Physics is one of the most fundamental scientific disciplines, and its main goal is to understand how the universe behaves. Physics generates fundamental knowledge needed for the future technological advances.
Engineering is basically physics applied to create something more practical. It can be mechanical, electrical, civil, etc., but they’re all basically governed by physics. There’s no way you would solve complex engineering problems without understanding the physics behind it.
In Civil Engineering, the laws of physics can tell you about forces, tension, harmonic vibrations and oscillations, tensile strength, elasticity, and all kinds of other concepts that you can use to make calculations about your designing and construction work .
For every subject of Mechanical Engineering, you need the help of physics in dealing with aircraft, watercraft, engines, robotics, weapons, cars, pneumatics, hydraulics and others by using core areas including mechanics, dynamics, thermodynamics, materials science, structural analysis, and electricity.
Electrical engineering involves designing electrical circuits including motors, electronic appliances, optical fiber networks, computers, and communication links. Electrical engineers often need to convert electrical energy to other forms of energy, with the understanding of mechanics and thermodynamics. Knowing the fundamentals of Electrical Engineering, in addition to, how small-scale components like integrated circuits and various types of transistor logic, all functions require at least an intermediate understanding of Electromagnetism, which you learn from Physics.
Electronics include the workings of transistors, diodes and semiconductors. Integrated circuit uses physics to study how various tiny transistors are connected in circuits. Electromagnetism is used for antennae design, RF signals, wireless communications, etc. The field of robotics relies on a lot of things physics such as dynamics, chaos, mechanics, motors, etc. as well as optics (for cameras for computer vision).
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