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… 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… Read More »FUNDAMENTAL QUANTITIES AND UNITS
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… Read More »MEASUREMENT IN 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… Read More »INTRODUCTION TO PHYSICS
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 –… Read More »PHYSICS SS 3 SCHEME OF WORK
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.… Read More »PHYSICS SS 2 SCHEME OF WORK
X-RAYS
X-rays were discovered by a German scientist named Roentgen in 1985. They can pass through most substances including soft tissues of the body but not through bones and most metals.… Read More »X-RAYS
CATHODE RAYS
What is cathode rays?. These are streams of electrons emitted at the cathode of an evacuated tube containing an anode and a cathode. Production of cathode rays They are produced… Read More »CATHODE RAYS
MAINS ELECTRICITY
Sources of mains electricity Mains electricity comes from a power station and its current is the alternating current which can either be stepped up or down by a transformer. A.c… Read More »MAINS ELECTRICITY
THIN LENCES
What is a Len?. A lens is conventionally defined as a piece of glass which is used to focus or change the direction of a beam of light passing through it.… Read More »THIN LENCES
WAVES
Properties of waves Waves exhibit various properties which can be conveniently demonstrated using the ripple tank. It consists of a transparent tray filled with water and a white screen as… Read More »WAVES
ENERGY, WORK, POWER AND MACHINES
Energy This is the ability to do work. Forms of energy. Chemical energy: – this is found in foods, oils charcoal firewood etc. Mechanical energy:– there are two types; Potential energy… Read More »ENERGY, WORK, POWER AND MACHINES
LINEAR MOTION
Introduction Study of motion is divided into two; Kinematics Dynamics In kinematics forces causing motion are disregarded while dynamics deals with motion of objects and the forces causing them. Displacement… Read More »LINEAR MOTION
SOUND
Sound is an important example of a longitudinal wave which is composed of both compressions and rarefactions. The frequency range in which compressional disturbances occur is called the sonic spectrum… Read More »SOUND
WAVES
What is a wave?. A wave is simply a disturbance that moves through a medium . Other waves do not require a medium to travel i.e. they can travel in… Read More »WAVES
HOOKES LAW
Hooke’s law states that “the extension of a spring is proportional to the applied force, provided that the force is not large enough to deform the spring permanently”. Mathematically expressed… Read More »HOOKES LAW
REFLECTION AT CURVED SURFACES
Concave and convex mirrors They are also known as spherical mirrors and are formed when a spherical glass is silvered . If the inside is silvered a convex or diverging… Read More »REFLECTION AT CURVED SURFACES
EQUILIBRIUM AND CENTRE OF GRAVITY
Centre of gravity Centre of gravity or C.G is the point of balance of a body in which the total weight of the body seems to act through. For regular… Read More »EQUILIBRIUM AND CENTRE OF GRAVITY
TURNING EFFECT OF A FORCE
Turning Effects The turning effect of a body is called the moment of that force. The turning effect produced depends on both the size of the force and the distance… Read More »TURNING EFFECT OF A FORCE
MAGNETISM
Introduction Magnets are substances that are able to attract and hold items. Lodestone is the only known natural magnet which was discovered by the Chinese 2,000 years ago. Other magnets… Read More »MAGNETISM