Class 11 Physics — Chapter 3: Motion in a Straight Line
66 practice questions · 22 Easy · 22 Medium · 22 Hard
Practise Class 11 Physics Chapter 3, "Motion in a Straight Line", with 66 NCERT-aligned multiple-choice questions. The set is split into 22 Easy, 22 Medium and 22 Hard questions, so you can warm up on the fundamentals and then push into the exam-level problems that separate top scorers in CBSE Board exams, JEE Main, JEE Advanced and NEET UG.
"Motion in a Straight Line" is one of the chapters where numerical problem-solving, derivations and conceptual application really pays off. Each MCQ on this chapter is timed and uses exam-grade marking (+2 correct, −1 wrong, 0 skipped), training the same accuracy-under-pressure that real papers demand. Every question carries a short explanation, so a wrong answer becomes a quick lesson rather than a dead end — the fastest way to close gaps before a test.
Use this chapter as targeted revision: attempt the Easy set first to confirm your basics on Motion in a Straight Line, then move to Medium and Hard to test application and problem-solving. Your accuracy, streaks and XP save automatically, and the chapter feeds into your overall Class 11 Physics mastery score. A few sample questions are shown below; sign in free to practise all 66.
Key concepts: Motion in a Straight Line (Class 11 Physics)
This chapter covers one-dimensional kinematics — position, displacement, velocity, acceleration, the equations of uniformly accelerated motion, and motion graphs.
- Displacement vs distance
- Displacement is the change in position (vector); distance is the total path length (scalar).
- Velocity & acceleration
- Velocity is the rate of change of displacement; acceleration is the rate of change of velocity.
- Equations of motion
- For constant acceleration: v = u + at, s = ut + ½at², v² = u² + 2as.
- Motion graphs
- Slope of x–t graph = velocity; slope of v–t graph = acceleration; area under v–t graph = displacement.
- Free fall
- A special case of uniform acceleration with a = g (≈ 9.8 m/s²) directed downward.
Key formulas — Motion in a Straight Line
💡 Exam tips for Motion in a Straight Line
- The kinematic equations apply ONLY for constant (uniform) acceleration.
- Area under the velocity–time graph gives displacement; its slope gives acceleration.
Sample questions
Velocity is:
Velocity has both magnitude and direction.
Body starts from rest, a = 4 m/s². Velocity after 5 s:
v = u + at = 0 + 4(5) = 20.
Slope of position-time graph gives:
v = dx/dt.
Motion in a Straight Line — FAQs
What are the key concepts in Class 11 Physics Motion in a Straight Line?+
This chapter covers one-dimensional kinematics — position, displacement, velocity, acceleration, the equations of uniformly accelerated motion, and motion graphs. Key ideas include Displacement vs distance, Velocity & acceleration, Equations of motion, Motion graphs, Free fall.
What does Class 11 Physics Chapter 3 (Motion in a Straight Line) cover on XamBaaz?+
It covers 66 NCERT-aligned MCQs on "Motion in a Straight Line" — 22 Easy, 22 Medium and 22 Hard — each with a timed quiz and an instant explanation, suitable for CBSE Board exams, JEE Main, JEE Advanced and NEET UG.
Are these "Motion in a Straight Line" questions free to practise?+
Yes — sign in with Google to practise "Motion in a Straight Line" free. Full unlimited access is ₹999/year (limited-time launch price), with no per-chapter charges.
How should I revise "Motion in a Straight Line" for the exam?+
Start with the Easy quiz to confirm your fundamentals, then attempt Medium and Hard for application-level practice. Review each explanation, retry the questions you miss, and track your accuracy on this chapter until it is consistently high.
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