Motion Test-01

This is Motion Test-01 for CBSE class 09 Science.. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

Which of the following is a vector quantity? A Retardation B Speed C Force D Distance

A
(b) and (c) are correct
B
All of these
C
(a) and (c) are correct
Correct
D
(a), (b) and (c) are correct

Which of the is true for displacement? A It cannot be Zero B Its magnitude is greater than the distance travelled by the object C It’s the shortest distance between initial & final position D It is a vector quantity

A
All of these
B
(a), (b) and (c) are correct
C
(b) and (c) are correct
D
(a) and (b) are correct
Correct

Statement A: When a body moves with uniform speed, then the average speed is same as instantaneous speed. Statement B: Average speed is less than average velocity. Which of the above statement is true

A
Statement A
Correct
B
neither statement A nor B.
C
Statement B
D
both a and b

A car is moving with uniform speed and covers 100m in 50 second find the speed.

A
4m/s
B
1m/s
C
2m/s
Correct
D
8m/s

Instantaneous speed of a vehicle is measured by

A
odometer
B
none of these.
C
both a and b
D
speedometer
Correct

A particle covers equal distance in equal interval of time. It is said to be

A
none of these
B
at rest
C
moving with constant speed (ans)
Correct
D
moving with constant acceleration

Statement A: A curved line in a speed – time graph means non-uniform motion. Statement B : A curved line in a velocity – time graph means uniform acceleration

A
statement A is true, B is false
Correct
B
statement B is false, A is true
C
Both the statement A and B are true
D
neither statement A nor Statement B is true.

A train 120m long moving on a straight and level track with uniform speed passes a pole in 6 seconds. Find the time it will take to cross a 50m long bridge.

A
9 second
B
8 second
C
9.5 second.
D
8.5 second
Correct

Match the following with correct response. (1) Speed (2) Velocity (3) Acceleration (4) Average speed (A) Displacement / Time taken (B) Total distance covered / Total time taken (C) Change in velocity / Time taken (D) Distance covered / Time taken

A
1-D, 2-A, 3-C, 4-B
Correct
B
1-C, 2-B, 3-D, 4-A
C
1-B, 2-D, 3-A, 4-C
D
1-A, 2-C, 3-B, 4-D

Which of the following is an example of uniform motion? A The motion of car in the busy road B The motion of a satellite around the planet C The motion of moon around the earth D The motion of any particle on the arm of a clock

A
All of these
B
(a) and (b) are correct
C
(b), (c) and (d) are correct
Correct
D
(b) and (c) are correct

Which of the following physical quantity is not present in first equation of motion?

A
displacement
Correct
B
velocity
C
time
D
acceleration

Which of the following is the case of accelerated motion?

A
motion of the athletes in a straight line.
B
body moving with constant velocity
C
both a and b
Correct
D
uniform circular motion

What is the quantity which is measured as the area occupied in the velocity – time graph?

A
distance
B
displacement distance speed acceleration
Correct
C
acceleration
D
speed

What is the nature of the distance – time graphs for uniform motion of an object

A
straight line inclined to distance axis.
B
curved line
C
straight line inclined to time axis
Correct
D
parabola

What can you say about the motion of an object whose distance – time graph is a straight line parallel to time axis?

A
object is moving with constant speed
Correct
B
object is at rest
C
both a and b
D
object is uniformly accelerated