PES SS 1 PHYSICS (Obj) 2nd Term Exam 2025/2026
  • 1. What is linear momentum?
A) Mass x velocity
B) Force x time
C) Mass x acceleration
D) Velocity / mass
  • 2. A body of mass 2 kg moves with velocity 5 m/s. Its momentum is
A) 15 k gm/s
B) 2.5 k gm/s
C) 10 k gm/s
D) 7 k gm/s
  • 3. When no external force acts on a system, the total momentum
A) Remains constant
B) Becomes zero
C) Decreases
D) Increases
  • 4. Impulse is equal to
A) Force x time
B) Workdone
C) Force x distance
D) Mass x velocity
  • 5. The change in momentum is equal to
A) Velocity
B) Force
C) Acceleration
D) Impulse
  • 6. The S.I unit of energy is
A) Watt
B) Newton
C) Joule
D) Pascal
  • 7. If no movement occurs, work done is
A) Constant
B) Minimum
C) Maximum
D) Zero
  • 8. Which formula is correct for power?
A) P= W/t
B) P= W x t
C) P= F x d
D) P= mgh
  • 9. Kinetic energy depends on
A) Temperature
B) Height
C) Velocity
D) Time
  • 10. Which of the following is potential energy?
A) Rolling ball
B) Moving car
C) Flying bird
D) Water stored in a dam
  • 11. Mechanical energy is
A) Dimensionless
B) Constant always
C) Vector
D) Scalar
  • 12. A machine is used to
A) Reduce mass
B) Destroy energy
C) Make work easier
D) Increase energy
  • 13. Mechanical advantage is
A) Work/ Time
B) Effort/ Load
C) Load/ Effort
D) Distance/ Time
  • 14. Efficiency of a machine is always
A) Zero
B) Equal to 100%
C) Greater than 100%
D) Less than or equal to 100%
  • 15. Which of the following is a simple machine?
A) Bicycle
B) Generator
C) Lever
D) Car
  • 16. Velocity ratio is
A) Effort/ Load
B) Distance moved by effort/ Distance moved by load
C) Load/ Effort
D) Work/ Time
  • 17. The force applied to a machine is called
A) Effort
B) Power
C) Energy
D) Load
  • 18. Efficiency is expressed in
A) Watts
B) Percentage
C) Newtons
D) Joules
  • 19. Which reduces efficiency in machines?
A) Lubrication
B) Friction
C) Oil
D) Smooth surfaces
  • 20. Energy can neither be created nor destroyed but can be
A) Removed
B) Converted
C) Reduced
D) Increased
  • 21. Water freezes at
A) 32 C
B) 100 C
C) 0 C
D) 273 C
  • 22. Convert 0 C to Kelvin
A) 100 K
B) 0 K
C) 273 K
D) 32 K
  • 23. The boiling point of water in Fahrenheit is
A) 212 F
B) 180 F
C) 100 F
D) 32 F
  • 24. Which thermometer is used in hospitals?
A) Digital scale
B) Laboratory thermometer
C) Clinical thermometer
D) Barometer
  • 25. Absolute zero is
A) 0 C
B) 100 K
C) 0 K
D) 32 F
  • 26. Convert 25 C to Kelvin
A) 300 K
B) 250 K
C) 273 K
D) 298 K
  • 27. The difference between ice and steam point in Celsius is
A) 50
B) 100
C) 212
D) 180
  • 28. The instrument used to measure heat is
A) Ammeter
B) Calorimeter
C) Barometer
D) Thermometer
  • 29. Specific heat capacity is the heat required to raise
A) 1 kg by 10 C
B) 1 kg by 1 C
C) 10 kg by 1 C
D) 1 g by 10 C
  • 30. What is the specific heat capacity of water?
A) 2100
B) 3500
C) 5000
D) 4200
  • 31. Which substance has high specific heat capacity?
A) Water
B) Wood
C) Copper
D) Iron
  • 32. Heat flows from
A) Low pressure to high pressure
B) Equal temperature
C) Hot to cold
D) Cold to hot
  • 33. Matter is made up of
A) Light
B) Energy
C) Air
D) Tiny particles
  • 34. Which state has the strongest particle attraction?
A) Solid
B) Liquid
C) Plasma
D) Gas
  • 35. Diffusion is fastest in
A) Solids
B) Liquids
C) All equally
D) Gases
  • 36. Brownian motion shows that particles
A) Are stationary
B) Are large
C) Have no mass
D) Are in motion
  • 37. Which state has no fixed shape and no fixed volume?
A) Solid
B) Liquid
C) Ice
D) Gas
  • 38. Increasing temperature causes particles to
A) Disappear
B) Stop moving
C) Shrink
D) Move faster
  • 39. Which factor does not affect heat energy?
A) Mass
B) Time
C) Specific heat capacity
D) Temperature change
  • 40. The force of attraction between particles in gases is
A) Moderate
B) Strong
C) Very weak
D) Zero
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