When the driver of a moving car uses the brakes, we describe the car movement as a decelerating motion because the car speed decreases as time passes. The ratio d/t remains constant in the...
Motion happens all around us. Every day, we see objects such as cars and motorbikes move in different directions at different speeds. When the position of an object (as a bike) changes as time...
The motion of planets around the Sun is considered as a periodic motion as it is repeated regularly in equal periods of time, The motion of spring is considered as an oscillatory periodic motion,...
X-rays are used in photographing bones because they detect the bone fractures. Gamma rays have medical purposes because they are used to treat and discover some swellings (tumors). Exposing dental treatment tools for ultraviolet...
