Energy Wind Energy Solar Energy Nuclear Energy Solar power. How to use its energy About the sun: Solar Power is energy obtained by the sun in the form of light. ( When you are at the beach, you feel the sun as heat energy, but heat energy can’t […]
Energy Wind Energy Solar Energy Nuclear Energy Work, Energy and Power Work: Wind energy has traditionally been exploited for thousands of years as a source of energy in ship navigation, wind mills and throughout the last 30 years for producing electricity using wind turbines. Wind is a renewable energy because […]
Energy Wind Energy Solar Energy Nuclear Energy Work, Energy and Power Work: A man pushing a car along a level road is said to be doing work. The amount of work done depends on the force exerted and the distance through which the force acts. UNIT OF WORK: Since […]
Mechanism Gears Steam engine 4 Stroke engine Turbojet Exercices Mechanisms Exercises 1º Indicate, for each case, in which direction the balance is inclined: towards the right, left or in equilibrium. 2º . What mechanisms can be used if I have to raise a piano to the 6th floor so […]
Mechanism Gears Steam engine 4 Stroke engine Turbojet Exercices Turbo Jet. The heart of the aeroplane Newton’s third law says: For every force acting on a body there is an equal and opposite reaction. 1600 years before any flying machine could ever fly and before Newton announced the third […]
Mechanism Gears Steam engine 4 Stroke engine Turbojet Exercices Four stroke engine . Stroke is defined as the movement of the piston from the ‘bottom dead centre ‘ (BDC) to the ‘top dead centre’ (TDC) or the other way round, that is from TDC to BDC. A four stroke […]
Mechanism Gears Steam engine 4 Stroke engine Turbojet Exercices Steam engine . A steam engine is a machine that produces mechanical work using steam. It needs a hot source to transform water into steam. On the left, a simple steam engine. There is an inlet valve ( in the […]
Mechanism Gears Steam engine 4 Stroke engine Turbojet Exercices Gears, Gears or toothed wheels are type drives which are used to transmit motion between two shafts or a shaft and a component having linear motion, by the meshing of two or more gears. The ratio of the rotational speeds […]
Mechanism Gears Steam engine 4 Stroke engine Turbojet Exercices Levers. Give me the place to stand, and I shall move the earth (Arquimedes) A lever is a simple machine that makes work easier; it involves moving a load around a pivot using a force. In a lever there is a […]
Materials Building Structure Forces Types Exercices Materials Exercises 1º The function of slates is to prevent water from penetrating the roof of houses. They are principally made of clay and they are cooked at a high temperature. What is the name of one of the components which facilitates […]