ILELABOYE PETER

EQUILIBRIUM OF BODIES IN LIQUID When a heavy object is immersed in a liquid the object appears to become lighter. Consider the experience when a bucket of water is being drawn out of a well. While still under the water the bucket appears very light and becomes very heavy as soon as it is out of water. Archimedes explains .................... Read more

FRICTION Friction is defined as a force which acts at the surface of separation between two objects in contact and tends to oppose the motion of one over the other. It acts tangential to the surface of separation between two bodies in contact. Friction ........... Read more

REGISTERS Registers are temporary storage area for instructions or data. They are not a part of memory; rather they are special additional storage locations that offer the advantage of speed. It works under the ........ Read more

An input device is a peripheral device through which data are entered or fed and transformed into machine – readable form. Before computer processing, data must be entered into computer by an input device so that they can be translated into a machine – readable ............ Read more  

Motion involves a change of position of a body with time. It also involves how things move and what makes them to move. There are two forms of motion: Kinematic motion which is the description of how ................... Read more  

An object is in equilibrium when it is not accelerated, that is there is no force acting on it in any direction. For a body in equilibrium, the forces acting on it are so related in magnitude ................. Read more  

LOGIC GATES A logic gate is an elementary building block of a digital circuit. It processes one or more input signal in a logical fashion. Depending on the input value or voltage, the logic gate will ............ Read more  

ABACUS: This is the first calculating device invented by Chinese. It is made up of a frame divided into two parts by a horizontal bar an vertical threads. It is also known Soroban in Japan and Suan Pan in ........... Read more

DIMENSION OF PHYSICAL QUANTITIES Dimension denotes the physical nature of a quantity in Physics. It indicates how physical quantities are made up in terms of the S.I. base quantities. In other words.......... Read more

Projectile Motion Let us consider a boy who releases a piece of stone from his catapult against a bird on a tree branch, the stone will travel in parabolic path towards................. Read more 

Data and Information Data is derived from the Latin word called DATUM which means “fact that is yet to be manipulated to produce result. Therefore, data is....... Read more  

Memory Unit Memory is the part of the computer that holds data and instructions for processing. It stores program and instructions or data for only ......... Read more