Physics extends well into your everyday life, describing the motion, strength and energy of the ordinary experience. Physics is at work in actions such as walking, driving a car or using a phone. For everyday life, all the technologies that you could take for granted are based on the rules of physics.
Simple Mechanical Devices
An easy place to see physics in action is with a simple lever–most easily seen in a park. Levers come in three flavours, each with different fulcrum locations. They serve to increase force, reducing the effort needed to move the object to the opposite end. A simple ""see-saw"" in the park consists of a lever (seating location) and a fulcrum (seated in the middle). The two opposing forces are balancing each other, creating a smooth ride through the air. You'll see a slide in the same park, a device that combines the stairs going up with the slide going down, both examples of inclined planes
Transportation and Newton's Laws
The transport industry is no stranger to the manipulation of everyday physics. Cars and trains use the wheel to ensure smooth, steady motion. Newton's laws of motion are working as mechanical force and acceleration, action, reaction and inertia. Aeroplanes take this one step further, allowing for both lift and forward momentum. They manipulate physics–much like birds–by creating a wing shape lift as well as a wing angle–both of which serve to alter the flow of air.

Relativity and Modern Communications
Physics is relative to everything. This theme resonates with the special and general theories of the relativity of Einstein. For example, Einstein's work is of crucial importance to GPS on your phone. It takes radio signals from several satellites orbiting the Earth and calculates the exact location to several centimetres. Because the speed and height of the satellites alter the signal very slightly, the smartphone adjusts the results using Einstein's theory.

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