relation between objects in space

Matter exists in several phases. If we look at all objects around us, we perceive that some materials have a definite shape and occupy a definite amount of space or volume. We call these materials solids and we can name many objects that are solids. We say that solids ..

An object is said to be at rest if it does not change its position with respect to its surroundings. Have you watched the night sky? You have observed that the position of stars and planets change while you remain stationary. In reality the earth is moving too. Thus, an object..

Magnification produced by a spherical mirror gives the relative extent to which the image of an object is magnified with respect to the object size. Magnification is expressed as the ratio of the height of the image to the height of the object. It is usually..

can be defined as obtaining information about an object by observing it from a distance and without coming to actual contact with it. Infact when we see an object and understand what it is, our eye is sensing that object remotely. This is a broad definition. But we ge..

In translatory motion the particle moves from one point in space to another. This motion may be along a straight line or along a curved path. Motion along a straight line is called rectilinear motion. Motion along a curved path is called curvilinear motion. Example: A car moving on a str..

Imagine you are travelling in a moving train. Do you observe any change in your position with respect to your co-passengers? Is there any change of scene you view through the window? The change of scene indicates that the train is moving. That is, an object is said to be in motion if it c..

Any tall or massive objects will obstruct space waves, since they travel close to the ground. Consequently, shadow zones and diffraction will result. This is the reason for the need in some areas for antennas higher than would be indicated by Equation (1). On the other hand, som..

Consider an object of mass 'm', raised through a height 'h' above the earth's surface. The work done against gravity gets stored in the object as it's potential energy (gravitational potential energy). Therefore, potential energy = work done in raising the object throu..

Take a look at your surroundings. You may find a pencil, a book, an apple, a table or a chair. Can you feel the air blowing? These are different forms of matter. One or more of our senses can recognize these. These objects possess mass, occupy space and have different shapes, s..

Race to the Moon - As soon as rockets could break away from the earth's gravity, moon became the next goal. Russians took the lead landing their spacecraft LUNA-3 which photographed the far side of moon in 1959. Meanwhile, the United States launched 11 unmanned moon missions without a single one co..