Daily Practice

Q1. Convert 7/8 into an equivalent fraction with denominator 40.📘 Ch. 7 — Fractions📕 KV Academy Original

Q2. A rectangle is 16 cm long and 9 cm wide. Find its area.📘 Ch. 6 — Perimeter and Area📕 KV Academy Original

Q3. Find the greatest common factor of 36 and 48.📘 Ch. 5 — Prime Time📕 KV Academy Original

Q4. Find the mean of 6, 9, 7, 10 and 8.📘 Ch. 4 — Data Handling and Presentation📕 KV Academy Original

Q5. An angle is 37°. Find its complement.📘 Ch. 2 — Lines and Angles📕 KV Academy Original

Q6. A ribbon 3/4 m long is cut into 3 equal pieces. Find the length of each piece.📘 Ch. 7 — Fractions📕 KV Academy Original

Q7. A square has area 144 cm². Find its perimeter.📘 Ch. 6 — Perimeter and Area📕 KV Academy Original

Q8. Find the least number divisible by both 12 and 18.📘 Ch. 5 — Prime Time📕 KV Academy Original

Q9. The mean of four numbers is 15. Three are 11, 14 and 17. Find the fourth.📘 Ch. 4 — Data Handling and Presentation📕 KV Academy Original

Q10. Riya ate 2/5 of a cake and her brother ate 1/4. What fraction remains?📘 Ch. 7 — Fractions📕 KV Academy Original

Q1. Give one example each of a soluble and an insoluble substance in water.📘 Ch. 6 — Materials Around Us📕 KV Academy Original

Q2. What is the difference between heat and temperature?📘 Ch. 7 — Temperature and its Measurement📕 KV Academy Original

Q3. A runner covers 240 m in 30 s. Find the speed.📘 Ch. 5 — Measurement of Length and Motion📕 KV Academy Original

Q4. What happens when two like poles of magnets are brought together?📘 Ch. 4 — Exploring Magnets📕 KV Academy Original

Q5. Name two nutrients needed for a balanced diet.📘 Ch. 3 — Mindful Eating: A Path to a Healthy Body📕 KV Academy Original

Q6. Why is copper commonly used for electrical wires?📘 Ch. 6 — Materials Around Us📕 KV Academy Original

Q7. Why should a clinical thermometer not be used to measure boiling water?📘 Ch. 7 — Temperature and its Measurement📕 KV Academy Original

Q8. A cyclist travels 1.2 km in 4 minutes. Find the speed in m/s.📘 Ch. 5 — Measurement of Length and Motion📕 KV Academy Original

Q9. Explain why a compass needle can be used to find direction.📘 Ch. 4 — Exploring Magnets📕 KV Academy Original

Q10. Why is a diet rich in carbohydrates but poor in protein and vitamins not balanced?📘 Ch. 3 — Mindful Eating: A Path to a Healthy Body📕 KV Academy Original

Q1. Find the next two terms: 5, 11, 19, 29, 41, …📘 Ch. 3 — A Peek Beyond The Point📕 KV Academy Original

Q2. Write 8,04,30,205 in expanded form.📘 Ch. 1 — Large Numbers Around Us📕 KV Academy Original

Q3. Simplify: 7 + 3(8 − 5).📘 Ch. 2 — Arithmetic Expressions📕 KV Academy Original

Q4. Find the 8th term of the pattern n² + 1.📘 Ch. 3 — A Peek Beyond The Point📕 KV Academy Original

Q5. Round 7,46,52,381 to the nearest ten lakh.📘 Ch. 1 — Large Numbers Around Us📕 KV Academy Original

Q6. If a = −5, find 2a − 7.📘 Ch. 2 — Arithmetic Expressions📕 KV Academy Original

Q7. Find a rule for the sequence 2, 5, 10, 17, 26.📘 Ch. 3 — A Peek Beyond The Point📕 KV Academy Original

Q8. Solve: 4x + 9 = 29.📘 Ch. 2 — Arithmetic Expressions📕 KV Academy Original

Q9. A city has 4,85,000 people. Its population increases by 27,500. Find the new population.📘 Ch. 1 — Large Numbers Around Us📕 KV Academy Original

Q10. A number is multiplied by 3 and then decreased by 8 to give 25. Find the number.📘 Ch. 3 — A Peek Beyond The Point📕 KV Academy Original

Q1. What is the function of a cell in an electric circuit?📘 Ch. 3 — Electricity: Circuits and Their Components📕 KV Academy Original

Q2. Name one natural indicator.📘 Ch. 2 — Exploring Substances: Acidic, Basic, and Neutral📕 KV Academy Original

Q3. What is meant by a closed circuit?📘 Ch. 3 — Electricity: Circuits and Their Components📕 KV Academy Original

Q4. What happens to red litmus in a basic solution?📘 Ch. 2 — Exploring Substances: Acidic, Basic, and Neutral📕 KV Academy Original

Q5. Why does a bulb not glow in an open circuit?📘 Ch. 3 — Electricity: Circuits and Their Components📕 KV Academy Original

Q6. Give one example of a neutral substance.📘 Ch. 2 — Exploring Substances: Acidic, Basic, and Neutral📕 KV Academy Original

Q7. Describe a circuit containing two cells, a switch and a bulb in which the bulb glows.📘 Ch. 3 — Electricity: Circuits and Their Components📕 KV Academy Original

Q8. Explain neutralisation using an everyday example.📘 Ch. 2 — Exploring Substances: Acidic, Basic, and Neutral📕 KV Academy Original

Q9. Why can a damaged wire make a circuit unsafe?📘 Ch. 3 — Electricity: Circuits and Their Components📕 KV Academy Original

Q10. A solution changes blue litmus to red. What can you conclude?📘 Ch. 2 — Exploring Substances: Acidic, Basic, and Neutral📕 KV Academy Original

Q1. Expand: 6(2x + 5).📘 Ch. 6 — We Distribute, Yet Things Multiply📕 KV Academy Original

Q2. Three angles of a quadrilateral are 72°, 108° and 95°. Find the fourth.📘 Ch. 4 — Quadrilaterals📕 KV Academy Original

Q3. Simplify: 5³ ÷ 5.📘 Ch. 2 — Power Play📕 KV Academy Original

Q4. Between which two integers does √70 lie?📘 Ch. 3 — A Story of Numbers📕 KV Academy Original

Q5. Find the remainder when 845 is divided by 9.📘 Ch. 5 — Number Play📕 KV Academy Original

Q6. Simplify: 4(3x − 2) − 2(x + 5).📘 Ch. 6 — We Distribute, Yet Things Multiply📕 KV Academy Original

Q7. If one half of a diagonal of a parallelogram is 7 cm, find the whole diagonal.📘 Ch. 4 — Quadrilaterals📕 KV Academy Original

Q8. Express 0.0000048 in scientific notation.📘 Ch. 2 — Power Play📕 KV Academy Original

Q9. Use an identity to find 103².📘 Ch. 3 — A Story of Numbers📕 KV Academy Original

Q10. If 5(2x−1)=3x+23, find x.📘 Ch. 6 — We Distribute, Yet Things Multiply📕 KV Academy Original

Q1. Name one celestial object used traditionally for tracking time.📘 Ch. 11 — Keeping Time with the Skies📕 KV Academy Original

Q2. Give one example of an element and one compound.📘 Ch. 8 — Nature of Matter: Elements, Compounds, and Mixtures📕 KV Academy Original

Q3. Why can gases be compressed easily?📘 Ch. 7 — Particulate Nature of Matter📕 KV Academy Original

Q4. How is pressure calculated?📘 Ch. 6 — Pressure, Winds, Storms, and Cyclones📕 KV Academy Original

Q5. What is friction?📘 Ch. 5 — Exploring Forces📕 KV Academy Original

Q6. Why does the apparent position of the Sun change during the day?📘 Ch. 11 — Keeping Time with the Skies📕 KV Academy Original

Q7. How would you separate sand and salt from a mixture?📘 Ch. 8 — Nature of Matter: Elements, Compounds, and Mixtures📕 KV Academy Original

Q8. Why are roofs sometimes blown away during a cyclone?📘 Ch. 6 — Pressure, Winds, Storms, and Cyclones📕 KV Academy Original

Q9. Why does a rough surface generally produce more friction than a smooth surface?📘 Ch. 5 — Exploring Forces📕 KV Academy Original

Q10. Explain how changing shadows can help estimate time.📘 Ch. 11 — Keeping Time with the Skies📕 KV Academy Original

Q1. Simplify: √50 + √8.📘 Ch. 3 — The World of Numbers📕 KV Academy Original

Q2. State the quadrant of (−6, 4).📘 Ch. 1 — Orienting Yourself: The Use of Coordinates📕 KV Academy Original

Q3. Find the zero of 9x − 27.📘 Ch. 2 — Introduction to Linear Polynomials📕 KV Academy Original

Q4. Express 0.72 as a fraction in lowest terms.📘 Ch. 3 — The World of Numbers📕 KV Academy Original

Q5. Find the distance between (−2, 3) and (4, 3).📘 Ch. 1 — Orienting Yourself: The Use of Coordinates📕 KV Academy Original

Q6. If p(x)=7x−4, find p(−2).📘 Ch. 2 — Introduction to Linear Polynomials📕 KV Academy Original

Q7. Prove that √5 is irrational.📘 Ch. 3 — The World of Numbers📕 KV Academy Original

Q8. Find the midpoint of (−4, 7) and (6, −1).📘 Ch. 1 — Orienting Yourself: The Use of Coordinates📕 KV Academy Original

Q9. A linear polynomial has zero 3 and value 10 at x=1. Find it.📘 Ch. 2 — Introduction to Linear Polynomials📕 KV Academy Original

Q10. Find x if √(x+4)=5.📘 Ch. 3 — The World of Numbers📕 KV Academy Original

Q1. Name the plant tissue that transports water.📘 Ch. 3 — Tissues in Action📕 KV Academy Original

Q2. Define acceleration.📘 Ch. 4 — Describing Motion Around Us📕 KV Academy Original

Q3. State Newton's first law in words.📘 Ch. 6 — How Forces Affect Motion📕 KV Academy Original

Q4. Write the formula for work done when force and displacement are in the same direction.📘 Ch. 7 — Work, Energy, and Simple Machines📕 KV Academy Original

Q5. Name a method for separating an insoluble solid from a liquid.📘 Ch. 5 — Exploring Mixtures and their Separation📕 KV Academy Original

Q6. What is the main function of epithelial tissue?📘 Ch. 3 — Tissues in Action📕 KV Academy Original

Q7. A car changes velocity from 5 m/s to 25 m/s in 4 s. Find acceleration.📘 Ch. 4 — Describing Motion Around Us📕 KV Academy Original

Q8. Why does a passenger jerk backward when a bus starts suddenly?📘 Ch. 6 — How Forces Affect Motion📕 KV Academy Original

Q9. A 40 N force moves a box 3 m in its direction. Find the work done.📘 Ch. 7 — Work, Energy, and Simple Machines📕 KV Academy Original

Q10. Describe a method to obtain pure water from salt solution.📘 Ch. 5 — Exploring Mixtures and their Separation📕 KV Academy Original

Q1. If two similar triangles have corresponding sides in ratio 4:7, find the ratio of their areas.📘 Ch. 6 — Triangles📕 KV Academy Original

Q2. Find HCF of 252 and 198 using Euclid's algorithm.📘 Ch. 1 — Real Numbers📕 KV Academy Original

Q3. Find the zeros of x²−9x+18.📘 Ch. 2 — Polynomials📕 KV Academy Original

Q4. Solve: x+y=9 and x−y=3.📘 Ch. 3 — Pair of Linear Equations in Two Variables📕 KV Academy Original

Q5. Find the discriminant of 3x²−5x+2.📘 Ch. 4 — Quadratic Equations📕 KV Academy Original

Q6. Find the 18th term of 5, 9, 13, ….📘 Ch. 5 — Arithmetic Progressions📕 KV Academy Original

Q7. Find the distance between (1,−2) and (7,6).📘 Ch. 7 — Coordinate Geometry📕 KV Academy Original

Q8. If cos θ=12/13 for acute θ, find sin θ.📘 Ch. 8 — Introduction to Trigonometry📕 KV Academy Original

Q9. From a point 15 m from the foot of a tower, the angle of elevation is 60°. Find the height.📘 Ch. 9 — Some Applications of Trigonometry📕 KV Academy Original

Q10. A cylinder has radius 7 cm and height 10 cm. Find its curved surface area.📘 Ch. 12 — Surface Areas and Volumes📕 KV Academy Original

Q1. State the relationship between potential difference, current and resistance.📘 Ch. 11 — Electricity📕 KV Academy Original

Q2. What is a trophic level?📘 Ch. 13 — Our Environment📕 KV Academy Original

Q3. Which mirror is used as a rear-view mirror in vehicles?📘 Ch. 9 — Light – Reflection and Refraction📕 KV Academy Original

Q4. Name the hormone responsible for regulating blood sugar.📘 Ch. 6 — Control and Coordination📕 KV Academy Original

Q5. Where does aerobic respiration mainly occur in a cell?📘 Ch. 5 — Life Processes📕 KV Academy Original

Q6. Why are ionic compounds generally hard?📘 Ch. 3 — Metals and Non-metals📕 KV Academy Original

Q7. A 10 Ω resistor carries 2 A current. Find the potential difference.📘 Ch. 11 — Electricity📕 KV Academy Original

Q8. An object is placed between F and 2F of a convex lens. State the nature of the image.📘 Ch. 9 — Light – Reflection and Refraction📕 KV Academy Original

Q9. Explain why decomposers are essential for maintaining nutrient cycles.📘 Ch. 13 — Our Environment📕 KV Academy Original

Q10. Explain how a reflex arc helps the body respond quickly.📘 Ch. 6 — Control and Coordination📕 KV Academy Original

Q1. If P(A)=0.28, find P(A').📘 Ch. 9 — Probability📕 KV Academy Original

Q2. Find 7P3.📘 Ch. 6 — Permutations and Combinations📕 KV Academy Original

Q3. Find the 16th term of the AP 6, 10, 14, ….📘 Ch. 5 — Sequences and Series📕 KV Academy Original

Q4. Find the domain and range of {(2,5),(4,7),(6,9)}.📘 Ch. 4 — Relations📕 KV Academy Original

Q5. If A={1,3,5} and B={3,5,7}, find A∩B.📘 Ch. 3 — Set📕 KV Academy Original

Q6. A fair die is thrown once. Find the probability of getting a number greater than 4.📘 Ch. 9 — Probability📕 KV Academy Original

Q7. How many 3-letter arrangements can be made from 6 distinct letters without repetition?📘 Ch. 6 — Permutations and Combinations📕 KV Academy Original

Q8. Find the sum of the first 15 terms of 4, 7, 10, ….📘 Ch. 5 — Sequences and Series📕 KV Academy Original

Q9. Check whether R={(1,1),(2,2),(1,2),(2,1)} on {1,2} is symmetric.📘 Ch. 4 — Relations📕 KV Academy Original

Q10. Two fair dice are thrown. Find the probability that the sum is 8.📘 Ch. 9 — Probability📕 KV Academy Original

Q1. Name the four fundamental interactions of nature.📘 Ch. 1 — Physical World📕 KV Academy Original

Q2. Why are measurements essential in physics?📘 Ch. 1 — Physical World📕 KV Academy Original

Q3. Give one example of physics contributing to medical technology.📘 Ch. 1 — Physical World📕 KV Academy Original

Q4. Distinguish between fundamental and derived quantities.📘 Ch. 1 — Physical World📕 KV Academy Original

Q5. Why is a physical law expressed using mathematical relationships?📘 Ch. 1 — Physical World📕 KV Academy Original

Q6. Give one example of a phenomenon explained by physics at microscopic scale.📘 Ch. 1 — Physical World📕 KV Academy Original

Q7. Explain why units must be standardised.📘 Ch. 1 — Physical World📕 KV Academy Original

Q8. What role do experiments play in validating a physical theory?📘 Ch. 1 — Physical World📕 KV Academy Original

Q9. Give one example of the link between physics and engineering.📘 Ch. 1 — Physical World📕 KV Academy Original

Q10. Why can a model be useful even when it does not represent every detail of reality?📘 Ch. 1 — Physical World📕 KV Academy Original

Q1. Define molarity.📘 Ch. 1 — Some Basic Concepts of Chemistry📕 KV Academy Original

Q2. State Avogadro's constant.📘 Ch. 1 — Some Basic Concepts of Chemistry📕 KV Academy Original

Q3. Find the molar mass of CaCO₃.📘 Ch. 1 — Some Basic Concepts of Chemistry📕 KV Academy Original

Q4. How many moles are present in 18 g of H₂O?📘 Ch. 1 — Some Basic Concepts of Chemistry📕 KV Academy Original

Q5. What is meant by a limiting reagent?📘 Ch. 1 — Some Basic Concepts of Chemistry📕 KV Academy Original

Q6. Differentiate empirical formula and molecular formula.📘 Ch. 1 — Some Basic Concepts of Chemistry📕 KV Academy Original

Q7. Calculate the number of molecules in 0.25 mol CO₂.📘 Ch. 1 — Some Basic Concepts of Chemistry📕 KV Academy Original

Q8. Why must chemical equations be balanced?📘 Ch. 1 — Some Basic Concepts of Chemistry📕 KV Academy Original

Q9. 2 mol H₂ reacts with 1 mol O₂. If 3 mol H₂ and 1 mol O₂ are taken, identify the limiting reagent.📘 Ch. 1 — Some Basic Concepts of Chemistry📕 KV Academy Original

Q10. A compound contains 52.17% C, 13.04% H and 34.79% O. Find its empirical formula.📘 Ch. 1 — Some Basic Concepts of Chemistry📕 KV Academy Original

Q1. Evaluate ∫(3x²−4x+2) dx.📘 Ch. 7 — Integrals📕 KV Academy Original

Q2. Find the critical points of f(x)=x²−8x+7.📘 Ch. 6 — Applications of Derivatives📕 KV Academy Original

Q3. Check differentiability of f(x)=|x−2| at x=2.📘 Ch. 5 — Continuity and Differentiability📕 KV Academy Original

Q4. Evaluate |4 3; 2 5|.📘 Ch. 4 — Determinants📕 KV Academy Original

Q5. If A is a 3×2 matrix, what is the order of Aᵀ?📘 Ch. 3 — Matrices📕 KV Academy Original

Q6. Find the principal value of sin⁻¹(−1/2).📘 Ch. 2 — Inverse Trigonometric Functions📕 KV Academy Original

Q7. Determine whether f(x)=x³−x is one-one on R.📘 Ch. 1 — Relations and Functions📕 KV Academy Original

Q8. Evaluate ∫₀² (x+1) dx.📘 Ch. 7 — Integrals📕 KV Academy Original

Q9. Find the intervals on which f(x)=x³−3x²−9x+2 is increasing.📘 Ch. 6 — Applications of Derivatives📕 KV Academy Original

Q10. Evaluate ∫ dx/(x²+9).📘 Ch. 7 — Integrals📕 KV Academy Original

Q1. Define electric potential difference.📘 Ch. 2 — Electrostatic Potential and Capacitance📕 KV Academy Original

Q2. State Coulomb's law.📘 Ch. 1 — Electric Charges and Fields📕 KV Academy Original

Q3. Write the expression for energy stored in a capacitor.📘 Ch. 2 — Electrostatic Potential and Capacitance📕 KV Academy Original

Q4. Define electric flux.📘 Ch. 1 — Electric Charges and Fields📕 KV Academy Original

Q5. What happens to capacitance when a dielectric is inserted between the plates?📘 Ch. 2 — Electrostatic Potential and Capacitance📕 KV Academy Original

Q6. Why is the electric field inside an electrostatic conductor zero?📘 Ch. 1 — Electric Charges and Fields📕 KV Academy Original

Q7. A 5 μF capacitor is connected to 20 V. Find the charge stored.📘 Ch. 2 — Electrostatic Potential and Capacitance📕 KV Academy Original

Q8. Two equal positive charges are placed symmetrically about a point. What is the field at the midpoint?📘 Ch. 1 — Electric Charges and Fields📕 KV Academy Original

Q9. Explain why equipotential surfaces are perpendicular to electric field lines.📘 Ch. 2 — Electrostatic Potential and Capacitance📕 KV Academy Original

Q10. Derive the relation between charge, capacitance and potential difference.📘 Ch. 2 — Electrostatic Potential and Capacitance📕 KV Academy Original

Q1. Define standard electrode potential.📘 Ch. 2 — Electrochemistry📕 KV Academy Original

Q2. State Raoult's law.📘 Ch. 1 — Solutions📕 KV Academy Original

Q3. What is the function of a salt bridge?📘 Ch. 2 — Electrochemistry📕 KV Academy Original

Q4. Define molality.📘 Ch. 1 — Solutions📕 KV Academy Original

Q5. State the SI unit of conductivity.📘 Ch. 2 — Electrochemistry📕 KV Academy Original

Q6. Why does vapour pressure decrease when a non-volatile solute is added?📘 Ch. 1 — Solutions📕 KV Academy Original

Q7. Why does molar conductivity increase on dilution?📘 Ch. 2 — Electrochemistry📕 KV Academy Original

Q8. Calculate molarity when 0.3 mol solute is present in 750 mL solution.📘 Ch. 1 — Solutions📕 KV Academy Original

Q9. State the relation between ΔG° and E°cell.📘 Ch. 2 — Electrochemistry📕 KV Academy Original

Q10. Explain the difference between an ideal and a non-ideal solution.📘 Ch. 1 — Solutions📕 KV Academy Original