Class 9 Half Yearly Exam 2025 | top MCQs Chapter-wise pdf
Physics
Motion – Top MCQs
- Which of the following is a vector quantity?
a) Speed
b) Distance
c) Displacement
d) Path length
Ans: c) Displacement - The slope of a velocity-time graph represents:
a) Speed
b) Acceleration
c) Displacement
d) Distance
Ans: b) Acceleration - SI unit of acceleration is:
a) m/s
b) m/s²
c) m/min²
d) km/h
Ans: b) m/s²
Force and Laws of Motion – Top MCQs
- Newton’s First Law is also called:
a) Law of inertia
b) Law of gravitation
c) Law of momentum
d) Law of acceleration
Ans: a) Law of inertia - Rate of change of momentum is equal to:
a) Force
b) Mass
c) Weight
d) Impulse
Ans: a) Force - Action and reaction forces act:
a) On the same body
b) On different bodies
c) Always in the same direction
d) None of these
Ans: b) On different bodies
Gravitation – Top MCQs
- The value of acceleration due to gravity (g) on Earth is:
a) 8.9 m/s²
b) 9.8 m/s²
c) 10.8 m/s²
d) 9.6 m/s²
Ans: b) 9.8 m/s² - The force of gravity acting on a body is called:
a) Mass
b) Weight
c) Thrust
d) Pressure
Ans: b) Weight - The mass of an object on the moon is:
a) Zero
b) Same as on Earth
c) One-sixth of Earth
d) Double of Earth
Ans: b) Same as on Earth
Work and Energy – Top MCQs
- Work is said to be done when:
a) A force is applied
b) A body is displaced
c) Force is applied and body is displaced in direction of force
d) Force is perpendicular to displacement
Ans: c) Force is applied and body is displaced in direction of force - SI unit of work is:
a) Newton
b) Joule
c) Watt
d) Erg
Ans: b) Joule - Power is defined as:
a) Energy × Time
b) Work × Time
c) Work/Time
d) Force × Distance
Ans: c) Work/Time
Sound – Top MCQs
- The speed of sound is maximum in:
a) Air
b) Water
c) Steel
d) Vacuum
Ans: c) Steel - SI unit of frequency is:
a) Hertz
b) Decibel
c) Metre
d) Second
Ans: a) Hertz - Pitch of sound depends on:
a) Amplitude
b) Frequency
c) Speed
d) Wavelength
Ans: b) Frequency
Chemistry
Class 9 Half Yearly Exam 2025 | top MCQs Chapter-wise pdf
Matter in Our Surroundings – Top MCQs
- Which property is common to solids?
a) Definite shape and volume
b) Highly compressible
c) No fixed boundary
d) Flow easily
Ans: a) Definite shape and volume - The process of conversion of solid directly into gas is called:
a) Evaporation
b) Condensation
c) Sublimation
d) Freezing
Ans: c) Sublimation
Is Matter Around Us Pure? – Top MCQs
- Brass is an example of:
a) Compound
b) Element
c) Mixture
d) Alloy
Ans: d) Alloy - Which separation technique is used to separate cream from milk?
a) Sedimentation
b) Centrifugation
c) Filtration
d) Distillation
Ans: b) Centrifugation
Atoms and Molecules – Top MCQs
- Law of conservation of mass was proposed by:
a) Dalton
b) Lavoisier
c) Boyle
d) Avogadro
Ans: b) Lavoisier - One mole of any substance contains:
a) 6.022 × 10²³ particles
b) 6.022 × 10²⁰ particles
c) 6.022 × 10²² particles
d) 1.022 × 10²³ particles
Ans: a) 6.022 × 10²³ particles
Structure of the Atom – Top MCQs
- The positively charged particle in an atom is:
a) Neutron
b) Proton
c) Electron
d) Positron
Ans: b) Proton - The nucleus of an atom was discovered by:
a) Dalton
b) Thomson
c) Rutherford
d) Bohr
Ans: c) Rutherford
Biology
The Fundamental Unit of Life – Top MCQs
- The control centre of the cell is:
a) Nucleus
b) Mitochondria
c) Golgi body
d) Ribosome
Ans: a) Nucleus - Plant cell wall is made up of:
a) Starch
b) Cellulose
c) Protein
d) Chitin
Ans: b) Cellulose
Tissues – Top MCQs
- Xylem is responsible for:
a) Transport of food
b) Transport of water
c) Photosynthesis
d) Transpiration
Ans: b) Transport of water - The structural and functional unit of nervous tissue is:
a) Cell body
b) Axon
c) Neuron
d) Dendrite
Ans: c) Neuron
Improvement in Food Resources – Top MCQs
- Hybridisation in crops means:
a) Crossing two different varieties
b) Growing crops in rotation
c) Use of fertilizers
d) Use of pesticides
Ans: a) Crossing two different varieties - Apiculture is related to:
a) Fish farming
b) Rearing of silk moth
c) Rearing of honey bees
d) Dairy farming
Ans: c) Rearing of honey bees
Top MCQs Chapter-wise pdf
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