It's not really accurate to say there are only 3 objectives of studying physical science. Instead, it's more helpful to think about the broad goals or purposes of this field of study. Here are a few key objectives:

1. Understanding the Natural World:

* Observation and Description: To carefully observe and describe the physical phenomena that occur in our world.

* Explanation and Prediction: To develop explanations for these phenomena and use those explanations to make predictions about future events.

* Knowledge and Curiosity: To foster a deep understanding of the fundamental laws and principles governing the physical world, driven by curiosity and a desire to explore the unknown.

2. Solving Problems and Improving Life:

* Technology and Innovation: To apply scientific knowledge to develop new technologies and solutions for practical problems, such as energy production, transportation, communication, and medicine.

* Environmental Stewardship: To understand and address environmental challenges like climate change and pollution.

* Human Well-being: To improve human health, safety, and quality of life through scientific advancements.

3. Developing Critical Thinking Skills:

* Logical Reasoning: To train the mind to think logically, solve problems, and draw conclusions based on evidence.

* Data Analysis and Interpretation: To develop the ability to analyze data, identify patterns, and draw meaningful interpretations.

* Communication and Collaboration: To effectively communicate scientific ideas, collaborate with others, and contribute to the advancement of knowledge.

Remember: These objectives are interconnected. Studying physical science isn't about memorizing facts; it's about developing a critical and inquiring mind, understanding the universe around us, and using that knowledge to solve problems and improve the world.