Last Updated: September 2026 |
Target Audience: Class 9 & 10 Students |
Curriculum Mapping: Federal Board (FBISE) & Punjab Boards |
Subjects : Mathematics, Physics, Chemistry, Biology |

Academic Science Quiz Portal

Comprehensive Practice for Class 9 and 10 Science Syllabi

Welcome to the Academic Science Quiz hub of sscquizhub.com. Designed specifically for Class 9 and Class 10 students, our platform features an extensive repository of multiple-choice questions mapped directly to the curricula of the Federal Board (FBISE) and Punjab Boards.

Whether you are preparing for board exams or competitive assessments, our database covers core subjects including Physics, Chemistry, Biology, and General Science. Each question is accompanied by detailed explanations to reinforce conceptual clarity and objective-testing strategies.

Available Subject Modules & Coverage

  • Physics (Class 9 & 10): Covers Kinematics, Dynamics, Work & Energy, Waves, Geometrical Optics, Electrostatics, and Current Electricity.
  • Chemistry (Class 9 & 10): Covers Atomic Structure, Periodic Table, Chemical Bonding, Solutions, Electrochemistry, and Acids/Bases.
  • Biology (Class 9 & 10): Covers Cell Biology, Bioenergetics, Nutrition, Gas Exchange, Homeostasis, and Genetics.
  • General Science: Foundation modules focusing on integrated scientific principles and everyday science.

🔍 Question Validation & Quality Assurance: To ensure high academic accuracy, our question bank goes through a rigorous multi-tier validation pipeline. Questions are initially processed using advanced AI modules to check logical consistency, followed by verification against standard curriculum textbooks and authoritative online resources via Google. Detailed explanations are made available to help students learn from each attempt.

💡 Study Tip: For optimal retention, use these quizzes in tandem with your textbook chapters. Read the relevant chapter, complete a targeted test, and review the explanations for any missed questions.

Choose a subject below to begin your practice:

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1. Physics

Master kinematics, dynamics, work and energy, thermodynamics, and electromagnetism.

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2. Chemistry

Test your grasp on organic, inorganic, and physical chemistry to ensure no topic is left unprepared.

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3. Biology

Evaluate your knowledge of the entire living world, from cell biology to human physiology.

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4. General Science

Challenge yourself with complete problem sets covering foundational science concepts.

⚙️ INTERACTIVE QUIZ SETUP

📂 Available Academic Question Bank Coverage

Our academic database is structured by grade level and textbook chapters to support board exam preparation and conceptual mastery:

Class 10 Biology: 7 Chapters (342+ MCQs)
Class 10 Chemistry: 5 Chapters (209+ MCQs)
Class 10 Mathematics: 12 Chapters (1014+ MCQs)
Class 10 Physics: 7 Chapters (509+ MCQs)
Class 11 Mathematics: 9 Chapters (2727+ MCQs)
Class 11 Physics: 11 Chapters (1983+ MCQs)
Class 9 Biology: 13 Chapters (1009+ MCQs)
Class 9 Chemistry: 14 Chapters (1141+ MCQs)
Class 9 Mathematics: 16 Chapters (1004+ MCQs)
Class 9 Physics: 9 Chapters (722+ MCQs)
Class General General: 1 Chapters (199+ MCQs)

📚 Solved Academic MCQs & Concept Explanations – 10 | Physics | Atomic and Nuclear Physics

Study these curriculum-aligned objective questions with verified answers and step-by-step explanations below, or use the interactive quiz configurator above to launch a customized test.

🏫 Class: 10 📘 Subject: Physics 🔖 Chapter: Atomic and Nuclear Physics ⚙️ Level: Hard

Q1Across a period, how do atomic radius and electronegativity change?

A. Radius ↓, electronegativity ↑ ✓ Correct Answer
B. Radius ↑, electronegativity ↓
C. Both ↓
D. Both ↑
💡 Explanation: Higher nuclear charge across a period pulls electrons closer, decreasing radius and increasing electronegativity.
🏫 Class: 10 📘 Subject: Physics 🔖 Chapter: Atomic and Nuclear Physics ⚙️ Level: Moderate

Q2What is the primary function of Radioactivity in the context of Chapter 18: Atomic and Nuclear Physics?

A. The continuous absorption of ambient thermal energy by stable atomic isotopes
B. The artificial stimulation of atomic electrons using high-intensity laser beams
C. The chemical decomposition of radioactive mineral ores using strong acids
D. The spontaneous emission of ionizing radiation or particles from unstable atomic nuclei
💡 Explanation: Radioactivity is the spontaneous decay of unstable atomic nuclei accompanied by alpha, beta, or gamma emissions.
🏫 Class: 10 📘 Subject: Physics 🔖 Chapter: Atomic and Nuclear Physics ⚙️ Level: Hard

Q3What is the key characteristic of radioactivity within Chapter 18: Atomic and Nuclear Physics?

A. The chemical decomposition of radioactive mineral ores using strong acids
B. The spontaneous emission of ionizing radiation or particles from unstable atomic nuclei
C. The continuous absorption of ambient thermal energy by stable atomic isotopes
D. The artificial stimulation of atomic electrons using high-intensity laser beams
💡 Explanation: Radioactivity is the process by which unstable atomic nuclei release alpha, beta, or gamma particles due to their natural decay.
🏫 Class: 10 📘 Subject: Physics 🔖 Chapter: Atomic and Nuclear Physics ⚙️ Level: Hard

Q4What is the primary action of Radioactivity in Chapter 18: Atomic and Nuclear Physics?

A. The spontaneous emission of ionizing radiation or particles from unstable atomic nuclei
B. The chemical decomposition of radioactive mineral ores using strong acids
C. The artificial stimulation of atomic electrons using high-intensity laser beams
D. The continuous absorption of ambient thermal energy by stable atomic isotopes
💡 Explanation: Radioactivity is the spontaneous decay of unstable atomic nuclei accompanied by alpha, beta, or gamma emissions.
🏫 Class: 10 📘 Subject: Physics 🔖 Chapter: Atomic and Nuclear Physics ⚙️ Level: Hard

Q5What is the primary process by which radioactive substances decay?

A. The artificial stimulation of atomic electrons using high-intensity laser beams
B. The continuous absorption of ambient thermal energy by stable atomic isotopes
C. The chemical decomposition of radioactive mineral ores using strong acids
D. The spontaneous emission of ionizing radiation or particles from unstable atomic nuclei
💡 Explanation: Radioactivity is the spontaneous decay of unstable atomic nuclei accompanied by alpha, beta, or gamma emissions.
🏫 Class: 10 📘 Subject: Physics 🔖 Chapter: Atomic and Nuclear Physics ⚙️ Level: Hard

Q6What is the primary role of Half-Life in Physics?

A. Time to lose entire mass
B. Time for half nuclei to decay ✓ Correct Answer
C. Time for atomic nucleus to double protons
D. Time for radioactive substance to reach thermal zero
💡 Explanation: Half-life in Physics refers to the duration needed for half of a radioactive sample to undergo decay. Its primary role is to measure the time it takes for the quantity of a radioactive substance to reduce to half of its initial value.
🏫 Class: 10 📘 Subject: Physics 🔖 Chapter: Atomic and Nuclear Physics ⚙️ Level: Hard

Q7How does Half-Life function?

A. Time to double initial proton count
B. Time to completely lose entire mass
C. Time to reach absolute thermal zero
D. Time for half of nuclei to decay
💡 Explanation: Half-life is a characteristic property measuring the duration needed for half of a radioactive sample to undergo decay.
🏫 Class: 10 📘 Subject: Physics 🔖 Chapter: Atomic and Nuclear Physics ⚙️ Level: Hard

Q8What is the primary purpose of a half-life in the context of radioactive decay?

A. Loss of entire mass
B. Increase in proton count
C. Decay of half of radioactive nuclei
D. Reaching absolute thermal zero
💡 Explanation: Half-life is the time it takes for half of a radioactive sample to undergo decay. In the context of radioactive decay, the primary purpose of a half-life is the decay of half of the radioactive nuclei.
🏫 Class: 10 📘 Subject: Physics 🔖 Chapter: Atomic and Nuclear Physics ⚙️ Level: Moderate

Q9What is the term for the time it takes for half of the radioactive nuclei in a sample to decay?

A. Time to double initial proton count
B. Complete loss of isotope mass
C. Reaching absolute thermal zero
D. Time for half of radioactive nuclei to decay
💡 Explanation: Half-life is a characteristic property of radioactive substances, representing the duration needed for half of a sample to undergo decay.
🏫 Class: 10 📘 Subject: Physics 🔖 Chapter: Atomic and Nuclear Physics ⚙️ Level: Moderate

Q10What does half-life measure?

A. Time for isotope to lose all mass
B. Time to reach absolute zero
C. Time for half of nuclei to decay ✓ Correct Answer
D. Time for nucleus to double protons
💡 Explanation: Half-life is the time required for half of a radioactive sample to decay.
🏫 Class: 10 📘 Subject: Physics 🔖 Chapter: Atomic and Nuclear Physics ⚙️ Level: Moderate

Q11What is the Half-Life of a radioactive isotope?

A. Time to double initial proton count
B. Complete loss of mass
C. Half of radioactive nuclei decay
D. Substance reaches absolute thermal zero
💡 Explanation: Half-life is a characteristic property measuring the time needed for half of a radioactive sample to undergo decay.
🏫 Class: 10 📘 Subject: Physics 🔖 Chapter: Atomic and Nuclear Physics ⚙️ Level: Moderate

Q12What is the biological function of Half-Life?

A. Time for radioactive substance to decay
B. Time for atomic nucleus to double protons
C. Time for radioactive isotope to lose mass
D. Time for half of radioactive nuclei to decay
💡 Explanation: Half-life is a characteristic property measuring the duration needed for half of a radioactive sample to undergo decay.
🏫 Class: 10 📘 Subject: Physics 🔖 Chapter: Atomic and Nuclear Physics ⚙️ Level: Hard

Q13What is the primary action of Half-Life?

A. Double initial proton count
B. Half of radioactive nuclei decay
C. Lose entire mass completely
D. Reach absolute thermal zero
💡 Explanation: Half-life is the time it takes for half of a radioactive sample to decay. The primary action of Half-Life is the decay of half of the radioactive nuclei in the sample.
🏫 Class: 10 📘 Subject: Physics 🔖 Chapter: Atomic and Nuclear Physics ⚙️ Level: Hard

Q14What is the process of Nuclear Fission?

A. Formation of a heavier stable nucleus
B. Splitting of a heavy atomic nucleus
C. Spontaneous emission of a helium nucleus
D. Artificial acceleration of high-velocity electrons
💡 Explanation: Nuclear fission occurs when a heavy nucleus, like Uranium-235, absorbs a neutron and splits apart, releasing immense energy.
🏫 Class: 10 📘 Subject: Physics 🔖 Chapter: Atomic and Nuclear Physics ⚙️ Level: Hard

Q15What is the process of breaking a heavy nucleus into smaller nuclei?

A. Nuclear fission
B. Nuclear fusion
C. Particle acceleration
D. Radioactive decay
💡 Explanation: Nuclear fission occurs when a heavy nucleus, like Uranium-235, splits apart after absorbing a neutron, releasing immense energy.
🏫 Class: 10 📘 Subject: Physics 🔖 Chapter: Atomic and Nuclear Physics ⚙️ Level: Moderate

Q16What process occurs when a heavy nucleus splits apart due to neutron absorption?

A. Splitting a massive heavy atomic nucleus into smaller ones ✓ Correct Answer
B. Artificial acceleration of high-velocity electrons
C. Spontaneous emission of an energetic helium nucleus
D. Fusing two lightweight atomic nuclei together
💡 Explanation: Nuclear fission is the process in which a heavy nucleus, like Uranium-235, absorbs a neutron and splits apart, releasing immense energy.
🏫 Class: 10 📘 Subject: Physics 🔖 Chapter: Atomic and Nuclear Physics ⚙️ Level: Hard

Q17What is the core function of nuclear fission?

A. Fusing light nuclei
B. Splitting a heavy nucleus ✓ Correct Answer
C. Accelerating electrons
D. Emitting helium nuclei
💡 Explanation: Nuclear fission involves splitting a heavy nucleus into smaller nuclei, releasing significant energy.
🏫 Class: 10 📘 Subject: Physics 🔖 Chapter: Atomic and Nuclear Physics ⚙️ Level: Moderate

Q18In Chapter 18: Atomic and Nuclear Physics, what is Nuclear Fission based on? A) The spontaneous emission of an energetic helium nucleus from a radioactive atom B) The splitting of a massive heavy atomic nucleus into two or more smaller lighter nuclei C) The artificial acceleration of high-velocity electrons striking a heavy-metal target D) The fusing of two lightweight atomic nuclei together to form a heavier stable nucleus

A. A
B. B ✓ Correct Answer
C. C
D. D
💡 Explanation: Nuclear fission occurs when a heavy nucleus, such as Uranium-235, absorbs a neutron and splits into smaller pieces.
🏫 Class: 10 📘 Subject: Physics 🔖 Chapter: Atomic and Nuclear Physics ⚙️ Level: Moderate

Q19What is the definition of Nuclear Fusion and its role in Chapter 18: Atomic and Nuclear Physics?

A. The spontaneous radioactive decay of unstable carbon-14 isotopes into nitrogen
B. The combining of lightweight atomic nuclei to form a heavier nucleus releasing immense energy
C. The splitting of a massive heavy atomic nucleus into two or more smaller lighter nuclei
D. The artificial capture of free thermal neutrons by a stable lead shield
💡 Explanation: Nuclear fusion is the process of combining lightweight atomic nuclei to form a heavier nucleus, releasing a large amount of energy. This process is crucial, as it powers the sun and occurs in stars. In Chapter 18: Atomic and Nuclear Physics, you will learn about the principles and applications of nuclear fusion.
🏫 Class: 10 📘 Subject: Physics 🔖 Chapter: Atomic and Nuclear Physics ⚙️ Level: Moderate

Q20How does Nuclear Fusion occur within the context of Chapter 18: Atomic and Nuclear Physics?

A. The spontaneous radioactive decay of unstable carbon-14 isotopes into nitrogen
B. The splitting of a massive heavy atomic nucleus into two or more smaller lighter nuclei
C. The artificial capture of free thermal neutrons by a stable lead shield
D. The combining of lightweight atomic nuclei to form a heavier nucleus releasing immense energy ✓ Correct Answer
💡 Explanation: Nuclear fusion is the process of combining lightweight atomic nuclei to form a heavier nucleus, releasing immense energy. This occurs in stars like the sun, where extreme temperature and pressure allow the fusion of hydrogen nuclei (protons) into helium.