The various situations where physics is applied are as follows:

• When you try to write using a pen on a paper, gravity plays an important role.
• The cellphones are an essential part of our daily life. These works on the concept of electromagnetic spectrum and electricity.
• The batteries are used in various types of devices such as toys and torches. These works on the principle of the capacitance.
• When you try to take a selfie from the camera, the optics concept came into play.
• We all use credit cards to spent money on various kinds of purchases. The magnets are placed in a specific pattern in a credit card. These works on the concept of electromagnetic induction.
• You communicate through telephones because the produced sound waves propagate towards the microphone and convert the mechanical energy of sound waves into electrical energy.
• Our eyes are one of the most critical parts of our life. The eye of a human body also works like a camera that is connected to physics.
• When you travel through a car, then you are asked to tighten your seat belt. The concept behind the tightening of the seat belt is inertia.
• Traffic police use the doppler radars to check the overspeeding on the vehicles. A Doppler radar runs on the concept of the doppler effect.
• When you walk in a park or road it is just because of physics. The resistance that exerts between your slippers and the surface of the road termed as friction.