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