Len Academy
Questions and Answers for Students
Academic Articles
Time: Simple Pendulum and Ticker-Tape Timer - Physics Concept of Time and Ways of Measuring Time - Physics Concept of Direction: Scalars and Vectors - Physics Position, Distance and Displacement - Physics Fundamental, Derived and Supplementary Quantities and Units with Dimensions - Physics Measurement of Basic Quantities and Importance of Measurement in Physics - Physics Introduction to Physics: Definition, Branches, Importance and Scholars of Physics - Physics Chemistry Scheme of Work, SS1 Third Term - Chemistry Chemical Industries: Petrochemicals, Biodegradable, Non-biodegradable Wastes and Pollutants - Chemistry Chemical Industries: Types, Advantages, Disadvantages and Factors affecting Chemical Industries - Chemistry Hydrocarbons: Fractional Distillation of Crude oil and Uses of its Fractions - Chemistry Hydrocarbons: Sources, Classification and Test for Saturated and Unsaturated Hydrocarbons - Chemistry Trioxocarbonates: Preparation, Physical and Chemical Properties, Tests and Uses of Trioxocarbonates - Chemistry Carbon and its Compounds: Oxides of Carbon, Carbon(IV) oxide - Chemistry Carbon and its Compounds: Oxides of Carbon - Chemistry Amorphous Allotropes of Carbon - Chemistry Carbon: Structure and Allotropes of Carbon - Chemistry Salts in Chemistry: Types, Properties, and Uses of Salts - Chemistry Salts in Chemistry, their Classifications, Solubility, Preparations and Colors - Chemistry pH Indicators, Types of Indicators and Importance of pH and pOH - Chemistry Relative Acidity and Alkalinity (pH Scale), and Calculations on pH - Chemistry Bases and Alkalis: Definitions, Classification, Physical and Chemical Properties - Chemistry Bases: Preparation of Bases and Alkalis, Test and Uses - Chemistry Physical and Chemical Properties of Acids, Preparation, Test and Uses of Acids. - Chemistry Acid: Definition, Basicity, and Types of Acid - Chemistry Classifications of Drugs, Sources of Drugs and Drug Abuse - Basic Science Teeth, Structure of the Tooth, Dentition and Dental Care - Basic Science Balanced Diet, Classes of Food and their Importance - Basic Science Classes of Food, their Composition and Functions - Basic Science Nutrition: Types and Class of Food - Basic Science Cleanliness of parts of the body - Basic Science Family Health and Personal Cleanliness - Basic Science Behaviors and Feelings during Adolescence - Basic Science Pubertal changes in Boys and Girls - Basic Science Classification and Uses of Rubber - Basic Science Characteristics, Classification and Uses of Plastics - Basic Science Cement: Composition, Types and Uses of Cement - Basic Science Types, Properties and Uses of Ceramics - Basic Science Properties and Uses of Nonmetals - Basic Science Safety Devices: Examples and Uses of Safety Devices - Basic Science Accident Prevention Techniques and Safety Rules - Basic Science Safety Precautions for Pedestrians, Cyclists and Motorists - Basic Science Technology: Benefits of Technology - Basic Science Alloys: Types, Composition and Uses of Alloys - Basic Science Ferrous and Non-Ferrous Metals - Basic Science Metals and their Characteristics - Basic Science Cell Organelles and Differences between Plant and Animal Cell - Basic Science Importance of Animals and Plants to Humans - Basic Science Characteristics of Living Things - Basic Science Classification of Plants: Differences between Plants and Animals - Basic Science Living Things: Animals - Basic Science Change of State of Matter - Basic Science States of Matter - Basic Science Matter: Classification of Matter - Basic Science Basic Science Scheme of Work for JSS1, First Term - Basic Science PVS Examination for JSS1 First Term - Home Economics English Test for JSS1, First Term - English Business Studies Test For JSS1 First Term - Business Studies Linear Equation in Mathematics - Mathematics Word Problems leading to Algebraic Expression - Mathematics BODMAS in Algebra - Mathematics Multiplication and Division in Algebra - Mathematics Addition and Subtraction in Algebra - Mathematics Multiplication of Number Bases - Mathematics Subtraction of Number Bases - Mathematics Addition of Number Bases - Mathematics Division of Number Base - Mathematics Number Base Conversion - Mathematics Number Base System - Mathematics Significant Figures - Mathematics Rounding Off Numbers - Mathematics Decimal Place Value - Mathematics Fraction Word Problems - Mathematics Word Problems in Fraction - Mathematics Multiplication and Division of Fractions - Mathematics Addition and Subtraction of Fractions - Mathematics Expressing One Quantity as a Percentage of Another - Mathematics Expressing One Quantity as a Fraction of Another - Mathematics Percentage to Fraction and Fraction to Percentage Conversion - Mathematics Converting Fractions to Decimal - Mathematics Conversion of Decimals to Fractions - Mathematics Lowest Common Multiple - Mathematics Highest Common Factor - Mathematics Prime Factors and Index Notation - Mathematics Factors of Numbers - MathematicsAll Questions and Answers (with their explanations) are written by Alfred Ajibola
The above image shows the _____ in a computer.
A. Expansion slot
B. Hard Disc Drive
C. Optical Drive
D. Power Supply Unit
E. Motherboard
F. Synchronous Dynamic Ram
ICT
You need to be Registered or Logged in to see Answer and its Explanation
Please REGISTER HERE | LOGIN HERE
The clock speed of a computer is the speed at which the _____.
A. HDD saves data
B. FDS saves data
C. SSD saves data
D. GPU receives and sends data
E. CPU processes data
F. RAM transfers data
ICT
You need to be Registered or Logged in to see Answer and its Explanation
Please REGISTER HERE | LOGIN HERE
Which of the following statement is incorrect concerning computer hardware?
A. It is a collection of the physical parts of a computer
B. Computer hardware may also be referred to as the equipment of the computer
C. Hardware components seen outside the computer are called externals
D. The Northridge is a computer hardware present inside the computer
E. The Joystick is a computer hardware seen outside the computer
F. Solid State Drive is a computer hardware that stores data
ICT
You need to be Registered or Logged in to see Answer and its Explanation
Please REGISTER HERE | LOGIN HERE
The concept of Ceteris Paribus Assumption in economics states that _____.
A. Supply and Demand are antagonistic
B. When given two choice of similar products with the same price (assuming all other factors are constant), you will prefer to buy that with a lower price
C. Supply and Demand are agonistic
D. When given two choice of dissimilar products with the same price (assuming all other factors are constant), you will prefer to buy that which you need most
E. When given two choice of similar products with the different prices (assuming all other factors are constant), you will prefer to buy that with a lower price
F. When given two choice of dissimilar products with the different prices (assuming all other factors are constant), you will prefer to buy that with a lower price
Economics
You need to be Registered or Logged in to see Answer and its Explanation
Please REGISTER HERE | LOGIN HERE
The willingness of a person to buy a specific quantity of goods or services at a given price and time is termed _____.
A. Scale of preference
B. Economies of scale
C. Opportunity Cost
D. Cost
E. Supply
F. Demand
Economics
You need to be Registered or Logged in to see Answer and its Explanation
Please REGISTER HERE | LOGIN HERE
The snake in the garden of Eden began it's temptation on Eve by _____.
A. Telling her she would be wise
B. Telling her she won't die when she eats the fruit
C. Telling her she will be like God
D. Asking her a simple question
E. Showing her the beauty of the fruit
F. Suggesting that she doesn't know what she's missing
CRS
You need to be Registered or Logged in to see Answer and its Explanation
Please REGISTER HERE | LOGIN HERE
God knows all things, even your secret and deepest thoughts. This attribute of God is termed _____.
A. Omniscient
B. Self existence
C. Omnipotent
D. Wisdom
E. Omnipresent
F. Omniknowledge
CRS
You need to be Registered or Logged in to see Answer and its Explanation
Please REGISTER HERE | LOGIN HERE
The following statements are true concerning transportation except _____.
A. Transportation is defined as the movement of goods, persons and animals from one point to another.
B. Means of transportation is not the same thing as Mode of transportation
C. Land transportation is a means of transportation
D. Rail transportation is a type of land transport
E. Pipeline typically transports liquid and gaseous products
F. Human porterage is an ancient mode of transportation
Social Studies
You need to be Registered or Logged in to see Answer and its Explanation
Please REGISTER HERE | LOGIN HERE
The following are consequences of cultism except _____.
A. Untimely death of members
B. They become feared by everyone
C. Expulsion of students involved in cultism from secondary and tertiary educational institutions
D. A cultist may go mad due to their brutal initiation processes
E. Cultists may end up as assassins, hired killers and robbers
F. They may end up bringing disgrace to themselves, their loved ones and families
Civic Education
You need to be Registered or Logged in to see Answer and its Explanation
Please REGISTER HERE | LOGIN HERE
Heat can be created.
A. True
B. False
Physics
You need to be Registered or Logged in to see Answer and its Explanation
Please REGISTER HERE | LOGIN HERE
Temperature is defined as the measure or ability of an object or substance to transfer heat energy to another object or substance.
A. True
B. False
Physics
You need to be Registered or Logged in to see Answer and its Explanation
Please REGISTER HERE | LOGIN HERE
Which of the following statement is incorrect concerning gravity?
A. It is a natural force of attraction
B. The earth is spherical in shape and we don't fall off it due to gravity
C. The amount of gravity is the same all around the spherical earth
D. Earth's gravity affects the satellites
E. Gravity is affected by size and closeness of objects
F. In an ideal space environment, gravity is absent
Physics
You need to be Registered or Logged in to see Answer and its Explanation
Please REGISTER HERE | LOGIN HERE
Which of the following is not a type of angle?
A. Right angle
B. Left Angle
C. Acute Angle
D. Complete Angle
E. Straight Angle
F. Reflex angle
Mathematics
You need to be Registered or Logged in to see Answer and its Explanation
Please REGISTER HERE | LOGIN HERE
The plural form of Governor-General is _____.
A. Governor-General
B. Governor-Generals
C. Governors-Generals
D. Governors-General
C. Governor-Generals'
D. Governor's-General
English
You need to be Registered or Logged in to see Answer and its Explanation
Please REGISTER HERE | LOGIN HERE
The above image is a _____.
A. Hammer
B. Crowbar
C. Shear
D. Secateur
E. Bolo
F. Mallet
Agricultural Science
You need to be Registered or Logged in to see Answer and its Explanation
Please REGISTER HERE | LOGIN HERE
The agricultural tool shown in the image (above) is used for the followings except _____.
A. For cutting tree branches, weeds, and other plant materials in farmland
B. To remove dirts from the top soil
C. For harvesting crops like sugarcane
D. To clear bushes
E. For planting crops like melon
F. To dig superficial holes for the planting of seeds
Agricultural Science
You need to be Registered or Logged in to see Answer and its Explanation
Please REGISTER HERE | LOGIN HERE
Which of the following is not a type of maintenance?
A. Fixated
B. Overhaul
C. Predictive
D. Reinforcement
E. Periodic
F. Corrective
Basic Technology
You need to be Registered or Logged in to see Answer and its Explanation
Please REGISTER HERE | LOGIN HERE
Which of the following is incorrect concerning preventive maintenance?
A. It is considered to be the best form of maintenance
B. Immunization is a form of preventive maintenance
C. Worn out parts may be discovered when preventive maintenance is carried out
D. Preventive maintenance is defined as the repairs carried out on an equipment or object after a correct prediction of an impending fault
E. A person who services his car monthly practices preventive maintenance (even though the car functions properly)
F. The main goal of preventive maintenance is to stop a device from breaking down suddenly
Basic Technology
You need to be Registered or Logged in to see Answer and its Explanation
Please REGISTER HERE | LOGIN HERE
The interface forming a boundary between the stratosphere and mesosphere is termed _____.
A. Mesoface
B. Mesopause
C. Mesostart
D. Stratoface
F. Stratopause
F. Stratostart
Geography
You need to be Registered or Logged in to see Answer and its Explanation
Please REGISTER HERE | LOGIN HERE
Which layer of atmosphere is closest to the earth?
A. Thermosphere
B. Mesosphere
C. Stratosphere
D. Ionosphere
E. Troposphere
F. Exosphere
Geography
You need to be Registered or Logged in to see Answer and its Explanation
Please REGISTER HERE | LOGIN HERE
Total Questions (449) Paged
Page (12 of 23)
Motivational Quotes
Too often we underestimate the power of a touch, a smile, a kind word, a listening ear, an honest compliment, or the smallest act of caring, all of which have the potential to turn a life around - Leo Buscaglia
The most important things we can give to others are actually not expensive. In fact, we don't have to buy them with money because they are right within us.
These include our kind words, listening ears, honest compliments, our 'thank you', those beautiful smiles, our loving corrections, sincere kindness and a caring heart
In the end, it isn't the years in your life that count. It is the life in your years - Abraham Lincoln
One fact remains constant to us all, and that's death. We are not guaranteed of tomorrow because no living human is too old to die, even a newly born. Remember, age is also a number.
Therefore, let us always do good, help the poor, care for the sick and less privileged, forgive transgressions and most importantly, extend the hands of love to everyone we come across.
By doing this, we would have added an abundance of life to our years, regardless its number. Recall that Jesus Christ Himself died at 33
You cannot win everytime. This therefore makes defeat a part of life. However, it is the way and manner at which we rise from our defeats that determines our place among the greats.
Muhammad Ali was a professional boxer with 56 wins and 5 defeats. However, the way and manner at which he rose from his defeats secured his place in boxing history as the greatest fighter of all time
One Day or Day One, you decide - Unknown
We all intend to become great in life. However, we should also understand that it doesn't take one day to become great. Rather it takes many days of work, practice, diligence, failures and successes to become great.
My question to you is this: Concerning your path to greatness, what day are you in?
Whatever you are, be a good one - Abraham Lincoln
If you are a boy, be a good boy. If you are a girl, be a good girl. If you are a man, be a good man. If you are a woman, be a good woman. If you are a student, be a good student. If you are a teacher, be a good teacher.
I can go on and on; but the point is: You are human, so do all in your power to be a good human
The first problem for all of us, men and women, is not to learn, but to unlearn - Gloria Steinem
The act of unlearning is an excellent form of learning. Infact, you will need the skills of unlearning if you intend to become an expert in your desired field.
Do yourself a favor by unlearning, learning and re-learning on a daily basis
If you don't design your own life plan, chances are you'll fall into someone else's plan. And guess what they have planned for you? Not much - Jim Rohn
There's something special about you. It doesn't matter whether you work for a company or someone; what matters is the amount of investment you've made on yourself.
Investing in yourself is the best life plan you can design for your future
Peace begins with a smile - Mother Teresa
Never underestimate the power of your smile. It can lift up the depressed, improve the mood of the downtrodden and even discourage a suicidal attack. Also remember that your smile makes you more beautiful
Smile always for your own good and the good of others
The only person who is educated is the one who has learned how to learn …and change - Carl Rogers
To perfect your learning process, you must learn, unlearn and re-learn. Infact, we all need to learn how to unlearn those vices we know about ourselves.
Do you know that seeing the devastating consequences of vices (perhaps in movies or real-life) can initiate the unlearning processes in one who does such?
Start where you are. Use what you have. Do what you can - Arthur Ashe
Start now. You've got all it takes to achieve greatness, so no environment can limit you. Just begin something, give in your best and don't stop.
Remember, don't stop giving your best if you truly desire greatness. Nothing can stop you except yourself
He who opens a school door, closes a prison - Victor Hugo
Education goes beyond the four walls of the classroom. Always attempt to promote education at every chance you've got. Begin with your family, friends and those you interact with. In addition, do not forget to educate others with your words and actions.
Close a prison door by sponsoring the education of someone in your lifetime