Need some proper wording for a Formal Lab

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Momentum and energy are key concepts in physics that illustrate conservation principles in systems. The lab aims to explore how momentum is conserved during collisions and how energy is conserved in pendulum swings, highlighting their interrelationship and real-world applications. The original wording referred to "passive forces," which is inaccurate since energy is not a force. Suggestions for improvement include replacing "passive forces" with "conserved quantities" to enhance clarity. The discussion emphasizes the importance of precise terminology in scientific writing.
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The sentence starts out as such:

Momentum and energy are only two of the many passive forces in the world. It is important to understand how momentum and energy function in a system to fully grasp their concepts and how the two forces affect and conserve themselves in a system. This lab was performed to learn how momentum is conserved during the collision, to understand how energy is conserved during the swing of the pendulum, and to develop the relationship between the two and their real-world application.

I know that energy is not considered a force. So..., what could I put in place of passive forces? Also, please feel free to edit any other places in the paragraph as you see fit. Thank you!
 
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conserved quantities?
 
Me likey! That is a really good suggestion!
 
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