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Motion in a Straight Line Practice Questions

Class 11 · Physics · 714 free MCQs with instant results and detailed explanations.

714
Total
354
Easy
301
Medium
59
Hard

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Topics in Motion in a Straight Line

Equations of Motion 127
Position and Displacement 275
Acceleration 136
Velocity and Speed 176

Sample Questions from Motion in a Straight Line

Here are 10 sample questions. Start a quiz to get randomized questions with scoring.

Q1
Easy
An object moves from position A to position B, covering a distance of 30 meters to the east. What is the position vector of the object if it starts from the origin?
A. 30 m east
B. 30 m west
C. 30 m north
D. 0 m
Show Answer & Explanation
Correct Answer: A
The position vector represents the location of an object with respect to the origin. Moving 30 m to the east from the origin means the position vector is 30 m east.
Q2
Easy
If an object is at rest, what would be its displacement after 10 seconds?
A. 10 m
B. 0 m
C. 5 m
D. 10 m west
Show Answer & Explanation
Correct Answer: B
If an object is at rest, its position does not change over time, resulting in zero displacement.
Q3
Easy
Which of the following describes the position of an object?
A. Distance traveled
B. Location relative to a reference point
C. Speed of the object
D. Change in velocity
Show Answer & Explanation
Correct Answer: B
Position refers to the specific location of an object concerning a reference point.
Q4
Medium
If an object moves 50 m east and then 30 m north, what is the resultant displacement from the starting point?
A. 80 m
B. 70.71 m
C. 50 m
D. 60 m
Show Answer & Explanation
Correct Answer: B
Using Pythagorean theorem, displacement = √(50² + 30²) = √(2500 + 900) = √3400 = 70.71 m.
Q5
Medium
A cyclist moves 60 km from point A to point B and then returns to point A. What is the distance traveled and what is the displacement?
A. 120 km, 0 km
B. 120 km, 60 km
C. 60 km, 60 km
D. 60 km, 0 km
Show Answer & Explanation
Correct Answer: A
Distance traveled is total path length (60 km + 60 km = 120 km). Displacement is zero as the start and end points are the same.
Q6
Medium
A sprinter runs 100 m in 10 seconds. What is the average speed of the sprinter during this time?
A. 5 m/s
B. 10 m/s
C. 15 m/s
D. 20 m/s
Show Answer & Explanation
Correct Answer: B
Average speed is total distance divided by total time. Average speed = 100 m / 10 s = 10 m/s.
Q7
Medium
In a motion diagram, if an object is represented by equally spaced points, what does this indicate about its motion?
A. Uniform acceleration
B. Uniform speed
C. Deceleration
D. Variable speed
Show Answer & Explanation
Correct Answer: B
Equally spaced points in a motion diagram indicate that the object is moving at a constant speed.
Q8
Hard
A runner runs a distance of 200 m towards the east and then turns back and runs 50 m towards the west. What is the runner's displacement?
A. 150 m east
B. 250 m east
C. 150 m west
D. 50 m east
Show Answer & Explanation
Correct Answer: A
Displacement is the net distance in a straight line; calculate the difference in the eastward position.
Q9
Hard
Two cars start from the same point and move in opposite directions. Car A moves at 30 m/s and Car B at 20 m/s. What is the distance between them after 5 seconds?
A. 250 m
B. 200 m
C. 150 m
D. 100 m
Show Answer & Explanation
Correct Answer: A
Total distance is the sum of the distances traveled by both cars in 5 seconds.
Q10
Hard
An object moves from position A to position B in 10 seconds and returns to position A in another 10 seconds. What is the total displacement of the object?
A. 0 m
B. 10 m
C. 20 m
D. 5 m
Show Answer & Explanation
Correct Answer: A
Displacement is the shortest distance from initial to final position. Here, the object returns to its starting point, making the total displacement zero.

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Motion in a Straight Line — Class 11 Physics Practice Questions Online

This page contains 714 practice MCQs for the chapter Motion in a Straight Line in Class 11 Physics. The questions are organized by difficulty — 354 easy, 301 medium, 59 hard — so you can choose the right level for your preparation.

Every question includes a detailed explanation to help you understand the concept, not just memorize answers. Take a timed quiz to simulate exam conditions, or practice at your own pace with no time limit. This chapter covers 4 topics, giving you comprehensive coverage of the entire chapter.