The purpose of maintenance is to ensure that our equipment is in good working conditions. A breakdown in plants and machines clouds is as a result of inadequate maintenance. MEANING OF MAINTENANCE Maintenance is an activity that should be carried out on regular basis in order to keep equipment in good working conditions. […]
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Scientists have produced a lot of modern instruments that can produce sound energy, some of these instruments are:- drum, saxophone, clarinet, piano, guitar, harp etc. Examples of Instruments and Sound Energy Castanets clicking A calliope singing Cymbals crashing A drumstick striking a drum head Electric guitar whining A hammer striking a steel string in a
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Local Instruments that Produce Sounds Local musical instruments are objects put together in the locality to produce music There are many local instruments in Nigeria that can produce sound. This include:- Shekere Samara Gangan Ekwe Udu Agidigbo Bata drum Kakaki Xalam Ogene Kontigi Presentation Step I: Teacher revises the previous topic. Step II: Teacher
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The human digestive system is a series of organs that converts food into essential nutrients that are absorbed into the body. The digestive organs also move waste material out of the body. The enzymes in saliva help break down foods, and the lubrication function of saliva makes it easier for food to be swallowed.
Magnetism is a force that can attract (pull closer) or repel (push away) objects that have a magnetic material like iron inside them (magnetic objects). Magnets can be affected by electricity, which makes them very useful in machines and computers. Magnets are used to make a tight seal on the doors to refrigerators and freezers,
Electricity is a form of energy that can give things the ability to move and work. Electricity makes the following to do work or move: bulbs, toys, machines, cars, television etc. CONDUCTOR AND NON CONDUCTOR CONDUCTOR Conductors are materials that allow energy to flow through them. For example, wire, iron, pin, spoon, etc. They
Technology has improved the standard of living and solved human problems in the following ways.
Highways with traffic light to control the flow of traffic
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A pulley is a wheel that has a smooth groove in its rim, with a rope passing through the groove. At times, there are loads that are too heavy to lift. MEANING OF PULLEY A pulley is a simple machine that is used to lift heavy objects. A simple machine for overcoming this difficulty is
Heat Energy Thermal energy is created from the vibration of atoms and molecules within substances. The faster they move the more energy they possess and the hotter they become. Thermal energy is also called heat energy. Chemical Energy Chemical energy is stored in the bonds of atoms and molecules – it is the energy that
Energy is the ability to be active or to do work MEANING OF ENERGY CONVERSION Energy conversion is also known as energy transformation. It is the process of changing energy from one type of energy to another. FORMS OF ENERGY CONVERSION Mechanical energy can be transformed to heat energy. Electrical energy can be transformed
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Technology is something which needs our eyes on. The latest technology changed a lot from what we saw in the last decade or the past century. New machines and gadgets are invented to make the jobs easier like never before. From the little tailor machine to the fastest car in the world, all got automated
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An inclined plane is a simple machine. It allows one to use less force to move an object. Examples of inclined planes are ramps, sloping roads and hills, plows, chisels, hatchets, carpenter’s planes, and wedges. MEANING INCLINED PLANE An inclined plane is a simple machine used to raise a load to places higher than the
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In the school and at home, we see many moving things. We move about on our legs, vehicles move on roads, trains on the rails, aeroplanes fly in the sky and ships sail on the seas. Movement occurs when a force is applied on a thing or object. That is, force causes things to move.
Gongs are constructed of hammered metal. Most are made out of wood, bronze or brass, but with an amalgam of other metals. Although a lot of gongs are made in China, they are not mass produced like televisions or plastic toys. Each one is handmade. Gongs serve dual purpose of being a musical instrument and
The level of technology in a society determines whether the society is developed or underdeveloped.
Some of the technology that determine the level of development of a society are:
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Drawing is a form of visual art in which a person uses various drawing instruments to mark paper or another two-dimensional medium. Instruments include graphite pencils, pen and ink, various kinds paints, inked brushes, colored pencils, crayons, charcoal, chalk, pastels, various kinds erasers, markers, styluses, and various metals (such as silverpoint). Digital drawing is the act of using a computer to draw. A drawing instrument releases a small amount of material onto a surface, leaving a
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identification of wood up vote13down voteaccepted Hardwood is usually from a deciduous tree and softwood is usually from a coniferous one. Hardwoods typically have a higher density(hence hardwood). For the most part that is the general accepted (although broad) definition and yes there are several exceptions. Little more than that please Much like identifying wood species; determining
REVISION ___ is a universal language used for communication among technical people (a) Scaling (b) Technical drawing (c) Sketching (d) Oblique. Technical people include the following except (a) engineers (b) technicians (c) builders and draughtsman (d) lawyer Which of the following is not a drawing instrument (a) set squares (b) French curve (c) microscope (d)
System of the body and its functions Body systems are groups of organs and tissues that work together to perform important jobs for the body. Some organs may be part of more than one body system if they serve more than one function. Other organs and tissues serve a purpose in only one body system.
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The muscular system is made up of tissues that work with the skeletal system to control movement of the body. Some muscles—like the ones in your arms and legs—are voluntary, meaning that you decide when to move them. Other muscles, like the ones in your stomach, heart, intestines and other organs, are involuntary. Functions