Physics
WASSCE · NECO · UTME · NABTEB
Measurement and Units
In Physics, we measure things like how long a road is, how heavy a bag of garri feels, or how long a generator runs. These are called physic
- 1Fundamental and derived quantities6 min · 5 questions→
- 🔒SI units and prefixesFinish "Fundamental and derived quantities" first
- 🔒Dimensions of physical quantitiesFinish "SI units and prefixes" first
- 🔒Measuring length, mass and timeFinish "Dimensions of physical quantities" first
- 🔒Errors and significant figuresFinish "Measuring length, mass and time" first
- 🔒Scalars and vectorsFinish "Errors and significant figures" first
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Motion
In Physics, we say an object has moved if its position changes as time passes. Think about when you leave your house in the morning to go to
- 1Types of motion6 min · 5 questions→
- 🔒Distance, displacement, speed and velocityFinish "Types of motion" first
- 🔒AccelerationFinish "Distance, displacement, speed and velocity" first
- 🔒Distance-time and velocity-time graphsFinish "Acceleration" first
- 🔒Equations of uniformly accelerated motionFinish "Distance-time and velocity-time graphs" first
- 🔒Motion under gravityFinish "Equations of uniformly accelerated motion" first
- 🔒Projectile motionFinish "Motion under gravity" first
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Forces and Newton's Laws
In Physics, a force is simply a push or a pull on an object. Think about when you push a heavy bag of garri across the floor or when you pul
- 1Types of force6 min · 5 questions→
- 🔒Newton's first law and inertiaFinish "Types of force" first
- 🔒Newton's second law and momentumFinish "Newton's first law and inertia" first
- 🔒Newton's third lawFinish "Newton's second law and momentum" first
- 🔒Conservation of linear momentumFinish "Newton's third law" first
- 🔒Impulse and collisionsFinish "Conservation of linear momentum" first
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Friction
Imagine you are pushing a heavy bag of garri across a cement floor. You will notice that you need to apply some force to make it move. If yo
- 1Meaning and types of friction6 min · 5 questions→
- 🔒Laws of friction and coefficientFinish "Meaning and types of friction" first
- 🔒Advantages, disadvantages and reducing frictionFinish "Laws of friction and coefficient" first
- 🔒Viscosity and terminal velocityFinish "Advantages, disadvantages and reducing friction" first
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Vectors and Equilibrium
In Physics, some things only have size, like a bag of garri weighing 50kg. But some things have both size and direction, like a bus moving a
- 1Resultant of vectors8 min · 5 questions→
- 🔒Resolution of vectorsFinish "Resultant of vectors" first
- 🔒Moments and the principle of momentsFinish "Resolution of vectors" first
- 🔒Conditions of equilibriumFinish "Moments and the principle of moments" first
- 🔒Centre of gravity and stabilityFinish "Conditions of equilibrium" first
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Work, Energy and Power
In our daily lives, we say we are 'working' when we study for JAMB or carry a heavy bucket of water. But in Physics, if you carry a heavy ba
- 1Work done by a force6 min · 5 questions→
- 🔒Kinetic and potential energyFinish "Work done by a force" first
- 🔒Conservation of energyFinish "Kinetic and potential energy" first
- 🔒PowerFinish "Conservation of energy" first
- 🔒Energy sources and the environmentFinish "Power" first
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Simple Machines
A machine is a device that helps us do work more easily. Imagine trying to pull a heavy bucket of water out of a deep borehole with just you
- 1Mechanical advantage, velocity ratio and efficiency8 min · 5 questions→
- 🔒LeversFinish "Mechanical advantage, velocity ratio and efficiency" first
- 🔒PulleysFinish "Levers" first
- 🔒Inclined plane, screw and wheel and axleFinish "Pulleys" first
- 🔒Hydraulic pressFinish "Inclined plane, screw and wheel and axle" first
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Circular Motion and Gravitation
Imagine you are tieing a stone to a piece of string and swinging it over your head. The stone is moving in a circle. Even if you don't speed
- 1Angular velocity and centripetal force8 min · 5 questions→
- 🔒Examples of circular motionFinish "Angular velocity and centripetal force" first
- 🔒Newton's law of universal gravitationFinish "Examples of circular motion" first
- 🔒Acceleration due to gravity and weightFinish "Newton's law of universal gravitation" first
- 🔒Satellites and escape velocityFinish "Acceleration due to gravity and weight" first
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Simple Harmonic Motion
Have you noticed how a rocking chair moves back and forth? Or how a generator belt moves up and down when it is running? In Physics, we call
- 1Oscillation and SHM6 min · 5 questions→
- 🔒Period, frequency and amplitudeFinish "Oscillation and SHM" first
- 🔒Simple pendulum and loaded springFinish "Period, frequency and amplitude" first
- 🔒Energy in SHMFinish "Simple pendulum and loaded spring" first
- 🔒Forced vibration and resonanceFinish "Energy in SHM" first
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Elasticity
Have you ever noticed how a rubber band goes back to its normal size after you stretch it? Or how a slinky spring bounces back when you let
- 1Elastic and plastic behaviour6 min · 5 questions→
- 🔒Hooke's lawFinish "Elastic and plastic behaviour" first
- 🔒Stress, strain and Young's modulusFinish "Hooke's law" first
- 🔒Work done in stretchingFinish "Stress, strain and Young's modulus" first
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Pressure
Think about walking on a muddy ground. If you wear high-heeled shoes, the heel sinks deep into the mud. But if you wear flat sandals, you do
- 1Pressure in solids6 min · 5 questions→
- 🔒Pressure in liquidsFinish "Pressure in solids" first
- 🔒Atmospheric pressure and barometersFinish "Pressure in liquids" first
- 🔒Manometers and pressure gaugesFinish "Atmospheric pressure and barometers" first
- 🔒Pascal's principleFinish "Manometers and pressure gauges" first
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Fluids at Rest and in Motion
Have you ever noticed that when you try to push a plastic bowl inside a bucket of water, the water pushes it back up? Or when you are liftin
- 1Archimedes' principle and upthrust6 min · 5 questions→
- 🔒Law of flotationFinish "Archimedes' principle and upthrust" first
- 🔒Density and relative densityFinish "Law of flotation" first
- 🔒Surface tensionFinish "Density and relative density" first
- 🔒CapillarityFinish "Surface tension" first
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Temperature and Its Measurement
Many people think heat and temperature are the same thing, but in Physics, they are different. Imagine you are boiling a small cup of water
- 1Heat and temperature8 min · 5 questions→
- 🔒Temperature scalesFinish "Heat and temperature" first
- 🔒Types of thermometersFinish "Temperature scales" first
- 🔒Thermometric propertiesFinish "Types of thermometers" first
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Thermal Expansion
Have you noticed how electric poles' wires sag more during a very hot afternoon than at night? Or why there are gaps in railway tracks? This
- 1Linear expansion6 min · 5 questions→
- 🔒Area and volume expansionFinish "Linear expansion" first
- 🔒Expansion of liquids and anomalous expansion of waterFinish "Area and volume expansion" first
- 🔒Applications and problems of expansionFinish "Expansion of liquids and anomalous expansion of water" first
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Heat Transfer
Heat is like a visitor that always wants to move from a very hot place to a cooler place. If you put a metal spoon inside a hot bowl of pepp
- 1Conduction6 min · 5 questions→
- 🔒ConvectionFinish "Conduction" first
- 🔒RadiationFinish "Convection" first
- 🔒The vacuum flaskFinish "Radiation" first
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Gas Laws
Have you noticed what happens when you try to squeeze an inflated balloon? As you press it harder, the space inside gets smaller, and you fe
- 1Boyle's law6 min · 5 questions→
- 🔒Charles' lawFinish "Boyle's law" first
- 🔒Pressure lawFinish "Charles' law" first
- 🔒General gas equationFinish "Pressure law" first
- 🔒Kinetic theory of gasesFinish "General gas equation" first
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Quantity of Heat
Have you noticed that if you put a small cup of water and a big basin of water on the same gas cooker, the small cup gets hot faster? This i
- 1Heat capacity and specific heat capacity8 min · 5 questions→
- 🔒Method of mixturesFinish "Heat capacity and specific heat capacity" first
- 🔒Latent heatFinish "Method of mixtures" first
- 🔒Evaporation, boiling and melting pointFinish "Latent heat" first
- 🔒Vapour pressure and humidityFinish "Evaporation, boiling and melting point" first
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Waves
Think about what happens when you throw a stone into a well or a bucket of water. You will see circles of water moving away from where the s
- 1Production and types of waves8 min · 5 questions→
- 🔒Wave terms and the wave equationFinish "Production and types of waves" first
- 🔒Properties of wavesFinish "Wave terms and the wave equation" first
- 🔒Interference and stationary wavesFinish "Properties of waves" first
- 🔒Electromagnetic spectrumFinish "Interference and stationary waves" first
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Sound Waves
Have you ever noticed how a generator vibrates when it is running, or how your throat feels when you shout? That shaking movement is what cr
- 1Production and propagation of sound6 min · 5 questions→
- 🔒Speed of sound and echoesFinish "Production and propagation of sound" first
- 🔒Characteristics of soundFinish "Speed of sound and echoes" first
- 🔒Vibrations in stringsFinish "Characteristics of sound" first
- 🔒Vibrations in air columns and resonanceFinish "Vibrations in strings" first
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Light Waves
Light is a form of energy that helps our eyes to see things. Imagine you are in a room at night and NEPA takes the light; you cannot see any
- 1Sources and rectilinear propagation of light6 min · 5 questions→
- 🔒Pinhole camera and eclipsesFinish "Sources and rectilinear propagation of light" first
- 🔒Reflection at plane mirrorsFinish "Pinhole camera and eclipses" first
- 🔒Reflection at curved mirrorsFinish "Reflection at plane mirrors" first
- 🔒Mirror formula and magnificationFinish "Reflection at curved mirrors" first
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Refraction of Light
Have you ever noticed how a stick looks bent when you dip it inside a bucket of water? Or how the bottom of a clear swimming pool looks shal
- 1Laws of refraction and refractive index8 min · 5 questions→
- 🔒Real and apparent depthFinish "Laws of refraction and refractive index" first
- 🔒Total internal reflection and critical angleFinish "Real and apparent depth" first
- 🔒Refraction through prisms and dispersionFinish "Total internal reflection and critical angle" first
- 🔒Lenses and the lens formulaFinish "Refraction through prisms and dispersion" first
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Optical Instruments
The human eye is just like a natural camera that God gave us to see the world. It uses a lens to focus light on a screen so that we can see
- 1The human eye and its defects8 min · 5 questions→
- 🔒Simple and compound microscopeFinish "The human eye and its defects" first
- 🔒TelescopesFinish "Simple and compound microscope" first
- 🔒The camera and projectorFinish "Telescopes" first
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Electrostatics
Have you ever noticed your clothes sticking to your body after drying? Or felt a small shock when touching a metal door handle after walking
- 1Charges and charging methods6 min · 5 questions→
- 🔒Coulomb's lawFinish "Charges and charging methods" first
- 🔒Electric field and potentialFinish "Coulomb's law" first
- 🔒Gold-leaf electroscope and lightning conductorFinish "Electric field and potential" first
- 🔒Capacitors and capacitanceFinish "Gold-leaf electroscope and lightning conductor" first
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Current Electricity
Think of electricity like water flowing in a pipe. Just as water flows from a high tank to a low tap, electricity flows from one point to an
- 1Electric current and potential difference6 min · 5 questions→
- 🔒Ohm's law and resistanceFinish "Electric current and potential difference" first
- 🔒Resistors in series and parallelFinish "Ohm's law and resistance" first
- 🔒Electromotive force and internal resistanceFinish "Resistors in series and parallel" first
- 🔒Resistivity and conductivityFinish "Electromotive force and internal resistance" first
- 🔒Wheatstone bridge and potentiometerFinish "Resistivity and conductivity" first
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Electrical Energy and Power
Think about your phone battery or the generator in your yard. When you switch on your bulb or fan, something is being used up to make those
- 1Electrical energy and power7 min · 5 questions→
- 🔒Heating effect of currentFinish "Electrical energy and power" first
- 🔒Cost of electricityFinish "Heating effect of current" first
- 🔒Fuses and house wiringFinish "Cost of electricity" first
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Chemical Effects of Current
Think about how we charge our phone batteries or how people plate cheap jewelry with gold to make it look expensive. All these processes hap
- 1Electrolysis8 min · 5 questions→
- 🔒Faraday's laws of electrolysisFinish "Electrolysis" first
- 🔒Primary and secondary cellsFinish "Faraday's laws of electrolysis" first
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Magnetism
Think about the small black stones found inside old radio speakers or the strip that keeps your fridge door closed. Those are magnets. A mag
- 1Magnets and magnetic properties6 min · 5 questions→
- 🔒Making and destroying magnetsFinish "Magnets and magnetic properties" first
- 🔒Magnetic fieldsFinish "Making and destroying magnets" first
- 🔒Earth's magnetic fieldFinish "Magnetic fields" first
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Electromagnetism
Have you noticed how a generator works or why NEPA light makes a small buzz near big transformers? It is because electricity and magnetism a
- 1Magnetic field around a current8 min · 5 questions→
- 🔒Force on a conductor and the motor effectFinish "Magnetic field around a current" first
- 🔒Electromagnets and their usesFinish "Force on a conductor and the motor effect" first
- 🔒Moving coil galvanometer and metersFinish "Electromagnets and their uses" first
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Electromagnetic Induction
Have you ever noticed how your generator works even though there is no battery connected to the wires? It happens because of a special trick
- 1Faraday's and Lenz's laws6 min · 5 questions→
- 🔒A.C. and D.C. generatorsFinish "Faraday's and Lenz's laws" first
- 🔒TransformersFinish "A.C. and D.C. generators" first
- 🔒Power transmissionFinish "Transformers" first
- 🔒InductanceFinish "Power transmission" first
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Alternating Current Circuits
If you look at the back of your television or the electric fan in your parlor, you will see something like 220V or 240V written on it. This
- 1Peak and r.m.s values6 min · 5 questions→
- 🔒Resistor, inductor and capacitor in a.c.Finish "Peak and r.m.s values" first
- 🔒Reactance and impedanceFinish "Resistor, inductor and capacitor in a.c." first
- 🔒Resonance in RLC circuitsFinish "Reactance and impedance" first
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Atomic and Nuclear Physics
Everything you see, from the garri you eat to the generator in your backyard, is made of tiny building blocks called atoms. For a long time,
- 1Models of the atom8 min · 5 questions→
- 🔒Energy levels and spectraFinish "Models of the atom" first
- 🔒RadioactivityFinish "Energy levels and spectra" first
- 🔒Half-lifeFinish "Radioactivity" first
- 🔒Nuclear fission and fusionFinish "Half-life" first
- 🔒Uses and dangers of radiationFinish "Nuclear fission and fusion" first
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Modern Physics and Electronics
Have you ever noticed how a solar calculator starts working the moment you take it out into the sun? Or how some street lights automatically
- 1Photoelectric effect8 min · 5 questions→
- 🔒X-raysFinish "Photoelectric effect" first
- 🔒Thermionic emission and cathode raysFinish "X-rays" first
- 🔒Semiconductors and diodesFinish "Thermionic emission and cathode rays" first
- 🔒RectificationFinish "Semiconductors and diodes" first
- 🔒Wave-particle dualityFinish "Rectification" first
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