APPLICATION OF PHYSICS IN VARIOUS SECTORS OF THE ECONOMY AND CAREER EXPLORATION
Definition and Meaning of Physics
Physics is the scientific study of matter, energy, and the fundamental forces of nature. It originates from the Latin word “physica” meaning “natural thing”. It seeks to understand the behaviour and properties of the physical universe, from the smallest particles to the largest structures, through observation, experimentation, and mathematical modelling.
Careers Related to Physics
Physics opens doors to exciting careers in Ghana, driving economic and technological advancements. Careers such as carpentry, masonry, welding, vulcanising, and engineering all rely on various sub-fields of physics, such as mechanics, thermodynamics, electromagnetism, and material science. Carpenters and masons use mechanics to understand forces and structures, while welders and vulcanisers apply thermodynamics and material science to manage heat and material behaviour. Engineers across disciplines, including civil, electrical, and mechanical, utilise physics principles in designing machines, structures, and systems. In each of these careers, physics provides essential insights into the behaviour of materials, forces, and energy, ensuring safety and efficiency in practical applications.
Activity 1.3 Discovering subfields in physics
Objective:
To independently research and understand different areas of physics and their real-world applications.
What to do:
1. Choose a Subfield: Select one area of physics to explore:
• Classical Mechanics
• Thermodynamics
• Electromagnetism
• Quantum Mechanics
• Relativity
• Optics
• Nuclear Physics
• Particle Physics
2. Research: Use online resources or textbooks to learn about your chosen subfield. Focus on:
• Key concepts and how they apply in everyday life.
• Examples of how this subfield is used in technology.
• Future impacts on science and technology.
3. Write a summary or create a short presentation using the following guidelines:
• Explain what the subfield studies.
• Give examples of how it is applied.
• Discuss why it is important for future advancements.
An example of this is presented below to guide you:
1. How physics is used in engineering:
• Engineers use physics to ensure that buildings and bridges are stable and safe. They apply principles like force distribution and material strength.
• Engineers calculate the forces acting on the bridge, such as weight and tension, to determine the best materials and design. By understanding these forces, they can design a bridge that can withstand heavy loads and harsh weather conditions.
Think about a bridge in your community. What materials do you think were used? How might engineers have applied physics principles to ensure it is strong and safe?