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Physics

CAREERS IN PHYSICS

Physics has several applications on health, technology & engineering, agriculture and applied sciences. As a results, below are some of the aspects/careers related to physics. IN HEALTH We have: Human medicine and surgery Nursing & midwives Radiotherapy Pharmacology Physiology Anaesthesia Veterinary etc.   IN ENGINEERING We have: Electrical engineering Electronic engineering Mechanical engineering Aeronautic engineering Petroleum engineering etc.   IN AGRICULTURE We have: Agricultural engineering Agricultural production engineering Horticulture etc.   IN BASIC/APPLIED SCIENCES We have: Geophysics Applied physics Biophysics Medical physics Space physics Astronomical physics Engineering physics etc.   Evaluation: Mention any four (4) careers related to physics in: Health Basic science Engineering.   BRANCHES OF PHYSICS The following are the branches of physics. Mechanics Heat Electricity Optics Sound Magnetism Atomic physics Nuclear physics   NOTE: No. 7 & 8 above had been combined and addressed with the current name, ‘’NUCLEAR PHYSICS’’, since the energy comes from the nucleus… Read More »CAREERS IN PHYSICS

Physics

MOTION

MOTION Types of motion: (a) random motion (b) Translational motion  (c). Rotational motion  (d). Oscillatory motion  (e). relative motion Causes and effects of motion.   Types of Motion Definition of motion: Motion by definition is a change in the position of a body with time. Motion exists in various forms and occurs in the three states of matter (solids, liquids and gases). These various forms are;  random, translational, rotational and oscillatory motion. Some examples of motion are; The movement of the earth round the sun The rotation of the earth about its axis An aero plane flying in the sky A boy walking or running   Random Motion Random motion is the movement of a body in a zigzag or disorderly manner with no specific direction as shown in the diagram below. Some examples of this kind of motion are; the motion of dust particles in the air, the motion… Read More »MOTION

Physics

CIRCULAR MOTION

CIRCULAR MOTION 1. Meaning of circular motion Definition of terms Angular velocity ii. Tangential velocity iii. Centripetal acceleration Centripetal force v.  Centrifugal force  vi.  Period  vii. Frequency Calculations on circular motion.   Meaning of circular motion Circular motion is the motion of a body around  a cicle. The simplest form of circular motion is the  uniform circular motion, where the speed is constant but the direction is changing. C V2 B A V1   Consider a body moving in a circular path center O with a constant speed. The direction at different points are not the same i.e the direction at A is different from the direction at B. This leads to a change in velocity. This difference in velocity produces an acceleration directed towards the center of the circle. This acceleration is called centripetal acceleration. Since there is an acceleration, there is a force directed towards the center of… Read More »CIRCULAR MOTION

Physics

Motion Part

MOTION 1. Force Types of forces. Friction and types. Calculations on friction. Advantages and disadvantages of friction. Ways of reducing friction.   Force and the types, Friction and types Force can be defined as that which changes or tends to change the state of rest or uniform motion of a body. Force is a vector quantity and the S.I unit is Newton. Force can cause a body at rest to move, it causes a moving object to accelerate, change direction, move in a curved path e.t.c.   Types of forces: There are two types of forces, namely contact force and force field. Contact force is a force that exists between bodies by virtue of their contact. They are push, pull, normal reaction, tension in strings, wires or frictional force.   Force field/Non-contact force is the force that exists within a vector field such as gravitational field, magnetic field, Electric field,… Read More »Motion Part

Physics

MEASUREMENT IN PHYSICS

MEASUREMENT IN PHYSICS Measurement of area and volume Concept & measurement of time and ways of measuring time.   MEASUREMENT OF VOLUME Volume of liquid objects is measured using instruments such as cylinder, burette, pipette, eureka can, etc. For regular solid objects, their volume could be determined using their mathematical formula. S/N Solid Object Formula for Volume 1. Cube 2. Cuboid 3. Cylinder 4. Cone 5. Sphere The S.I. unit of volume is metre cube .   MEASUREMENT OF AREA The area of a solid object could be determined using mathematical formulae after determining the two dimensions of the object. S/N Solid Object Formula for Area 1. Triangle 2. Rectangle 3. Square 4. Parallelogram 5. Trapezium The S.I. unit of volume is metre square .   WORKED EXAMPLES Find the volume of a cylinder of diameter 12cm and height 15cm. Solution: Now, 2.What is area of a triangular card board… Read More »MEASUREMENT IN PHYSICS

Physics

Position, Distance and Displacement

Position, Distance and Displacement Concept of position, Concept of distance and displacement Distinction between distance and displacement.   CONCEPT OF POSITION The position of an object is its location in space. It is usually expressed in relation to a reference point. To locate an object in space, a co-ordinate system is needed. It is usually a mathematical construct with co-ordinates. A coordinate system could be two-dimensional as in P(x,y) or three dimensional as in P(x,y,z).   Read : MEASUREMENT IN PHYSICS   CONCEPT OF DISTANCE & MEASUREMENT Distance can be define  as a physical measurement of length between two points. It does not take into consideration the direction between the two points it measures; hence, it is a scalar quantity. This therefore means that distance has only magnitude but no direction. E.g, 10km. Distance could be measured using instruments like measuring tape, ruler, venier calliper, micrometer screw gauge, etc.  … Read More »Position, Distance and Displacement

Physics

MEASUREMENT IN PHYSICS

MEASUREMENT IN PHYSICS (CONT) Measurement of area and volume Concept & measurement of time and ways of measuring time.   MEASUREMENT OF VOLUME Volume of liquid objects is measured using instruments such as cylinder, burette, pipette, eureka can, etc. For regular solid objects, their volume could be determined using their mathematical formula. S/N Solid Object Formula for Volume 1. Cube 2. Cuboid 3. Cylinder 4. Cone 5. Sphere The S.I. unit of volume is metre cube .   MEASUREMENT OF AREA The area of a solid object could be determined using mathematical formulae after determining the two dimensions of the object. S/N Solid Object Formula for Area 1. Triangle 2. Rectangle 3. Square 4. Parallelogram 5. Trapezium The S.I. unit of volume is metre square .   WORKED EXAMPLES Find the volume of a cylinder of diameter 12cm and height 15cm. Solution: Now, 2.What is area of a triangular card… Read More »MEASUREMENT IN PHYSICS

Physics

FUNDAMENTAL QUANTITIES AND UNITS

FUNDAMENTAL QUANTITIES AND UNITS Fundamental quantities: mass, length, time and electric charge Simple measurement of current and temperature.   CONCEPT OF FUNDAMENTAL QUANTITIES Fundamental quantities are physical quantities whose dimensions and units are not usually derived from other physical quantities. Basically, there are three fundamental quantities in mechanics. They include: Mass Length and i) Mass: This is a fundamental quantity with dimension ‘M’, usually written in capital letter. The S.I. unit of mass is kilogramme (kg). Mass can also be measured in gramme (g), tonne (t), etc. ii) Length: This is another fundamental quantity with dimension ‘L’, written in capital letter. The S.I. unit of length is metre (m). Length can also be measured in kilometre (km), centimetre (cm), inches (inch), feet (ft), etc.   iii) Time: Time is a fundamental quantity with dimension ‘T’, also written in capital letter. The S.I. unit of time is second (s). Time can… Read More »FUNDAMENTAL QUANTITIES AND UNITS

Physics

MEASUREMENT IN PHYSICS

MEASUREMENT IN PHYSICS Measurement of length Measurement of mass & weight   MEASUREMENT OF LENGTH/DISTANCE Length is measured using the following instruments. (a). Metre Rule: A metre rule is a measuring device calibrated in centimetres (cm) with a range of 0 – 100cm. In using the metre rule, the eye must be fixed vertically on the calibration to avoid parallax errors.The smallest reading that can be obtained on a metre rule is 0.1cm (0.01cm). (b). Callipers:these are used in conjunction with metre rule for measuring diameter of tubes, thickness of sheet, etc. The callipers are of two types – The external calliper and The internal calliper. The external calliper is used to measure the external diameters of solid objects; while the internal calliper is used to measure the internal diameters of solid objects. (c) Vernier calliper The vernier calliper can be used for measuring smalllinear length and diameters of objects… Read More »MEASUREMENT IN PHYSICS

Physics

INTRODUCTION TO PHYSICS

INTRODUCTION TO PHYSICS Definition & Importance of Physics. Aspects/Career in Physics. Branches of physics.   DEFINITION OF PHYSICS The word ‘’PHYSICS’’ originates from the Greek word, ‘’PHYSIS’’, which means nature and natural characteristics. Physics as a body of scientific knowledge, deals with the study of events in the universe, both remote and immediate universe. In actual sense, physics deals with the behaviour of matter as well as the interaction of matter and natural forces. Physics is the study of matter in relation to energy.   IMPORTANCE OF PHYSICS Physics is constantly striving to make sense of the universe. This is seen in the development of theories and new theories used for better understanding of the universe. When we study physics, we acquire the knowledge and skills to understand how and why natural things happen the way they do, and to make reliable predictions about their future occurrences. (e.g mirage, eclipse,… Read More »INTRODUCTION TO PHYSICS

Coat of arms of Nigeria

PHYSICS SS 3 SCHEME OF WORK

PHYSICS SS 3 FIRST TERM Waves, Motion without Material Transfer – Properties of Waves – Electromagnetic Waves Fields at Rest and In Motion – Gravitational Field – Electric Field – Magnetic fields – Electro-magnetic Field – Simple A.C. circuits   PHYSICS SS 3 SECOND TERM Energy Quantization and Duality of Matter – Models of the atom – Nucleus – Energy quantization – Duality of Matter Conservation Principles – Energy and Society – Conversion of Energy Physics in Technology – Battery – Electroplating – Application of Electromagnetic field – Transmission systems – Uses of machines – Repairs and maintenance of machines – Dams and Energy Production – Rockets and Satellites – Niger-SAT I – NICOM-SAT I General revision…General revision…General revision.   Also See MARKETING SSS 3 FOR SCHEME OF WORK MATHEMATICS (MATHS) SSS 3 SCHEME OF WORK LITERATURE-IN-ENGLISH SSS 3 SCHEME OF WORK ISLAMIC RELIGIOUS STUDIES (IRS) SSS 3 SCHEME OF… Read More »PHYSICS SS 3 SCHEME OF WORK

Coat of arms of Nigeria

PHYSICS SS 2 SCHEME OF WORK

PHYSICS SS 2 FIRST TERM 1. Position, distance and displacement. 2. Vectors 3. Speed, velocity and Acceleration. 4. Equation of uniformly accelerated motion 5. Equilibrium of forces. 6. Projectile 7. Simple harmonic motion. PHYSICS SS 2 SECOND TERM 1. Mechanical Energy 2. Heat Energy (i) Temperature and its measurement 3. Heat Energy Measurements. 4. Gas Laws 5. Molecular Theory of Matter PHYSICS SS 2 THIRD TERM 1. Types of Waves 2. Light waves 3. Sound waves 4. Human Eye 5. Application of sound waves 6. Musical Instruments   Also See MARKETING SSS 2 SCHEME OF WORK MATHEMATICS (MATHS) SSS 2 SCHEME OF WORK LITERATURE-IN-ENGLISH SSS 2 SCHEME OF WORK ISLAMIC RELIGIOUS STUDIES SSS 2 SCHEME OF WORK

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