Motion in a Straight Line — Important Questions
CBSE · Class 11 · Physics
110 important questions from Motion in a Straight Line for CBSE Class 11 Physics, with answers. Covers Important Examples and Applications.
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Important Questions from Motion in a Straight Line
Which graph represents motion with zero acceleration?
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A straight line parallel to the time axis on a velocity-time graph
For uniform motion, acceleration is zero and the velocity remains constant. In a velocity-time graph, a constant velocity is shown by a straight line parallel to the time axis. This is the graph that represents zero acceleration.
What does the area under a velocity-time graph represent?
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Displacement
The area under a velocity-time curve represents the total displacement of an object during that time interval.
What is the difference between speed and velocity?
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Velocity includes direction, speed does not
Velocity is a vector quantity that includes both magnitude and direction, while speed is a scalar quantity representing only magnitude.
Which kinematic equation relates velocity, acceleration, and displacement?
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v² = v₀² + 2ax
This equation relates final velocity, initial velocity, acceleration, and displacement without explicitly involving time.
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Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
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