11th First Revision Test Question Paper 2020

The 11th first revision test 2020 covers a wide range of subjects, including core topics such as Mathematics, Physics, Chemistry, Biology, and others. This article provides a collection of important questions and their corresponding answers for each subject, ensuring thorough preparation for the revision test. Each subject has at least 20 questions and answers, designed to help students practice effectively and understand key concepts.

Physics :

Question: State Newton’s First Law of Motion.

Answer: An object will remain at rest or in uniform motion unless acted upon by an external force.

Question: What is the SI unit of force?

Answer: The SI unit is Newton (N).

Question: Define kinetic energy.

Answer: Kinetic energy is the energy possessed by an object due to its motion, KE=(mv^2)/2

Question: What is the speed of light in a vacuum?

Answer: The speed is approximately 3×10^8m/s.

Question: State Ohm’s Law.

Answer: Ohm’s Law states that V=IR, where V is voltage, I is current, and R is resistance.

Question: What is the formula for gravitational force?

Answer: The formula is F=Gm1m2/r^2 ​​, where G is the gravitational constant.

Question: Define power in terms of work done.

Answer: Power is the rate of doing work, P=W/t

Question: What is the unit of electric current?

Answer: The unit is Ampere (A).

Question: Define momentum.

Answer: Momentum is the product of mass and velocity, p=mv

Question: What is the acceleration due to gravity on Earth?

Answer: The value is approximately 9.8 m/s^2

Question: Explain Hooke’s Law.

Answer: Hooke’s Law states that the force needed to extend or compress a spring is directly proportional to the displacement, F=kx

Question: What is the unit of frequency?

Answer: The unit is Hertz (Hz).

Question: Define refractive index.

Answer: Refractive index is the ratio of the speed of light in a vacuum to the speed of light in a medium.

Question: What is the first law of thermodynamics?

Answer: The first law states that energy cannot be created or destroyed, only transformed.

Question: Define work.

Answer: Work is done when a force moves an object through a distance, W=Fd.

Question: What is the principle of conservation of momentum?

Answer: The total momentum of a closed system remains constant if no external forces act on it.

Question: Calculate the work done by a force of 10 N moving an object 5 m.

Answer: The work done is 50 J.

Question: What is the velocity of an object in uniform circular motion?

Answer: The velocity is constant in magnitude but changes direction.

Question: State Coulomb’s Law.

Answer: Coulomb’s Law states that the force between two charges is proportional to the product of the charges and inversely proportional to the square of the distance between them.

Question: What is the formula for mechanical advantage?

Answer: Mechanical advantage is MA=output force/input force 

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Chemistry:

Question: Define atomic number.

Answer: The atomic number is the number of protons in the nucleus of an atom.

Question: What is the chemical formula for water?

Answer: The formula is H₂O.

Question: Define molarity.

Answer: Molarity is the number of moles of solute per liter of solution.

Question: What is the pH of a neutral solution?

Answer: The pH is 7.

Question: State the periodic law.

Answer: The properties of elements are a periodic function of their atomic numbers.

Question: What is the formula for sulfuric acid?

Answer: The formula is H₂SO₄​.

Question: Define isotopes.

Answer: Isotopes are atoms of the same element with different numbers of neutrons.

Question: What is Avogadro’s number?

Answer: Avogadro’s number is 6.022×10²³ particles per mole.

Question: What is the atomic mass of carbon?

Answer: The atomic mass is 12 u.

Question: Define oxidation.

Answer: Oxidation is the loss of electrons in a chemical reaction.

Question: What is the molecular weight of glucose?

Answer: The molecular weight is 180.16 g/mol.

Question: What is the valency of sodium?

Answer: The valency is 1.

Question: Define acid.

Answer: An acid is a substance that donates protons or hydrogen ions in a solution.

Question: What is the chemical symbol for gold?

Answer: The symbol is Au.

Question: Define base.

Answer: A base is a substance that accepts protons or hydrogen ions.

Question: What is the chemical formula of sodium chloride?

Answer: The formula is NaCl.

Question: Define reduction.

Answer: Reduction is the gain of electrons in a chemical reaction.

Question: What is the pH of an acidic solution?

Answer: The pH is less than 7.

Question: What is the atomic number of oxygen?

Answer: The atomic number is 8.

Question: Define catalyst.

Answer: A catalyst is a substance that speeds up a chemical reaction without being consumed.

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Biology:

Question: What is the basic unit of life?

Answer: The cell is the basic unit of life.

Question: What is the function of the mitochondria?

Answer: The mitochondria are the powerhouses of the cell, generating energy.

Question: Define osmosis.

Answer: Osmosis is the diffusion of water through a semipermeable membrane.

Question: What is the genetic material in most living organisms?

Answer: DNA is the genetic material.

Question: Define photosynthesis.

Answer: Photosynthesis is the process by which plants make food using sunlight, water, and carbon dioxide.

Question: What is the role of chlorophyll in photosynthesis?

Answer: Chlorophyll absorbs light energy for photosynthesis.

Question: Define enzyme.

Answer: An enzyme is a protein that speeds up chemical reactions in the body.

Question: What is the function of the heart?

Answer: The heart pumps blood throughout the body.

Question: What is the process of cell division called?

Answer: The process is called mitosis.

Question: Define ecosystem.

Answer: An ecosystem is a community of living organisms interacting with their environment.

Question: What is the function of red blood cells?

Answer: Red blood cells carry oxygen from the lungs to the body tissues.

Question: Define DNA replication.

Answer: DNA replication is the process by which DNA makes a copy of itself during cell division.

Question: What is the function of the brain?

Answer: The brain controls bodily functions and processes information.

Question: Define mutation.

Answer: A mutation is a change in the genetic sequence of an organism.

Question: What is the function of the immune system?

Answer: The immune system defends the body against pathogens.

Question: Define biodiversity.

Answer: Biodiversity refers to the variety of life on Earth.

Question: What is the role of the kidneys?

Answer: The kidneys filter waste from the blood and regulate fluid balance.

Question: What is the function of the liver?

Answer: The liver processes nutrients, detoxifies the blood, and produces bile.

Question: Define habitat.

Answer: A habitat is the natural environment where an organism lives.