Q1. What is a number system?
A. A number system is a way to represent and work with numbers.
Q2. What are real numbers?
A. Numbers that include rational and irrational numbers.
Q3. What is a rational number?
A. A number that can be written in the form p/q where q ≠ 0.
Q4. What is an irrational number?
A. A number that cannot be expressed as a fraction.
Q5. What is a terminating decimal?
A. A decimal that ends after a finite number of digits.
Q6. What is a polynomial?
A. An algebraic expression made of variables and constants.
Q7. What is the degree of a polynomial?
A. The highest power of the variable in the polynomial.
Q8. What is a linear polynomial?
A. A polynomial with degree 1.
Q9. What is a quadratic polynomial?
A. A polynomial with degree 2.
Q10. What is a linear equation in two variables?
A. An equation of the form ax + by + c = 0.
Q11. What is the graphical method?
A. A method to solve equations by plotting graphs.
Q12. What is Euclid’s division algorithm?
A. A method to find the HCF of two numbers.
Q13. What is factorization?
A. Writing a number or expression as a product of factors.
Q14. What is geometry?
A. The branch of mathematics dealing with shapes and sizes.
Q15. What is a point?
A. An exact position in space with no dimensions.
Q16. What is a line segment?
A. A part of a line with two endpoints.
Q17. What is an angle?
A. The figure formed by two rays with a common endpoint.
Q18. What is a triangle?
A. A polygon with three sides.
Q19. Types of triangles?
A. Equilateral, isosceles, scalene.
Q20. What is Pythagoras theorem?
A. In a right triangle, square of hypotenuse equals sum of squares of other two sides.
Q21. What is a circle?
A. A set of points equidistant from a fixed point.
Q22. What is radius?
A. Distance from center to any point on the circle.
Q23. What is diameter?
A. Twice the radius of a circle.
Q24. What is surface area?
A. The total area covering the surface of a solid.
Q25. What is volume?
A. The space occupied by a solid object.
Q26. What is statistics?
A. The study of collection and analysis of data.
Q27. What is mean?
A. Average of given observations.
Q28. What is probability?
A. The chance of an event occurring.
Q29. What is a linear equation?
A. A linear equation is an equation of the first degree that forms a straight line when graphed.
Q30. What is the Pythagorean theorem?
A. In a right triangle, the square of the hypotenuse equals the sum of the squares of the other two sides.
Q31. What is a function?
A. A function is a relationship where each input has exactly one output.
Q1. What is force?
A. Force is a push or pull that can change the motion of an object.
Q2. What is energy?
A. Energy is the ability to do work.
Q3. What is velocity?
A. Velocity is speed in a specific direction.
Q1. What is an element?
A. An element is a pure substance made of only one type of atom.
Q2. What is a chemical reaction?
A. A chemical reaction is a process where substances change into new substances.
Q3. What is the pH scale?
A. The pH scale measures how acidic or basic a substance is.
Q1. What is a cell?
A. A cell is the basic unit of life.
Q2. What is photosynthesis?
A. Photosynthesis is the process by which plants make food using sunlight.
Q3. What is the human circulatory system?
A. It is the system that transports blood, oxygen, and nutrients throughout the body.
Q1. What is a noun?
A. A noun is a word that names a person, place, thing, or idea.
Q2. What is a metaphor?
A. A metaphor is a figure of speech that compares two things without using 'like' or 'as'.
Q3. What is a paragraph?
A. A paragraph is a group of sentences about a single idea.
Q1. What is climate?
A. Climate is the average weather condition of a place over a long period.
Q2. What is a continent?
A. A continent is a large landmass on Earth.
Q3. What is population density?
A. Population density is the number of people living per unit area.
Q1. What was the Industrial Revolution?
A. It was a period of major industrial and technological development.
Q2. What is a civilization?
A. A civilization is an advanced society with organized culture and government.
Q3. What is World War I?
A. A global war fought from 1914 to 1918 involving many nations.
Q1. What is a cell?
A. A cell is the basic structural and functional unit of life.
Q2. What is the difference between plant cells and animal cells?
A. Plant cells have a cell wall and chloroplast, while animal cells do not.
Q3. What is a tissue?
A. A tissue is a group of similar cells that perform a specific function.
Q4. What is motion?
A. Motion is the change in position of an object with time.
Q5. What is speed?
A. Speed is the distance travelled by an object per unit time.
Q6. What is velocity?
A. Velocity is the speed of an object in a particular direction.
Q7. What is force?
A. Force is a push or pull that can change the state of motion of an object.
Q8. What is Newton’s First Law of Motion?
A. An object remains at rest or in uniform motion unless acted upon by an external force.
Q9. What is work?
A. Work is done when a force causes displacement of an object.
Q10. What is energy?
A. Energy is the capacity to do work.
Q11. What is the law of conservation of energy?
A. Energy can neither be created nor destroyed, only transformed from one form to another.
Q12. What is matter?
A. Matter is anything that has mass and occupies space.
Q13. What are the three states of matter?
A. Solid, liquid, and gas.
Q14. What is evaporation?
A. Evaporation is the process by which a liquid changes into vapour at any temperature below its boiling point.
Q15. What is an atom?
A. An atom is the smallest unit of an element that retains its chemical properties.
Q16. What is a molecule?
A. A molecule is a group of two or more atoms chemically bonded together.
Q17. What is photosynthesis?
A. Photosynthesis is the process by which green plants make their food using sunlight, carbon dioxide, and water.
Q18. What is respiration?
A. Respiration is the process of breaking down food to release energy.
Q19. What is natural resource?
A. Natural resources are materials obtained from nature that are useful to humans.
Q20. What is pollution?
A. Pollution is the contamination of the environment by harmful substances.
Q1. What is a computer?
A. An electronic device that processes data and produces meaningful information.
Q2. What is data?
A. Raw facts and figures.
Q3. What is information?
A. Processed data that is meaningful.
Q4. What are the main components of a computer?
A. Input device, CPU, and Output device.
Q5. What is CPU?
A. Central Processing Unit, the brain of the computer.
Q6. What are the parts of CPU?
A. ALU, Control Unit, and Registers.
Q7. What is ALU?
A. Arithmetic Logic Unit performs calculations and logical operations.
Q8. What is hardware?
A. Physical components of a computer.
Q9. What is software?
A. Set of instructions that tell the computer what to do.
Q10. What is system software?
A. Software that controls computer operations.
Q11. What is application software?
A. Software designed for user tasks.
Q12. Example of system software?
A. Windows, Linux.
Q13. Example of application software?
A. MS Word, Excel.
Q14. What is operating system?
A. Software that manages hardware and software resources.
Q15. What is memory?
A. Storage area of a computer.
Q16. What is primary memory?
A. Main memory used during processing.
Q17. What is secondary memory?
A. Permanent storage devices.
Q18. Example of primary memory?
A. RAM, ROM.
Q19. Example of secondary memory?
A. Hard disk, Pen drive.
Q20. What is RAM?
A. Volatile memory used for temporary storage.
Q21. What is ROM?
A. Non-volatile memory that stores permanent data.
Q22. What is input device?
A. Device used to enter data into computer.
Q23. What is output device?
A. Device that displays result.
Q24. Example of input device?
A. Keyboard, Mouse.
Q25. Example of output device?
A. Monitor, Printer.
Q26. What is software piracy?
A. Illegal copying of software.
Q27. What is computer virus?
A. Malicious program that harms computer.
Q28. What is antivirus?
A. Software that removes viruses.
Q29. What is internet?
A. Global network of computers.
Q30. What is email?
A. Electronic mail used to send messages.
Q31. What is WWW?
A. World Wide Web, collection of web pages.
Q32. What is browser?
A. Software used to access internet.
Q33. Example of browser?
A. Google Chrome, Firefox.
Q34. What is cyber crime?
A. Crime committed using computers.
Q35. What is cyber safety?
A. Safe use of internet and computers.