QP05 Class Test –7 July 2025
Topics Covered:
Physics Ch1: Units & Measurements
Physics Ch2: Motion in a straight line
Time: 2 Hours
Maximum Marks: 70
General Instructions:
1. This question paper contains three sections: A, B, and C.
2. Section A contains 20 multiple-choice questions of 1 mark each.
– Each question carries 1 mark.
– There is negative marking: -1 mark for every wrong answer.
3. Section B contains 10 multiple-choice questions of 3 marks each.
– Each correct answer carries 3 marks.
– There is negative marking: -1 mark for every wrong answer.
4. Section C contains 8 descriptive questions of 5 marks each.
– Attempt any 5 questions only.
– Each question carries 5 marks.
– Diagrams should be drawn wherever necessary.
– There is no negative marking in this section.
5. Use of calculator is permitted.
6. Write answers in the answer booklet provided.
Section A: MCQs (1 mark each)
(Attempt all questions. -1 mark for each incorrect answer)
1. Four pairs of initial and final positions of a body are given. Which pair gives a positive
displacement?
a) –10 m, +15 m b) –5 m, –12 m
c) 2 m, –5 m d) 2 m, 1 m
2. The position-time graph of an object in uniform motion is:
a) A straight line parallel to time axis
b) A straight line parallel to position axis
c) A straight line inclined to time axis
d) A parabola
3. Which of the following statements is TRUE?
a) An object with constant velocity always has constant speed
b) An object with constant speed always has constant velocity
c) An object with zero velocity always has zero acceleration
d) An object with zero acceleration always has zero velocity
4. Aboy starts from point A, travels to point B which is 1.5 km away, and returns to point A
in 1 hour. What is his average velocity?
a) 3 km/h b) 0 km/h c) 1.5 km/h d) 2 km/h
5. The number of significant figures in 0.04560 is:
a) 2 b) 4 c) 3 d) 5
6. Which physical quantity has the dimensional formula [ML²T⁻²]?
a) Pressure b) Work c) Force d) Momentum
7. Which of these measurements has only one significant figure?
a) 0.0030 b) 0.05 c) 6.70 d) 3.00
8. A body moving with constant acceleration has which type of velocity-time graph?
a) Parabola b) Straight line c) Exponential curve d) Horizontal line
9. If a body has zero velocity and non-zero acceleration, it is:
a) Moving with constant speed b) Changing direction of motion
c) Not moving d) At rest permanently
10. In a velocity-time graph, a horizontal line below the time axis represents:
a) Constant acceleration in negative direction
b) Constant velocity in the negative direction
c) Increasing velocity in positive direction
d) Varying retardation
11. Which of the following physical quantities is dimensionless but has a unit?
a) Relative density b) Specific heat c) Plane angle d) Refractive index
12. Which of the following graphs cannot represent a uniform motion?
a) Displacement vs time – straight line b) Velocity vs time – horizontal line
c) Acceleration vs time – zero-line d) Displacement vs time – curve
13. An object travels 6 m towards the East, then 8 m towards the North. What are the total
distance and displacement of the object?
a) Distance = 14 m, Displacement = 10 m
b) Distance = 10 m, Displacement = 14 m
c) Distance = 14 m, Displacement = 7 m
d) Distance = 10 m, Displacement = 8 m
14. The ratio of average speed to average velocity is:
a) Always 1 b) ≥ 1 c) Always < 1 d) Always > 1
15. The area under an acceleration-time graph gives:
a) Velocity b) Change in velocity c) Displacement d) Speed
16. A body moves with zero acceleration. Its velocity is:
a) Constant b) Increasing c) Decreasing d) Zero
17. If the velocity-time graph is a straight line passing through origin with positive slope, the
motion has:
a) Uniform velocity b) Constant velocity
c) Uniformly acceleration d) Retardation
18. A particle's displacement is given by
x(t) = t³ − 3t² + 2.
The acceleration at t = 2 s is:
a) 6 m/s² b) 12 m/s² c) 4 m/s² d) 2 m/s²
19. The position of a particle is given by
x(t) = 5t² - 10t + 11
At what time(s) is the particle at rest?
a) t = 1 b) t = 11 c) t = -11 d) t = -5
20. When the distance travelled by a body is directly proportional to the time taken, what
happens to its speed?
a) Becomes zero b) Remains the same
c) Increases d) Decreases
Section B: MCQs (3 marks each)
(Attempt all questions. -1 mark for each incorrect answer)
21. A train moving at 36 km/h is stopped in 20 seconds by applying brakes. What is the
distance it travels before stopping?
a) 50 m b) 100 m c) 150 m d) 200 m
22. A ball is thrown vertically upward with velocity 20 m/s. How long does it take to return
to the thrower’s hand? (acceleration due to gravity = 10 m/s)
a) 2 s b) 4 s c) 5 s d) 10 s
23. A body starts from rest and moves with uniform acceleration. If it covers 100 m in 5
seconds, what is the acceleration?
a) 4 m/s² b) 6 m/s² c) 8 m/s² d) 10 m/s²
24. A train slows down from 30 m/s to 10 m/s in 10 s. What is the distance travelled in this
time?
a) 100 m b) 200 m c) 250 m d) 300 m
25. A body falls freely from a height. What is the velocity after falling through 20 m? (g = 10
m/s²)
a) 10 m/s b) 15 m/s c) 20 m/s d) 25 m/s
26. A car moving at 20 m/s is stopped by applying brakes in 5 seconds. What is the
retardation?
a) 4 m/s² b) 5 m/s² c) 6 m/s² d) 2 m/s²
27. For the motion with uniform velocity, the slope of the velocity-time graph is equal to
a) 1 m/s b) Zero c) Initial velocity d) Final velocity
28. If x = a + bt + ct², where x is in metre and t in second, then what is the unit of ‘c’?
(a) m/s (b) m/s² (c) kg·m/s (d) m²/s
29. The result of (3.142 × 1.6) is to be reported with correct significant figures. What is the
correct answer?
a) 5.0272 b) 5.03 c) 5.0 d) 5.027
30. Which of the following operations violates the rule of significant figures?
a) 4.56 + 1.4 = 5.96 b) 4.56 × 1.4 = 6.384
c) 12.0 – 0.24 = 11.76 d) 3.00 × 2.0 = 6.0
31. Which of the following expressions is dimensionally incorrect?
a) s = vt – ½ at² b) a = (v – u)/t
c) s = (u + v)t / 2 d) F = mv²
32. A body travels half of a total distance with speed 20 m/s and the other half with speed
10 m/s. What is the average speed?
a) 15 m/s b) 13.3 m/s c) 12 m/s d) 11 m/s
33. If v = A sin(ωt), where v is in m/s and t in seconds, what is the unit of ω?
(a) m/s (b) 1/s (c) rad·s (d) s
34. The unit of universal gravitational constant G in the equation F = G(m₁m₂/r²) is:
(a) N·m²/kg² (b) N/kg²·m² (c) m³/kg·s² (d) kg·m/s²
35. The area under an acceleration-time graph between t = 0 and t = 6 s is 30 m/s. If initial
velocity was –10 m/s, what is the final velocity?
a) –40 m/s b) –10 m/s c) +10 m/s d) +20 m/s
36. A car moves at 20 m/s. Driver sees obstacle 100 m away and applies brakes after 1 s.
Braking deceleration is 5 m/s². Will the car hit the obstacle?
a) Yes b) No c) Hits just at 100 m d) Not enough data
37. A car is moving at a speed of 54 km/h and is brought to rest uniformly in 90 seconds.
What is the distance it travels before stopping?
a) 600 m b) 720 m c) 675 m d) 540 m
38. Velocity time graph of a body is given below. What is the displacement in time 0s to 7s.
a) 6 m b) 45 m c) 30 m d) 36 m
39. The position - time graph of two objects A and B are shown below.
What is the ratio of velocities A and B?
a) 3
b) 1
c) 1/ √ 3
d) √ 3
40. Left Blank Intentionally
Section C: Descriptive Questions (5 marks each)
(Attempt any 5 out of the following 8 questions)
1. (a) Define uniform motion. [1 mark]
(b) Draw the velocity – time graph of a uniformly accelerated motion. [2 marks]
(c) Using the graph obtain the equation x = vt + ½at² [2 marks]
2. A body falling under the effect of gravity is said to be in free fall.
a. Draw the velocity-time graph for a freely falling object. [2 marks]
b. Define uniform acceleration. [1 mark]
c. From the given figures, identify the figure which represents uniformly accelerated
motion [2 marks]
3. Position – time graph of a body is given.
a) Estimate the velocity during the time interval t = 2s to t = 3s. [2 marks]
b) Displacement of an object is proportional to t3. Show that its
acceleration is increasing with time. [3 marks]
4. Acceleration – time graph of a body starts from rest as shown below:
a) What is the use of the acceleration-time graph? [1 mark]
b) Draw the velocity – time graph using the above graph. [2 marks]
c) Find the displacement in the given interval of time from 0 to 3 seconds.
[2 marks]
5. When breaks are applied on a moving vehicle, it stops after travelling a distance. This
distance is called stopping distance.
a) Derive an expression for stopping distance in terms of initial velocity (u) and
retardation (a). [2 marks]
b) If the initial speed is doubled keeping the retardation same, by how much will the
stopping distance change? [3 marks]
