Question

C. Read the following passage and answer the questions that follow.

Physics extends well into your everyday life, describing the motion, forces and energy

of ordinary experience. In actions such as walking, driving a car or using a phone,

physics is at work. For everyday living, all the technologies you might take for granted

exploit the rules of physics.

An easy place to see physics in action is with a simple lever – most easily observed at a

park. Levers come in three models, each with varying fulcrum locations. They serve to

magnify force, lessening the effort needed to move an object on the opposing end. A

simple “see-saw” at a park consists of a lever (the locations for sitting) and the fulcrum

(placed in the middle). The two opposing forces counterbalance each other, creating a

smooth ride through the air. At the same park you'll see a slide, a device that combines

the stairs going up with the slide going down, both examples of inclined planes. The

inclined plane eases the effort of climbing by spreading it over a longer distance. The

smooth slide returns you gently to earth, slowing the influence of gravity just enough to

make it fun.

The transportation industry is no stranger to the manipulation of everyday physics. Cars

and trains utilize the wheel, which provides a smooth, steady motion. Newton's laws of

motion are at work as mechanical force and acceleration, action, reaction and inertia.

Airplanes take it one step further, allowing lift as well as forward momentum. They

manipulate physics – much like birds – by creating lift through wing shape as well as

the wing‟s angle – both of which serve to alter airflow.

Physics is all relative. This theme resonates through Einstein‟s special and general

theories of relativity. Einstein's work is crucially important to GPS in your phone,​

Answer 1

Answer:

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