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STUDYNEST · CLASS 11 PHYSICS

QUESTION PAPER 1

Chapter 2: Motion in a Straight Line

Original chapter-specific practice paper

Maximum Marks: 40Suggested time: 60 minutes
Instructions: Answer all 20 questions. Marks are shown in brackets. Show calculation steps and units. Original practice questions, not an official examination paper.

Section A · 1-mark questions — 8 × 1 = 8 marks

  1. Define instantaneous velocity.[1]
  2. Slope of an x-t graph?[1]
  3. Acceleration at constant velocity?[1]
  4. Can speed be negative?[1]
  5. SI unit of acceleration?[1]
  6. Runner returns to start: net displacement?[1]
  7. Equation linking v,u,a,t?[1]
  8. Area under v-t graph?[1]

Section B · 2-mark questions — 6 × 2 = 12 marks

  1. 150 m in 30 s: average speed?[2]
  2. Velocity 4 to 16 m/s in 6 s: acceleration?[2]
  3. 10 m/s car brakes at 2 m/s²: stopping time?[2]
  4. Convert 90 km/h to m/s.[2]
  5. Move 8 m east then 3 m west: distance/displacement?[2]
  6. From rest at 3 m/s² for 4 s: final speed?[2]

Section C · 3-mark questions — 4 × 3 = 12 marks

  1. u=6 m/s, a=2 m/s², t=5 s: find v,s.[3]
  2. Train at 20 m/s stops in 5 s: a and distance?[3]
  3. Velocity rises 2 to 14 m/s in 6 s: a and displacement?[3]
  4. u=12 m/s, a=1.5 m/s² for 8 s: v,s?[3]

Section D · 4-mark questions — 2 × 4 = 8 marks

  1. Car at 25 m/s brakes at 5 m/s²: stop time and distance?[4]
  2. x=4+3t−t²: v(t), a and time at rest?[4]

End of paper — review signs, units and working.

Open marking scheme and model answers

Attempt the paper before opening the key. Multi-mark answers show expected principles and results; award partial credit for valid intermediate steps.

Q1 · 1 mark
v=dx/dt.
Suggested allocation by section: 1-mark questions earn one mark for the correct fact, formula or unit; 2-mark questions normally award one mark for the principle/formula and one for the explanation or result; 3-mark questions award credit for the relation, working/reasoning and result with unit; 4-mark questions award credit for the principle, equation, working and final answer/interpretation. Accept equivalent correct methods.
Q2 · 1 mark
Velocity.
Suggested credit: award marks for the correct principle, working and result as applicable; accept equivalent correct methods.
Q3 · 1 mark
Zero.
Suggested credit: award marks for the correct principle, working and result as applicable; accept equivalent correct methods.
Q4 · 1 mark
No.
Suggested credit: award marks for the correct principle, working and result as applicable; accept equivalent correct methods.
Q5 · 1 mark
m s⁻².
Suggested credit: award marks for the correct principle, working and result as applicable; accept equivalent correct methods.
Q6 · 1 mark
Zero.
Suggested credit: award marks for the correct principle, working and result as applicable; accept equivalent correct methods.
Q7 · 1 mark
v=u+at.
Suggested credit: award marks for the correct principle, working and result as applicable; accept equivalent correct methods.
Q8 · 1 mark
Signed displacement.
Suggested credit: award marks for the correct principle, working and result as applicable; accept equivalent correct methods.
Q9 · 2 marks
5 m/s.
Suggested credit: award marks for the correct principle, working and result as applicable; accept equivalent correct methods.
Q10 · 2 marks
2 m/s².
Suggested credit: award marks for the correct principle, working and result as applicable; accept equivalent correct methods.
Q11 · 2 marks
5 s.
Suggested credit: award marks for the correct principle, working and result as applicable; accept equivalent correct methods.
Q12 · 2 marks
25 m/s.
Suggested credit: award marks for the correct principle, working and result as applicable; accept equivalent correct methods.
Q13 · 2 marks
11 m; 5 m east.
Suggested credit: award marks for the correct principle, working and result as applicable; accept equivalent correct methods.
Q14 · 2 marks
12 m/s.
Suggested credit: award marks for the correct principle, working and result as applicable; accept equivalent correct methods.
Q15 · 3 marks
v=16 m/s; s=55 m.
Suggested credit: award marks for the correct principle, working and result as applicable; accept equivalent correct methods.
Q16 · 3 marks
a=−4 m/s²; s=50 m.
Suggested credit: award marks for the correct principle, working and result as applicable; accept equivalent correct methods.
Q17 · 3 marks
a=2 m/s²; displacement=48 m.
Suggested credit: award marks for the correct principle, working and result as applicable; accept equivalent correct methods.
Q18 · 3 marks
v=24 m/s; s=144 m.
Suggested credit: award marks for the correct principle, working and result as applicable; accept equivalent correct methods.
Q19 · 4 marks
5 s; 62.5 m; acceleration opposes motion.
Suggested credit: award marks for the correct principle, working and result as applicable; accept equivalent correct methods.
Q20 · 4 marks
v=3−2t; a=−2 m/s²; t=1.5 s.
Suggested credit: award marks for the correct principle, working and result as applicable; accept equivalent correct methods.