Important Formulas for Class 9 Science. Try first, then reveal the answer. These are exam-oriented practice items, not copied board papers.
Practice questions aligned to NCERT topics used in CBSE classrooms. These are original exam-oriented questions for revision — not official CBSE board papers and not a guarantee of any exam question. Always match the textbook issued by your school and the latest PDFs on ncert.nic.in and cbseacademic.nic.in.
Choose the correct statement related to Matter in Our Surroundings in the chapter Matter in Our Surroundings.
A. Latent heat
B. CBSE often tests a concept by asking a daily-life example from the same chapter
C. Matter in Our Surroundings is an NCERT chapter taught in CBSE Class 9 Science
D. Matter has mass and occupies space
Answer
D. Matter has mass and occupies space
Explanation
Matter has mass and occupies space. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Science · Chapter: Matter in Our Surroundings · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q2MCQ1 markEasy
Choose the correct statement related to Matter in Our Surroundings in the chapter Matter in Our Surroundings.
A. Solid, liquid, gas differ in particle arrangement
B. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
C. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
D. Evaporation causes cooling
Answer
A. Solid, liquid, gas differ in particle arrangement
Explanation
Solid, liquid, gas differ in particle arrangement. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Science · Chapter: Matter in Our Surroundings · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q3MCQ1 markEasy
Choose the correct statement related to Matter in Our Surroundings in the chapter Matter in Our Surroundings.
A. Write three points from Matter in Our Surroundings in your own words; that is enough for a short-answer start
B. SI unit of temperature is kelvin; 0°C = 273 K
C. Every chapter ends with keywords or a summary that is useful for one-mark answers
D. Latent heat
Answer
D. Latent heat
Explanation
Latent heat. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Science · Chapter: Matter in Our Surroundings · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q4MCQ1 markEasy
Choose the correct statement related to Matter in Our Surroundings in the chapter Matter in Our Surroundings.
A. Evaporation causes cooling
B. Use the terms used in the NCERT book; do not replace them with unofficial names
C. Matter in Our Surroundings is an NCERT chapter taught in CBSE Class 9 Science
D. CBSE often tests a concept by asking a daily-life example from the same chapter
Answer
A. Evaporation causes cooling
Explanation
Evaporation causes cooling. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Science · Chapter: Matter in Our Surroundings · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q1MCQ1 markEasyRevision pick
Choose the correct statement related to Is Matter Around Us Pure? in the chapter Is Matter Around Us Pure?.
A. CBSE often tests a concept by asking a daily-life example from the same chapter
B. A pure substance has uniform composition
C. Is Matter Around Us Pure? is an NCERT chapter taught in CBSE Class 9 Science
D. Solution = solute + solvent
Answer
B. A pure substance has uniform composition
Explanation
A pure substance has uniform composition. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Science · Chapter: Is Matter Around Us Pure? · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q2MCQ1 markEasy
Choose the correct statement related to Is Matter Around Us Pure? in the chapter Is Matter Around Us Pure?.
A. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
B. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
C. Concentration as mass by mass percent
D. Mixtures are homogeneous or heterogeneous
Answer
D. Mixtures are homogeneous or heterogeneous
Explanation
Mixtures are homogeneous or heterogeneous. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Science · Chapter: Is Matter Around Us Pure? · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q3MCQ1 markEasy
Choose the correct statement related to Is Matter Around Us Pure? in the chapter Is Matter Around Us Pure?.
A. Colloids show Tyndall effect
B. Solution = solute + solvent
C. Every chapter ends with keywords or a summary that is useful for one-mark answers
D. Write three points from Is Matter Around Us Pure? in your own words; that is enough for a short-answer start
Answer
B. Solution = solute + solvent
Explanation
Solution = solute + solvent. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Science · Chapter: Is Matter Around Us Pure? · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q4MCQ1 markEasy
Choose the correct statement related to Is Matter Around Us Pure? in the chapter Is Matter Around Us Pure?.
A. Use the terms used in the NCERT book; do not replace them with unofficial names
B. Concentration as mass by mass percent
C. Is Matter Around Us Pure? is an NCERT chapter taught in CBSE Class 9 Science
D. CBSE often tests a concept by asking a daily-life example from the same chapter
Answer
B. Concentration as mass by mass percent
Explanation
Concentration as mass by mass percent. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Science · Chapter: Is Matter Around Us Pure? · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q1MCQ1 markEasyRevision pick
Choose the correct statement related to Atoms and Molecules in the chapter Atoms and Molecules.
A. CBSE often tests a concept by asking a daily-life example from the same chapter
B. Law of conservation of mass
C. Atoms and Molecules is an NCERT chapter taught in CBSE Class 9 Science
D. Atom is the smallest unit of an element that takes part in a reaction as taught here
Answer
B. Law of conservation of mass
Explanation
Law of conservation of mass. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Science · Chapter: Atoms and Molecules · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q2MCQ1 markEasy
Choose the correct statement related to Atoms and Molecules in the chapter Atoms and Molecules.
A. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
B. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
C. Law of constant proportions
D. Molecule of an element or compound
Answer
C. Law of constant proportions
Explanation
Law of constant proportions. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Science · Chapter: Atoms and Molecules · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q3MCQ1 markEasy
Choose the correct statement related to Atoms and Molecules in the chapter Atoms and Molecules.
A. Write three points from Atoms and Molecules in your own words; that is enough for a short-answer start
B. Every chapter ends with keywords or a summary that is useful for one-mark answers
C. Chemical formula uses symbols and valency
D. Atom is the smallest unit of an element that takes part in a reaction as taught here
Answer
D. Atom is the smallest unit of an element that takes part in a reaction as taught here
Explanation
Atom is the smallest unit of an element that takes part in a reaction as taught here. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Science · Chapter: Atoms and Molecules · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q4MCQ1 markEasy
Choose the correct statement related to Atoms and Molecules in the chapter Atoms and Molecules.
A. Atoms and Molecules is an NCERT chapter taught in CBSE Class 9 Science
B. Use the terms used in the NCERT book; do not replace them with unofficial names
C. Molecule of an element or compound
D. CBSE often tests a concept by asking a daily-life example from the same chapter
Answer
C. Molecule of an element or compound
Explanation
Molecule of an element or compound. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Science · Chapter: Atoms and Molecules · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q1MCQ1 markEasyRevision pick
Choose the correct statement related to Structure of the Atom in the chapter Structure of the Atom.
A. CBSE often tests a concept by asking a daily-life example from the same chapter
B. Mass number A = protons + neutrons
C. Structure of the Atom is an NCERT chapter taught in CBSE Class 9 Science
D. Electron is negative; proton positive; neutron neutral
Answer
D. Electron is negative; proton positive; neutron neutral
Explanation
Electron is negative; proton positive; neutron neutral. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Science · Chapter: Structure of the Atom · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q2MCQ1 markEasy
Choose the correct statement related to Structure of the Atom in the chapter Structure of the Atom.
A. Bohr–Bury rules for shells as in NCERT
B. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
C. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
D. Atomic number Z = number of protons
Answer
D. Atomic number Z = number of protons
Explanation
Atomic number Z = number of protons. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Science · Chapter: Structure of the Atom · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q3MCQ1 markEasy
Choose the correct statement related to Structure of the Atom in the chapter Structure of the Atom.
A. Write three points from Structure of the Atom in your own words; that is enough for a short-answer start
B. Every chapter ends with keywords or a summary that is useful for one-mark answers
C. Mass number A = protons + neutrons
D. Valence electrons decide combining capacity
Answer
C. Mass number A = protons + neutrons
Explanation
Mass number A = protons + neutrons. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Science · Chapter: Structure of the Atom · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q4MCQ1 markEasy
Choose the correct statement related to Structure of the Atom in the chapter Structure of the Atom.
A. Use the terms used in the NCERT book; do not replace them with unofficial names
B. Structure of the Atom is an NCERT chapter taught in CBSE Class 9 Science
C. Bohr–Bury rules for shells as in NCERT
D. CBSE often tests a concept by asking a daily-life example from the same chapter
Answer
C. Bohr–Bury rules for shells as in NCERT
Explanation
Bohr–Bury rules for shells as in NCERT. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Science · Chapter: Structure of the Atom · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q1MCQ1 markEasyRevision pick
Choose the correct statement related to The Fundamental Unit of Life in the chapter The Fundamental Unit of Life.
A. CBSE often tests a concept by asking a daily-life example from the same chapter
B. Cell is the basic unit of life
C. The Fundamental Unit of Life is an NCERT chapter taught in CBSE Class 9 Science
D. Nucleus holds genetic material
Answer
B. Cell is the basic unit of life
Explanation
Cell is the basic unit of life. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Science · Chapter: The Fundamental Unit of Life · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q2MCQ1 markEasy
Choose the correct statement related to The Fundamental Unit of Life in the chapter The Fundamental Unit of Life.
A. Plant cells have cell wall and usually chloroplasts
B. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
C. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
D. Plasma membrane is selectively permeable
Answer
D. Plasma membrane is selectively permeable
Explanation
Plasma membrane is selectively permeable. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Science · Chapter: The Fundamental Unit of Life · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q3MCQ1 markEasy
Choose the correct statement related to The Fundamental Unit of Life in the chapter The Fundamental Unit of Life.
A. Prokaryotes lack a true nucleus
B. Nucleus holds genetic material
C. Every chapter ends with keywords or a summary that is useful for one-mark answers
D. Write three points from The Fundamental Unit of Life in your own words; that is enough for a short-answer start
Answer
B. Nucleus holds genetic material
Explanation
Nucleus holds genetic material. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Science · Chapter: The Fundamental Unit of Life · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q4MCQ1 markEasy
Choose the correct statement related to The Fundamental Unit of Life in the chapter The Fundamental Unit of Life.
A. Plant cells have cell wall and usually chloroplasts
B. Use the terms used in the NCERT book; do not replace them with unofficial names
C. CBSE often tests a concept by asking a daily-life example from the same chapter
D. The Fundamental Unit of Life is an NCERT chapter taught in CBSE Class 9 Science
Answer
A. Plant cells have cell wall and usually chloroplasts
Explanation
Plant cells have cell wall and usually chloroplasts. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Science · Chapter: The Fundamental Unit of Life · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q1MCQ1 markEasyRevision pick
Choose the correct statement related to Tissues in the chapter Tissues.
A. CBSE often tests a concept by asking a daily-life example from the same chapter
B. Epithelial, connective, muscular, nervous in animals
C. Tissues is an NCERT chapter taught in CBSE Class 9 Science
D. Meristematic tissue divides
Answer
D. Meristematic tissue divides
Explanation
Meristematic tissue divides. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Science · Chapter: Tissues · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q2MCQ1 markEasy
Choose the correct statement related to Tissues in the chapter Tissues.
A. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
B. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
C. Xylem and phloem are complex permanent tissues
D. Blood is a connective tissue
Answer
C. Xylem and phloem are complex permanent tissues
Explanation
Xylem and phloem are complex permanent tissues. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Science · Chapter: Tissues · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q3MCQ1 markEasy
Choose the correct statement related to Tissues in the chapter Tissues.
A. Write three points from Tissues in your own words; that is enough for a short-answer start
B. Every chapter ends with keywords or a summary that is useful for one-mark answers
C. Epithelial, connective, muscular, nervous in animals
D. Function follows structure
Answer
C. Epithelial, connective, muscular, nervous in animals
Explanation
Epithelial, connective, muscular, nervous in animals. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Science · Chapter: Tissues · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q4MCQ1 markEasy
Choose the correct statement related to Tissues in the chapter Tissues.
A. Blood is a connective tissue
B. Tissues is an NCERT chapter taught in CBSE Class 9 Science
C. Use the terms used in the NCERT book; do not replace them with unofficial names
D. CBSE often tests a concept by asking a daily-life example from the same chapter
Answer
A. Blood is a connective tissue
Explanation
Blood is a connective tissue. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Science · Chapter: Tissues · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q1MCQ1 markEasyRevision pick
Choose the correct statement related to Motion in the chapter Motion.
A. Distance is scalar; displacement is vector
B. CBSE often tests a concept by asking a daily-life example from the same chapter
C. Velocity = displacement/time
D. Motion is an NCERT chapter taught in CBSE Class 9 Science
Answer
A. Distance is scalar; displacement is vector
Explanation
Distance is scalar; displacement is vector. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Science · Chapter: Motion · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q2MCQ1 markEasy
Choose the correct statement related to Motion in the chapter Motion.
A. Acceleration = change in velocity / time
B. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
C. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
D. Speed = distance/time
Answer
D. Speed = distance/time
Explanation
Speed = distance/time. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Science · Chapter: Motion · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q3MCQ1 markEasy
Choose the correct statement related to Motion in the chapter Motion.
A. Equations of motion for uniform acceleration as retained in your book
B. Every chapter ends with keywords or a summary that is useful for one-mark answers
C. Velocity = displacement/time
D. Write three points from Motion in your own words; that is enough for a short-answer start
Answer
C. Velocity = displacement/time
Explanation
Velocity = displacement/time. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Science · Chapter: Motion · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q4MCQ1 markEasy
Choose the correct statement related to Motion in the chapter Motion.
A. Use the terms used in the NCERT book; do not replace them with unofficial names
B. Motion is an NCERT chapter taught in CBSE Class 9 Science
C. Acceleration = change in velocity / time
D. CBSE often tests a concept by asking a daily-life example from the same chapter
Answer
C. Acceleration = change in velocity / time
Explanation
Acceleration = change in velocity / time. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Science · Chapter: Motion · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q1MCQ1 markEasyRevision pick
Choose the correct statement related to First law in the chapter Force and Laws of Motion.
A. CBSE often tests a concept by asking a daily-life example from the same chapter
B. First law: inertia
C. Force and Laws of Motion is an NCERT chapter taught in CBSE Class 9 Science
D. Third law: action–reaction
Answer
B. First law: inertia
Explanation
First law: inertia. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Science · Chapter: Force and Laws of Motion · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q2MCQ1 markEasy
Choose the correct statement related to Second law in the chapter Force and Laws of Motion.
A. Momentum p = mv
B. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
C. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
D. Second law: F = ma
Answer
D. Second law: F = ma
Explanation
Second law: F = ma. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Science · Chapter: Force and Laws of Motion · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q3MCQ1 markEasy
Choose the correct statement related to Third law in the chapter Force and Laws of Motion.
A. SI unit of force is newton
B. Every chapter ends with keywords or a summary that is useful for one-mark answers
C. Third law: action–reaction
D. Write three points from Force and Laws of Motion in your own words; that is enough for a short-answer start
Answer
C. Third law: action–reaction
Explanation
Third law: action–reaction. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Science · Chapter: Force and Laws of Motion · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q4MCQ1 markEasy
Choose the correct statement related to Force and Laws of Motion in the chapter Force and Laws of Motion.
A. Use the terms used in the NCERT book; do not replace them with unofficial names
B. Force and Laws of Motion is an NCERT chapter taught in CBSE Class 9 Science
C. Momentum p = mv
D. CBSE often tests a concept by asking a daily-life example from the same chapter
Answer
C. Momentum p = mv
Explanation
Momentum p = mv. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Science · Chapter: Force and Laws of Motion · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q1MCQ1 markEasyRevision pick
Choose the correct statement related to Gravitation in the chapter Gravitation.
A. F = G m1 m2 / r²
B. CBSE often tests a concept by asking a daily-life example from the same chapter
C. Weight W = mg
D. Gravitation is an NCERT chapter taught in CBSE Class 9 Science
Answer
A. F = G m1 m2 / r²
Explanation
F = G m1 m2 / r². The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Science · Chapter: Gravitation · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q2MCQ1 markEasy
Choose the correct statement related to Gravitation in the chapter Gravitation.
A. g is acceleration due to gravity
B. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
C. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
D. Archimedes’ principle
Answer
A. g is acceleration due to gravity
Explanation
g is acceleration due to gravity. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Science · Chapter: Gravitation · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q3MCQ1 markEasy
Choose the correct statement related to Gravitation in the chapter Gravitation.
A. Weight W = mg
B. Density = mass/volume
C. Every chapter ends with keywords or a summary that is useful for one-mark answers
D. Write three points from Gravitation in your own words; that is enough for a short-answer start
Answer
A. Weight W = mg
Explanation
Weight W = mg. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Science · Chapter: Gravitation · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q4MCQ1 markEasy
Choose the correct statement related to Gravitation in the chapter Gravitation.
A. Gravitation is an NCERT chapter taught in CBSE Class 9 Science
B. Use the terms used in the NCERT book; do not replace them with unofficial names
C. Archimedes’ principle
D. CBSE often tests a concept by asking a daily-life example from the same chapter
Answer
C. Archimedes’ principle
Explanation
Archimedes’ principle. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Science · Chapter: Gravitation · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q1MCQ1 markEasyRevision pick
Choose the correct statement related to Work and Energy in the chapter Work and Energy.
A. KE = ½ mv²
B. CBSE often tests a concept by asking a daily-life example from the same chapter
C. Work W = F s cosθ
D. Work and Energy is an NCERT chapter taught in CBSE Class 9 Science
Answer
C. Work W = F s cosθ
Explanation
Work W = F s cosθ. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Science · Chapter: Work and Energy · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q2MCQ1 markEasy
Choose the correct statement related to Work and Energy in the chapter Work and Energy.
A. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
B. PE = mgh near Earth
C. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
D. SI unit joule
Answer
D. SI unit joule
Explanation
SI unit joule. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Science · Chapter: Work and Energy · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q3MCQ1 markEasy
Choose the correct statement related to Work and Energy in the chapter Work and Energy.
A. Write three points from Work and Energy in your own words; that is enough for a short-answer start
B. Every chapter ends with keywords or a summary that is useful for one-mark answers
C. KE = ½ mv²
D. Energy can change form but total is conserved in an isolated system as taught
Answer
C. KE = ½ mv²
Explanation
KE = ½ mv². The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Science · Chapter: Work and Energy · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q4MCQ1 markEasy
Choose the correct statement related to Work and Energy in the chapter Work and Energy.
A. PE = mgh near Earth
B. Use the terms used in the NCERT book; do not replace them with unofficial names
C. Work and Energy is an NCERT chapter taught in CBSE Class 9 Science
D. CBSE often tests a concept by asking a daily-life example from the same chapter
Answer
A. PE = mgh near Earth
Explanation
PE = mgh near Earth. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Science · Chapter: Work and Energy · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q1MCQ1 markEasyRevision pick
Choose the correct statement related to Sound in the chapter Sound.
A. CBSE often tests a concept by asking a daily-life example from the same chapter
B. Sound is an NCERT chapter taught in CBSE Class 9 Science
C. Sound needs a medium
D. Amplitude relates to loudness
Answer
C. Sound needs a medium
Explanation
Sound needs a medium. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Science · Chapter: Sound · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q2MCQ1 markEasy
Choose the correct statement related to Sound in the chapter Sound.
A. Speed of sound is fastest in solids among the three states typically
B. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
C. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
D. Frequency decides pitch
Answer
D. Frequency decides pitch
Explanation
Frequency decides pitch. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Science · Chapter: Sound · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q3MCQ1 markEasy
Choose the correct statement related to Sound in the chapter Sound.
A. Echo is reflection of sound
B. Every chapter ends with keywords or a summary that is useful for one-mark answers
C. Amplitude relates to loudness
D. Write three points from Sound in your own words; that is enough for a short-answer start
Answer
C. Amplitude relates to loudness
Explanation
Amplitude relates to loudness. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Science · Chapter: Sound · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q4MCQ1 markEasy
Choose the correct statement related to Sound in the chapter Sound.
A. Speed of sound is fastest in solids among the three states typically
B. Use the terms used in the NCERT book; do not replace them with unofficial names
C. Sound is an NCERT chapter taught in CBSE Class 9 Science
D. CBSE often tests a concept by asking a daily-life example from the same chapter
Answer
A. Speed of sound is fastest in solids among the three states typically
Explanation
Speed of sound is fastest in solids among the three states typically. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Science · Chapter: Sound · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q1MCQ1 markEasyRevision pick
Choose the correct statement related to Improvement in Food Resources in the chapter Improvement in Food Resources.
A. CBSE often tests a concept by asking a daily-life example from the same chapter
B. Improvement in Food Resources is an NCERT chapter taught in CBSE Class 9 Science
C. Kharif and rabi crops
D. Irrigation
Answer
C. Kharif and rabi crops
Explanation
Kharif and rabi crops. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Science · Chapter: Improvement in Food Resources · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q2MCQ1 markEasy
Choose the correct statement related to Improvement in Food Resources in the chapter Improvement in Food Resources.
A. Manure and fertilisers
B. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
C. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
D. Animal husbandry
Answer
A. Manure and fertilisers
Explanation
Manure and fertilisers. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Science · Chapter: Improvement in Food Resources · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q3MCQ1 markEasy
Choose the correct statement related to Improvement in Food Resources in the chapter Improvement in Food Resources.
A. Irrigation
B. Sustainable agriculture ideas in the chapter
C. Every chapter ends with keywords or a summary that is useful for one-mark answers
D. Write three points from Improvement in Food Resources in your own words; that is enough for a short-answer start
Answer
A. Irrigation
Explanation
Irrigation. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Science · Chapter: Improvement in Food Resources · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q4MCQ1 markEasy
Choose the correct statement related to Improvement in Food Resources in the chapter Improvement in Food Resources.
A. Improvement in Food Resources is an NCERT chapter taught in CBSE Class 9 Science
B. Animal husbandry
C. Use the terms used in the NCERT book; do not replace them with unofficial names
D. CBSE often tests a concept by asking a daily-life example from the same chapter
Answer
B. Animal husbandry
Explanation
Animal husbandry. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Science · Chapter: Improvement in Food Resources · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
FAQs
Are these official CBSE board questions?
No. They are original practice questions aligned to NCERT topics used in CBSE classrooms. Official sample papers are published on cbseacademic.nic.in.
Will these questions appear in the board exam?
Nobody can promise a question. Use them for revision of frequently tested concepts and exam-style practice.
Is the chapter list the latest NCERT list?
Yes, the catalog follows current NCERT textbooks used in CBSE schools (including new middle-stage books such as Ganita Prakash and Curiosity). Always match the book issued by your school.
Where are NCERT solutions?
Open the NCERT-style practice link on this subject or chapter. For word-for-word textbook exercise answers, use the NCERT book itself; we do not copy solution keys from other websites.
What is the suggested URL pattern?
Hub /cbse/, then /cbse/class-9/, then subject and chapter slugs.
Why is this a separate URL?
So students searching for “Important Formulas” land on a filtered set, while the chapter page remains the full 100-question bank. Same facts, different search intent.
Today's 3-step path
Follow this loop every day: mixed test, current affairs, then today's subject. A new set arrives tomorrow.
