Q1. Matter is anything that has:
A) Energy only
B) Mass and occupies space
C) Temperature only
D) Force only
Answer: B) Mass and occupies space
Q2. Which state of matter has a definite shape and volume?
A) Liquid
B) Gas
C) Solid
D) Plasma
Answer: C) Solid
Q3. The SI unit of density is:
A) kg/m³
B) g/cm²
C) N/m³
D) kg/m²
Answer: A) kg/m³
Q4. Density is defined as:
A) Mass × Volume
B) Volume ÷ Mass
C) Mass ÷ Volume
D) Weight ÷ Mass
Answer: C) Mass ÷ Volume
Q5. Which substance generally has the highest density?
A) Gas
B) Liquid
C) Solid
D) Plasma
Answer: C) Solid
Q6. Relative density is the ratio of:
A) Mass to volume
B) Density of substance to density of water
C) Weight to volume
D) Mass to weight
Answer: B) Density of substance to density of water
Q7. The density of water is:
A) 500 kg/m³
B) 1000 kg/m³
C) 1500 kg/m³
D) 2000 kg/m³
Answer: B) 1000 kg/m³
Q8. If mass = 20 kg and volume = 4 m³, density is:
A) 5 kg/m³
B) 16 kg/m³
C) 24 kg/m³
D) 80 kg/m³
Answer: A) 5 kg/m³
Q9. Pressure is defined as:
A) Force × Area
B) Area ÷ Force
C) Force per unit area
D) Mass × Velocity
Answer: C) Force per unit area
Q10. SI unit of pressure is:
A) Newton
B) Joule
C) Pascal
D) Watt
Answer: C) Pascal
Q11. One Pascal is equal to:
A) 1 N/m²
B) 1 J/s
C) 1 kg/m³
D) 1 W/m²
Answer: A) 1 N/m²
Q12. A force of 50 N acts on an area of 10 m². Pressure is:
A) 2 Pa
B) 5 Pa
C) 10 Pa
D) 500 Pa
Answer: B) 5 Pa
Q13. Atmospheric pressure at sea level is approximately:
A) 1.01 × 10⁵ Pa
B) 5 × 10⁴ Pa
C) 2 × 10⁵ Pa
D) 10³ Pa
Answer: A) 1.01 × 10⁵ Pa
Q14. The instrument used to measure atmospheric pressure is:
A) Hydrometer
B) Thermometer
C) Barometer
D) Ammeter
Answer: C) Barometer
Q15. Pressure in liquids increases with:
A) Height
B) Depth
C) Temperature only
D) Density only
Answer: B) Depth
Q16. The formula for pressure in liquids is:
A) P = m/v
B) P = hρg
C) P = Fv
D) P = mg/h
Answer: B) P = hρg
Q17. Which law explains transmission of pressure in liquids?
A) Boyle’s Law
B) Pascal’s Law
C) Hooke’s Law
D) Newton’s Law
Answer: B) Pascal’s Law
Q18. Hydraulic press works on:
A) Archimedes’ principle
B) Pascal’s Law
C) Ohm’s Law
D) Boyle’s Law
Answer: B) Pascal’s Law
Q19. The tendency of liquid molecules to stick together is called:
A) Adhesion
B) Cohesion
C) Diffusion
D) Elasticity
Answer: B) Cohesion
Q20. Attraction between molecules of different substances is called:
A) Cohesion
B) Adhesion
C) Surface tension
D) Viscosity
Answer: B) Adhesion
Q21. Surface tension acts along the:
A) Surface of liquid
B) Bottom of vessel
C) Entire volume
D) Air above liquid
Answer: A) Surface of liquid
Q22. SI unit of surface tension is:
A) N/m
B) J
C) Pa
D) kg/m³
Answer: A) N/m
Q23. Which insect can walk on water due to:
A) Viscosity
B) Elasticity
C) Surface tension
D) Density
Answer: C) Surface tension
Q24. The rise of liquid in a narrow tube is called:
A) Osmosis
B) Capillarity
C) Condensation
D) Evaporation
Answer: B) Capillarity
Q25. Which liquid rises in a capillary tube?
A) Mercury
B) Water
C) Oil only
D) Alcohol only
Answer: B) Water
Q26. Mercury in a glass tube shows:
A) Capillary rise
B) Capillary depression
C) No change
D) Evaporation
Answer: B) Capillary depression
Q27. Elasticity is the property by which a body:
A) Changes color
B) Regains original shape
C) Melts easily
D) Conducts electricity
Answer: B) Regains original shape
Q28. The SI unit of stress is:
A) Pascal
B) Joule
C) Newton
D) Watt
Answer: A) Pascal
Q29. Stress is equal to:
A) Force × Area
B) Force ÷ Area
C) Area ÷ Force
D) Mass × Acceleration
Answer: B) Force ÷ Area
Q30. Strain is a:
A) Force
B) Pressure
C) Ratio without unit
D) Energy
Answer: C) Ratio without unit
Q31. Young’s modulus is the ratio of:
A) Strain to stress
B) Stress to strain
C) Pressure to force
D) Volume to density
Answer: B) Stress to strain
Q32. Hooke’s law is valid within:
A) Elastic limit
B) Plastic limit
C) Breaking point
D) Melting point
Answer: A) Elastic limit
Q33. According to Hooke’s law, stress is directly proportional to:
A) Density
B) Temperature
C) Strain
D) Pressure
Answer: C) Strain
Q34. Which material is highly elastic?
A) Rubber
B) Steel
C) Plastic
D) Wood
Answer: B) Steel
Q35. Viscosity is the property that opposes:
A) Heat transfer
B) Flow of liquid
C) Reflection of light
D) Sound transmission
Answer: B) Flow of liquid
Q36. Honey has _ viscosity than water. A) Lower B) Equal C) Higher D) Zero Answer: C) Higher Q37. The SI unit of viscosity is: A) N·s/m² B) Joule C) Watt D) N/m Answer: A) N·s/m² Q38. Which liquid flows most easily? A) Honey B) Glycerin C) Water D) Tar Answer: C) Water Q39. Buoyant force acts in the _ direction.
A) Downward
B) Sideways
C) Upward
D) Horizontal
Answer: C) Upward
Q40. Archimedes’ principle deals with:
A) Elasticity
B) Buoyancy
C) Surface tension
D) Viscosity
Answer: B) Buoyancy
Q41. A body floats when:
A) Weight > Upthrust
B) Weight = Upthrust
C) Weight < Mass
D) Density is zero
Answer: B) Weight = Upthrust
Q42. Which object sinks in water?
A) Cork
B) Ice
C) Iron nail
D) Wood piece
Answer: C) Iron nail
Q43. Relative density has:
A) Unit kg/m³
B) Unit Pascal
C) No unit
D) Unit Newton
Answer: C) No unit
Q44. If density of a substance is 800 kg/m³, its relative density is:
A) 0.8
B) 8
C) 80
D) 800
Answer: A) 0.8
Q45. A force of 200 N acts on an area of 20 m². Pressure is:
A) 5 Pa
B) 10 Pa
C) 20 Pa
D) 4000 Pa
Answer: B) 10 Pa
Q46. If stress = 1000 Pa and strain = 0.002, Young’s modulus is:
A) 5000 Pa
B) 2000 Pa
C) 500 Pa
D) 100 Pa
Answer: A) 5000 Pa
Q47. Which property causes drops of liquid to become spherical?
A) Elasticity
B) Surface tension
C) Viscosity
D) Pressure
Answer: B) Surface tension
Q48. A ship made of iron floats because:
A) Iron is lighter than water
B) It displaces a large volume of water
C) It has no weight
D) Sea water has no density
Answer: B) It displaces a large volume of water
Q49. Which phenomenon helps water rise in plants?
A) Reflection
B) Diffusion
C) Capillary action
D) Radiation
Answer: C) Capillary action
Q50. Which property of matter enables springs to return to original shape after stretching?
A) Viscosity
B) Surface tension
C) Elasticity
D) Adhesion
Answer: C) Elasticity
Q51. Which property of matter allows a body to regain its original shape after deformation?
A) Plasticity
B) Viscosity
C) Elasticity
D) Density
Answer: C) Elasticity
Q52. The ratio of change in length to original length is called:
A) Stress
B) Strain
C) Pressure
D) Density
Answer: B) Strain
Q53. Which of the following has no unit?
A) Stress
B) Pressure
C) Strain
D) Density
Answer: C) Strain
Q54. Stress is measured in:
A) Newton
B) Joule
C) Pascal
D) Watt
Answer: C) Pascal
Q55. Young’s modulus is represented by:
A) Y
B) P
C) D
D) S
Answer: A) Y
Q56. Which material is more elastic?
A) Rubber
B) Steel
C) Clay
D) Wax
Answer: B) Steel
Q57. According to Hooke’s law, stress is directly proportional to:
A) Density
B) Volume
C) Strain
D) Temperature
Answer: C) Strain
Q58. Hooke’s law is valid up to the:
A) Melting point
B) Boiling point
C) Elastic limit
D) Freezing point
Answer: C) Elastic limit
Q59. A liquid with high viscosity flows:
A) Quickly
B) Slowly
C) Instantly
D) Upward
Answer: B) Slowly
Q60. Which of the following has maximum viscosity?
A) Water
B) Alcohol
C) Honey
D) Petrol
Answer: C) Honey
Q61. The SI unit of viscosity is:
A) N·s/m²
B) J/m²
C) W/m²
D) N/m
Answer: A) N·s/m²
Q62. Surface tension is caused due to:
A) Adhesive force only
B) Cohesive force only
C) Gravitational force
D) Magnetic force
Answer: B) Cohesive force only
Q63. The SI unit of surface tension is:
A) N/m
B) Pa
C) J
D) N·s/m²
Answer: A) N/m
Q64. Soap decreases the:
A) Pressure
B) Surface tension of water
C) Density of water
D) Elasticity
Answer: B) Surface tension of water
Q65. Small drops of mercury are spherical due to:
A) Viscosity
B) Surface tension
C) Pressure
D) Elasticity
Answer: B) Surface tension
Q66. Capillary action is due to:
A) Cohesion and adhesion
B) Gravity only
C) Pressure only
D) Elasticity
Answer: A) Cohesion and adhesion
Q67. Water rises in plant stems because of:
A) Osmosis
B) Capillary action
C) Diffusion
D) Condensation
Answer: B) Capillary action
Q68. Which liquid shows capillary depression in glass?
A) Water
B) Alcohol
C) Mercury
D) Oil
Answer: C) Mercury
Q69. Archimedes’ principle is related to:
A) Elasticity
B) Pressure
C) Buoyancy
D) Surface tension
Answer: C) Buoyancy
Q70. Upthrust acts in which direction?
A) Downward
B) Horizontal
C) Upward
D) Circular
Answer: C) Upward
Q71. The SI unit of upthrust is:
A) Newton
B) Pascal
C) Joule
D) Watt
Answer: A) Newton
Q72. A body sinks in water when its density is:
A) Equal to water
B) Less than water
C) Greater than water
D) Zero
Answer: C) Greater than water
Q73. Ice floats on water because its density is:
A) Equal to water
B) Greater than water
C) Less than water
D) Infinite
Answer: C) Less than water
Q74. Which instrument measures relative density?
A) Hydrometer
B) Barometer
C) Thermometer
D) Ammeter
Answer: A) Hydrometer
Q75. Relative density of pure water is:
A) 0
B) 0.5
C) 1
D) 1000
Answer: C) 1
Numerical and Formula-Based MCQs
Q76. A body of mass 30 kg occupies 10 m³. Its density is:
A) 2 kg/m³
B) 3 kg/m³
C) 4 kg/m³
D) 5 kg/m³
Answer: B) 3 kg/m³
Q77. Pressure produced by a force of 100 N on an area of 20 m² is:
A) 2 Pa
B) 5 Pa
C) 10 Pa
D) 2000 Pa
Answer: B) 5 Pa
Q78. Density of a substance having mass 80 kg and volume 20 m³ is:
A) 2 kg/m³
B) 3 kg/m³
C) 4 kg/m³
D) 5 kg/m³
Answer: C) 4 kg/m³
Q79. Relative density of a substance having density 2000 kg/m³ is:
A) 1
B) 2
C) 20
D) 200
Answer: B) 2
Q80. A force of 400 N acts on an area of 100 m². Pressure will be:
A) 2 Pa
B) 3 Pa
C) 4 Pa
D) 5 Pa
Answer: C) 4 Pa
Q81. If stress = 500 Pa and strain = 0.1, Young’s modulus is:
A) 500 Pa
B) 1000 Pa
C) 5000 Pa
D) 50 Pa
Answer: C) 5000 Pa
Q82. A mass of 12 kg occupies 3 m³. Find density.
A) 2 kg/m³
B) 3 kg/m³
C) 4 kg/m³
D) 6 kg/m³
Answer: C) 4 kg/m³
Q83. If force is doubled and area remains constant, pressure becomes:
A) Half
B) Double
C) Same
D) Zero
Answer: B) Double
Q84. If area is doubled and force remains constant, pressure becomes:
A) Double
B) Four times
C) Half
D) Same
Answer: C) Half
Q85. Density is directly proportional to:
A) Volume
B) Area
C) Mass
D) Temperature
Answer: C) Mass
Q86. A substance having relative density 0.8 will:
A) Sink in water
B) Float in water
C) Dissolve in water
D) Evaporate
Answer: B) Float in water
Q87. Which law is used in hydraulic brakes?
A) Hooke’s law
B) Newton’s law
C) Pascal’s law
D) Boyle’s law
Answer: C) Pascal’s law
Q88. Which quantity is represented by ρ?
A) Pressure
B) Density
C) Stress
D) Strain
Answer: B) Density
Q89. The formula of density is:
A) m × V
B) V/m
C) m/V
D) F/A
Answer: C) m/V
Q90. The formula of pressure is:
A) F × A
B) A/F
C) F/A
D) m/V
Answer: C) F/A
Q91. Which state of matter is most compressible?
A) Solid
B) Liquid
C) Gas
D) Plasma
Answer: C) Gas
Q92. Atmospheric pressure decreases with:
A) Depth
B) Temperature
C) Altitude
D) Density
Answer: C) Altitude
Q93. Which property enables a needle to float on water?
A) Elasticity
B) Surface tension
C) Viscosity
D) Density
Answer: B) Surface tension
Q94. Which substance has the least density?
A) Iron
B) Water
C) Air
D) Mercury
Answer: C) Air
Q95. A body floats when:
A) Weight > Upthrust
B) Weight < Upthrust
C) Weight = Upthrust
D) Density = 0
Answer: C) Weight = Upthrust
Q96. Which force holds molecules of water together?
A) Adhesive force
B) Cohesive force
C) Magnetic force
D) Frictional force
Answer: B) Cohesive force
Q97. Pressure at the bottom of a liquid depends upon:
A) Shape of vessel only
B) Area of vessel only
C) Depth and density of liquid
D) Color of vessel
Answer: C) Depth and density of liquid
Q98. The phenomenon responsible for ink rising in blotting paper is:
A) Surface tension
B) Elasticity
C) Capillary action
D) Viscosity
Answer: C) Capillary action
Q99. Which property of matter is used in shock absorbers of vehicles?
A) Elasticity
B) Density
C) Surface tension
D) Buoyancy
Answer: A) Elasticity
Q100. Which branch of physics deals with elasticity, pressure, density, viscosity and surface tension?
A) Optics
B) Thermodynamics
C) Properties of Matter
D) Electronics
Answer: C) Properties of Matter