CBSE Class 11 Physics Chapter 3 Motion in a Straight Line Multiple Choice Questions with Answers. MCQ Questions Class 11 Physics Motion in a Straight Line with Answers was Prepared Based on Latest Exam Pattern. Students can solve NCERT Class 11 Physics Motion in a Straight Line MCQs with Answers to know their preparation level.
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MCQ Questions Class 11 Physics Motion in a Straight Line with Answers - Set - 4
Question 1:
Motion of a particle is given by equation s = (3t3 + 7t2 + 14t + 8) m. The value of acceleration of the particle at t = 1 sec is
(a) 10 m/s2
(b) 32 m/s2
(c) 23 m/s2
(d) 16 m/s2.
Correct Answer – (B)
Question 2 :
A bus is moving with a speed of 10 m s–1 on a straight road. A scooterist wishes to overtake the bus in 100 s.
If the bus is at a distance of 1 km from the scooterist, with what speed should the scooterist chase the bus?
(a) 40 m s–1
(b) 25 m s–1
(c) 10 m s–1
(d) 20 m s–1
Correct Answer – (D)
Question 3 :
What will be the ratio of the distance moved by a freely falling body from rest in 4th and 5th seconds of journey ?
(a) 4 : 5
(b) 7 : 9
(c) 16 : 25
(d) 1 : 1.
Correct Answer – (B)
Question 4 :
The displacement x of a particle varies with time t as x = ae–at + bebt, where a, b, a and b are positive constants. The velocity of the particle will
(a) be independent of b
(b) drop to zero when a = b
(c) go on decreasing with time
(d) go on increasing with time.
Correct Answer – (D)
Question 5 :
The position x of a particle with respect to time t along x-axis is given by x = 9t2 – t3 where x is in metres and t in seconds. What will be the position of this particle when it achieves maximum speed along the +x direction?
(a) 54 m
(b) 81 m
(c) 24 m
(d) 32 m.
Correct Answer – (A)
MCQ Questions Class 11 Physics Motion in a Straight Line with Answers
Question 6 :
A particle moves a distance x in time t according to equation x = (t + 5)–1. The acceleration of particle is proportional to
(a) (velocity)3/2
(b) (distance)2
(c) (distance)–2
(d) (velocity)2/3
Correct Answer – (A)
Question 7 :
A car is moving along a straight road with a uniform acceleration. It passes through two points P and Q separated by a distance with velocity 30 km/h and 40 km/h respectively. The velocity of the car midway between P and Q is
(a) 33.3 km/h
(b) 20 2 km/h
(c) 25 2 km/h
(d) 35 km/h.
Correct Answer – (C)
Question 8 :
The motion of a particle along a straight line is described by equation x = 8 + 12t – t3 where x is in metre and t in second. The retardation of the particle when its velocity becomes zero is
(a) 24 m s–2
(b) zero
(c) 6 m s–2
(d) 12 m s–2
Correct Answer – (D)
Question 9 :
A particle moves along a straight line OX. At a time t (in seconds) the distance x (in metres) of the particle from O is given by x = 40 + 12t – t3. How long would the particle travel before coming to rest?
(a) 16 m
(b) 24 m
(c) 40 m
(d) 56 m
Correct Answer – (A)
Question 10 :
The displacement ‘x’ (in meter) of a particle of mass ‘m’ (in kg) moving in one dimension under the action of a force, is related to time ‘t’ (in sec) by t = x + 3. The displacement of the particle when its velocity is zero, will be
(a) 4 m
(b) 0 m (zero)
(c) 6 m
(d) 2 m
Correct Answer – (B)
- NCERT Solutions Class 11 Physics Chapter 1 : Physical world
- NCERT Solutions Class 11 Physics Chapter 2 : Units And Measurements
- NCERT Solutions Class 11 Physics Chapter 3 : Motion In A Straight Line
- NCERT Solutions Class 11 Physics Chapter 4 : Motion In A Plane
- NCERT Solutions Class 11 Physics Chapter 5 : Laws of Motion
- NCERT Solutions Class 11 Physics Chapter 6 : Work Energy Power
- NCERT Solutions Class 11 Physics Chapter 7 : Rotational-Motion
- NCERT Solutions Class 11 Physics Chapter 8 : Gravitation
- NCERT Solutions Class 11 Physics Chapter 9 : Mechanical Properties of Solids
- NCERT Solutions Class 11 Physics Chapter 10 : Mechanical Properties of Fluids
- NCERT Solutions Class 11 Physics Chapter 11 : Thermal Properties of Matter
- NCERT Solutions Class 11 Physics Chapter 12 : Thermodynamics
- NCERT Solutions Class 11 Physics Chapter 13 : Kinetic Theory
- NCERT Solutions Class 11 Physics Chapter 14 : Oscillations
- NCERT Solutions Class 11 Physics Chapter 15 : Waves
