Introduction The multitudes of motions that are found in nature are associated with the simple functionality of change eventuating in the position of a certain product or object. It so happens that as the object continues to alter its initial position with respect to time the object is said to be in motion otherwise the object is concluded to be in a state of rest. In context to the case of motion, the aspect f measurement differs from one type of motion to the other. In terms of measuring the state of the motion the objects in consideration are quantified ... Read More

Introduction In order to lift or move any material, the lever is used. Sometimes the lever helps to push against materials but does not move them actually. It generally works in order to decrease a certain amount of effort force that is necessary to move loads. All lever provides mechanical advantages but a longer one provides greater mechanical advantages. They can also be used in order to exert a large force over a small distance at 1 end and a small force over a long-distance at the other side. Levers can be used for various purposes like lifting heavy loads, ... Read More

Introduction LED is the semiconductor light source that emits light only in one direction when current flows through it, unlike the ordinary fluorescent and incandescent bulbs. This is the Light Emitting Diode, which is much more effective as they have the benefits of low power consumption, better illumination, and a longer lifespan. In electronic equipment like remote controllers, ACs, Mobile phones, and cameras this LED is used. LED lighting is almost 90% more effective than ordinary CFL bulbs and unlike CFLs LED’s lifespan reduces when it provides an output of 30% light. In this modernized world, LEDs offer an excellent ... Read More

Introduction Electric generator was discovered even before the discovery of the connection between electricity and magnetism. Moving electrically charged plates, disks, and plates were used to operate the electric generators and it follows electrostatic principles. The charge was mainly produced by using either of two mechanisms: turboelectric effect and electrostatic induction of turboelectric effect. Such kinds of generators produced low current and high voltage. Generators are very useful as it supplies poise to the electrical appliances during a power disruption. Generators are available in various physical and electrical configurations for use in different applications. What is a generator?  Figure ... Read More

Introduction Gear generally refers to a special kind of machine element. In gear, the teeth are generally cut in a cone or cylindrical shape. These elements further help gear to transmit force and rotation from the driving shaft to the driven shaft. The profile of the gear tooth is the fundamental design of gear. Gears are mainly used in increasing force and speed. Gear holds very significant value in daily life. What is gear? Gear is very important machinery that is used in increasing speed as well as rotation. Teeth are one of the important elements presented in gears. ... Read More

Introduction The terms torque and moment have different meaning and both of them differs from each other. It is seen that torque is a form and it is multiplies by distance. Moment refers to the force multiplies by any distance from the body. It is seen that moment turns due to the force of rotation. The main difference between these two factors is that torque is the measurement of turning force and moment is a measurement of perpendicular distance. Definition of Torque Figure 1: Torque Torque is nothing but the measurement of the force of ... Read More

Introduction Stress and pressure are both forces that are often misinterpreted; however, pressure is defined as the physical force applied to an object. In simpler words, pressure is an amount of force that is applied per unit area. Pressure is majorly noticed as the unique property of thermodynamics and serves as a cause for the aspect of stress. On the other hand, stress is referred to as the material property and it occurs due to the result of the pressure exerted. However, both the forces are crucial as they are used in the field of physical science and engineering ... Read More

Introduction Planets and stars, being astronomical bodies are held together because of their individual gravity. Distinguishing stars from planets is very important to identify them as different astronomical bodies. Most of the stars possess a particular shape and from the Earth, these are deemed to be a size of a mere dot. The speed of a star is another important factor that is greater than the speed of any other object, especially from planets. About stars Stars are significant celestial bodies that have their own energy and light. The components of a star are mainly Helium and ... Read More

Introduction The similarity of speed and velocity of an object is the movement and the displacement from the previous position within a particular time. The SI unit of both particles is m/s which is a meter per second. Speed and velocity both are dependent on the distance covered, total time taken and direction of movement. The difference is also seen in the unit of measurement of these two aspects. The measuring unit of speed and velocity is meter/second. What is speed? Figure 1: Speed and velocity Speed refers to the total distance covered by an ... Read More

Introduction Sound exists in the immediate surrounding and is produced through all the objects that are present in nature the sound requires a medium to travel through, be it solid, liquid or gases. It is generally known to travel at a speed of 300m/s. It is known to exist in the form of energy and it generates when an object vibrates. The sound however can be a piece of music to the ears or unwanted noise. A sound is classified further based on its associated properties like pitch, loudness, amplitude and the frequency of the wave of sound. The ... Read More