When we hold an item in our hand, it presses our hand downwards. The force by which the body presses the horizontal surface on which it stands is called the weight of the body.
The gravity force and the weight...
Research of the natural sciences began in ancient times. Some important discoveries in physics came from a theoretical approach, and on the other hand, some discoveries resulted from the experiment. Some discoveries occurred by an accident or as a...
It is clear that it is not enough to use only one measuring unit for a particular physical size. So offten, besides basic units, larger and smaller units of measure are introduced.
To indicate these units, we use prefixes that...
The simplest example of straight linear motion is the straight line movement at constant speed. A linear movement is a movement where the body travels equal lengths during the same amounts of time.
Example: A car has passed the lengths...
Gravitational Interaction
Gravity is an invisible force that draws all the bodies in the Universe to each other. Solar gravity keeps the planets in their orbits. Earth's gravity 'ensures' that the Moon circulates in its orbit around the Earth. The...
If some body is being dropped, it will start falling down towards the Earth's surface. It has been determined experimentally that all bodies have the same speed if they fall through the space that has no air. Any two...
If we select a measuring unit for each size, we get a system of measuring unit.
Today we have a unique international system where for each size there is a precisely defined unit of measure. This is called International System...
Aristotle (384-322) studied many fields like philosophy and the natural sciences. Among other things, he studied the movement. He thought that the natural place of the air is up and the water was down. Although his theory is not...
