular direction?
a) Conservation of Charge
b) Conservation of Linear Momentum
c) Conservation of Energy
d) Conservation of Mass
Answer: b) Conservation of Linear Momentum

8. What is the law of conservation of mass?
a) Mass cannot be created or destroyed in an isolated system.
b) Mass can be created but not destroyed in an isolated system.
c) Mass can be destroyed but not created in an isolated system.
d) Mass can change form, but the total mass in a system is always increasing.
Answer: a) Mass cannot be created or destroyed in an isolated system.

9. The law of conservation of baryon number governs the conservation of certain quantum numbers associated with particles called:
a) Electrons
b) Neutrinos
c) Baryons
d) Mesons
Answer: c) Baryons

10. What type of quantity is associated with the rotational motion of an object?
a) Energy
b) Momentum
c) Charge
d) Angular Momentum
Answer: d) Angular Momentum

11. Which law states that certain properties of a system remain constant over time, regardless of the interactions or transformations that occur within the system?
a) Conservation of Mass
b) Conservation of Energy
c) Conservation of Charge
d) Conservation Laws
Answer: d) Conservation Laws

12. What is the name of the law that is a specific application of the conservation of angular momentum for systems that experience no external torques?
a) Law of Conservation of Mass
b) Law of Conservation of Energy
c) Law of Conservation of Angular Momentum
d) Law of Conservation of Charge
Answer: c) Law of Conservation of Angular Momentum

13. Which conservation law is associated with the principle that energy is neither created nor destroyed but can change from one form to another?
a) Conservation of Energy
b) Conservation of Mass
c) Conservation of Momentum
d) Conservation of Charge
Answer: a) Conservation of Energy

14. The law of conservation of charge is associated with which fundamental property of particles?
a) Mass
b) Momentum
c) Charge
d) Energy
Answer: c) Charge

15. What is the name of the law that states the total linear momentum of an isolated system remains constant?
a) Law of Conservation of Mass
b) Law of Conservation of Energy
c) Law of Conservation of Linear Momentum
d) Law of Conservation of Angular Momentum
Answer: c) Law of Conservation of Linear Momentum

Part 2: Download Conservation Laws questions & answers for free

16. Which law states that the total electric charge in an isolated system remains constant?

a) Conservation of Angular Momentum
b) Conservation of Mass
c) Conservation of Energy
d) Conservation of Charge
Answer: d) Conservation of Charge

17. Which conservation law is associated with the principle that momentum is conserved in an isolated system?
a) Conservation of Mass
b) Conservation of Energy
c) Conservation of Angular Momentum
d) Conservation of Momentum
Answer: d) Conservation of Momentum

18. The law of conservation of lepton number governs the conservation of certain quantum numbers associated with particles called:
a) Quarks
b) Baryons
c) Leptons
d) Mesons
Answer: c) Leptons

19. What is the total energy of an isolated system called?
a) Momentum
b) Charge
c) Angular Momentum
d) Mechanical Energy
Answer: d) Mechanical Energy

20. The conservation of linear momentum is a specific application of the conservation of momentum for motion:
a) Along curved paths
b) In a straight line
c) In a circular pattern
d) At constant speed
Answer: b) In a straight line

21. What type of conservation law describes the invariance of certain physical quantities under transformations?
a) Conservation of Mass
b) Conservation of Energy
c) Conservation of Charge
d) Conservation of Angular Momentum
Answer: d) Conservation of Angular Momentum

22. What is the name of the law that states the total momentum of an isolated system remains constant in the absence of external forces?
a) Law of Conservation of Mass
b) Law of Conservation of Energy
c) Law of Conservation of Momentum
d) Law of Conservation of Charge
Answer: c) Law of Conservation of Momentum

23. Which law states that energy cannot be created or destroyed, only converted from one form to another?
a) Conservation of Mass
b) Conservation of Energy
c) Conservation of Momentum
d) Conservation of Charge
Answer: b) Conservation of Energy

24. The law of conservation of energy is derived from the underlying:

a) Symmetries of nature
b) Forces of nature
c) Mass of particles
d) Velocities of particles
Answer: a) Symmetries of nature

25. The law of conservation of charge is associated with which fundamental property of particles?
a) Mass
b) Momentum
c) Charge
d) Energy
Answer: c) Charge

26. The law of conservation of momentum is associated with which physical quantity of an object?
a) Mass
b) Speed
c) Angular Momentum
d) Quantity of Motion
Answer: d) Quantity of Motion

27. What type of conservation law describes the invariance of certain physical quantities under transformations?
a) Conservation of Mass
b) Conservation of Energy
c) Conservation of Charge
d) Conservation of Angular Momentum
Answer: d) Conservation of Angular Momentum

28. The conservation of linear momentum is a specific application of the conservation of momentum for motion:
a) Along curved paths
b) In a straight line
c) In a circular pattern
d) At constant speed
Answer: b) In a straight line

29. What is the name of the law that states the total momentum of an isolated system remains constant in the absence of external forces?
a) Law of Conservation of Mass
b) Law of Conservation of Energy
c) Law of Conservation of Momentum
d) Law of Conservation of Charge
Answer: c) Law of Conservation of Momentum

30. Which law states that energy cannot be created or destroyed, only converted from one form to another?
a) Conservation of Mass
b) Conservation of Energy
c) Conservation of Momentum
d) Conservation of Charge
Answer: b) Conservation of Energy

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