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