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