MCQGeeks
0 : 0 : 1
CBSE
JEE
NTSE
NEET
English
UK Quiz
Quiz
Driving Test
Practice
Games
CBSE
Class 9 Science
Work And Energy
Quiz 2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Find the momentum of the body of mass 10 kg having a kinetic energy 20J?
0%
A. 10 kgm/s
0%
B. 20 kgm/s
0%
C. 1.44 kgm/s
0%
D. None of these
A man of 50 kg jumps up to a height of 1.2 m. What is his potential energy at the highest point?
0%
A. 50 J
0%
B. 60 J
0%
C. 500 J
0%
D. 600 J
A truck driver pushes the acceleration to peddle and increase its speed from v to 2v on the level Road. The mass of the Truck is M. The potential energy of the truck?
0%
A. does not change
0%
B. PE of the truck becomes four times of the initial Potential energy
0%
C. none of these
Work done by the acceleration peddle?
0%
A. $1.5Mv^2$
0%
B. PE of the truck becomes four times of the initial Potential energy
0%
C. $Mv^2$
Which of the following does not have unit as Joule?
0%
A. Work done
0%
B. Kinetic energy
0%
C. Potential energy
0%
D. Heat
0%
E. Force
Two bodies X and Y have same momentum. Mass of X is greater then mass of Y. Which of the two bodies will have higher kinetic energy?
0%
A. X
0%
B. Y
0%
C. Both will have the same KE
An object is falling freely from the height H.After it has fallen a height $\frac{3H}{4}$, it will possess?
0%
A. more potential and less kinetic energy
0%
B. less potential and high kinetic energy
0%
C. same potential and kinetic energy
0%
D. only kinetic energy
which of these is not a vector quantity?
0%
A. Potential Energy
0%
B. Momentum
0%
C. Force
0%
D. Velocity
A car is accelerated on a levelled road and attains a velocity 4 times of its initial velocity. In this process the potential energy of the car
0%
A. does not change
0%
B. becomes twice to that of initial
0%
C. becomes 4 times that of initial
0%
D. becomes 16 times that of initial
Which one of the following is not the unit of energy?
0%
A. joule
0%
B. newton metre
0%
C. kilowatt
0%
D. kilowatt hour
The work done on an object does not depend upon the
0%
A. displacement
0%
B. force applied
0%
C. angle between force and displacement
0%
D. initial velocity of the object
The kinetic energy of a body depends
0%
on its mass only
0%
neither in its mass nor on its speed
0%
on its speed only
0%
on its mass as well as on its speed
Work and energy have different units.
0%
True
0%
False
As a body rolls down an inclined plane, it has
0%
only kinetic energy
0%
neither kinetic energy and potential energy
0%
only kinetic energy and potential energy
0%
only potential energy
A stone tied to a string is whirled in a circle. The work done by the weight of the stone for a small displacement is zero.
0%
True
0%
False
A person stands for a long time. Work is done by forces operating inside his body.
0%
True
0%
False
A force of 10 N acts on a body towards the east. The work done by the force while the body moves through 1 m in the east-north direction (midway between east and north) is
0%
\(\frac{10}{\sqrt{2}}J\)
0%
\(-10J\)
0%
\(-\frac{10}{\sqrt{2}}J\)
0%
\(10\sqrt{2}J\)
When the speed of a particle is doubled, its kinetic energy
0%
becomes half
0%
remains the same
0%
gets doubled
0%
becomes 4 times
A body of mass 2 kg is dropped from a height of 1 m. Its kinetic energy as it reaches the ground is
0%
19.6 J
0%
19.6 N
0%
19.6 kg
0%
19.6 m
When a stone tied to a string is whirled in a circle, the work done on it by the string is
0%
zero
0%
negative
0%
positive
0%
undefined
0 h : 0 m : 1 s
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
0
Answered
0
Not Answered
0
Not Visited
Correct : 0
Incorrect : 0
Report Question
×
What's an issue?
Question is wrong
Answer is wrong
Other Reason
Want to elaborate a bit more? (optional)
Support mcqgeeks.com by disabling your adblocker.
×
Please disable the adBlock and continue.
Thank you.
Reload page