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WorksheetsApplied science - quizz 99Q
Total questions: 99
Worksheet time: 50mins
Name
Class
Date
1.
Advantage of dimension is
a)
To set up relation between physical quantities
b)
To convert quantity in one standard into other.
c)
To prove various laws or rules.
d)
All of the above
2.
Dimension of pressure is
a)
[M L T-1]
b)
[ML-1 T-2]
c)
[M0L3 T0]
d)
[M L2 T-2]
3.
Dimension of surface tension is a
a)
[M L T-1]
b)
[ML-1 T-2]
c)
[M0L3 T0]
d)
[ML0 T -2]
4.
Dimension of work is
a)
[M L T-1]
b)
[ML-1 T-2]
c)
[M0L3 T0]
d)
[M L2 T-2]
5.
Following is not having any unit
a)
energy
b)
voltage
c)
efficiency
d)
force
6.
The following is not a metric system
a)
CGS
b)
SI
c)
MKS
d)
FPS
7.
The prefix for nano is
a)
2022-10-03 00:00:00
b)
2022-10-09 00:00:00
c)
2022-10-12 00:00:00
d)
2022-10-06 00:00:00
8.
The SI unit of current is
a)
joule
b)
erg
c)
ampere
d)
volts
9.
The SI unit of temperature is
a)
Fahrenheit
b)
Centigrade
c)
Kelvin
d)
Franklin
10.
The SI unit of velocity is
a)
ms-1
b)
ms-2
c)
ms-3
d)
ms-4
11.
The following of which is not a vector quantity
a)
force
b)
work
c)
velocity
d)
momentum
12.
The SI unit of momentum is a.
a)
kg N ms-1
b)
gram
c)
kg ms-1
d)
Nm
13.
The unit of torque is
a)
Nm
b)
Nm/s
c)
mN
d)
N
14.
The unit of atmospheric pressure is
a)
bar
b)
torr
c)
pa
d)
all the above
15.
Nm is the unit for
a)
Pressure
b)
Torque
c)
Power
d)
Energy
16.
The prefix for micro is
a)
2022-10-03 00:00:00
b)
2022-10-09 00:00:00
c)
2022-10-12 00:00:00
d)
2022-10-06 00:00:00
17.
The prefix for milli is
a)
2022-10-03 00:00:00
b)
2022-10-09 00:00:00
c)
2022-10-12 00:00:00
d)
2022-10-06 00:00:00
18.
The prefix for Pico is
a)
2022-10-03 00:00:00
b)
2022-10-09 00:00:00
c)
2022-10-12 00:00:00
d)
2022-10-06 00:00:00
19.
1 Kg = g.
a)
10
b)
100
c)
1000
d)
10000
20.
1 g = Kg.
a)
0.1
b)
0.01
c)
0.001
d)
0.0001
21.
The SI unit of Luminous intensity is
a)
Kelvin
b)
Meter
c)
Ampere
d)
Candela
22.
The SI unit of Quantity of matter is
a)
Kelvin
b)
Mole
c)
Ampere
d)
Candela
23.
The prefix for Mega is
a)
102
b)
103
c)
106
d)
109
24.
The prefix for centi is
a)
2022-10-02 00:00:00
b)
2022-10-09 00:00:00
c)
2022-10-12 00:00:00
d)
2022-10-06 00:00:00
25.
Dynamics is a study of
a)
motion of
b)
position of
c)
All the above
d)
none
26.
Unit of Velocity is
a)
m.s
b)
m/s/s
c)
m/s
d)
mm.s
27.
The rate of change of velocity is called
a)
work
b)
acceleration
c)
momentum
d)
moment
28.
The object remains in the state of rest or motion
a)
inertia
b)
amnesia
c)
energy
d)
impulse
29.
The equation for momentum is
a)
m x v
b)
m x a
c)
m x t
d)
v x t
30.
A force of 50 Newton is applied on a block of 4 kg.
a)
12.5
b)
20.6
c)
15.5
d)
10.5
31.
One Newton is equal to
a)
5 Pascal
b)
105dynes
c)
100 dynes
d)
107 dynes
32.
1 gm wt is equal to
a)
980 dynes
b)
1000 dynes
c)
100 kilograms
d)
20 joules
33.
By using dimension
a)
Relation can be set up between physical quantities.
b)
Conversion of quantity in one standard into other can be done.
c)
Various laws or rules can be proved.
d)
All of the above.
34.
The dimension of angular acceleration is
a)
[M 2 L o T -3]
b)
[M 0 L 1T -2]
c)
[M 0 L 0T -2]
d)
[M o L o T -1]
35.
1 kg.wt is equal to
a)
9.5 N
b)
9.8 N
c)
3.6 N
d)
9 N
36.
The dimension of specific heat capacity is
a)
M0 L2 T-2 K-1
b)
M0 L1 T-2 K-
c)
M1 L2 T-2 K-1
d)
M0 L1 T-2
37.
The equation for angular velocity is
a)
w = q/t
b)
w = r x v
c)
a = v/t
d)
v = a/w
38.
The elongated spring possesses
a)
kinetic energy
b)
potential
c)
hydraulic
d)
magnetic
39.
The equation for kinetic energy
a)
½ mv2
b)
1/4 mv2
c)
1/8 av2
d)
1/4 ma2
40.
The equation for potential energy is
a)
mag
b)
mgh
c)
gha
d)
yma
41.
The angular velocity for n revolutions is
a)
pN/30 radians/second
b)
pN/30
c)
N/30
d)
p/30
42.
According to which law the rate of change of
a)
Newton’s 2nd
b)
Newton’s
c)
Newton’s 3rd
d)
Newton’s law
43.
Momentum is proportional to force applied on it?
a)
3rd law
b)
1st law
c)
2 nd law
d)
of conservation
44.
The gravitational acceleration
a)
9.81 m/s
b)
9.81 m/s2
c)
9.81 kg/s
d)
5.8 m/s2
45.
The equation for work is
a)
F x S
b)
M x a
c)
V x S
d)
S/t
46.
The unit of work in SI is
a)
Nm
b)
Pa
c)
watt
d)
BHP
47.
The unit of power is
a)
J/s
b)
Nm
c)
ergs
d)
jewels
48.
The power of 1HP is equal to
a)
560 W
b)
30 calories
c)
170 Nm
d)
746 W
49.
The dimension of energy is
a)
[M1L2 T-2]
b)
[ML2 T]
c)
[M1L T-2]
d)
[M1L2 T]
50.
A body of mass 1 kg starts falling under gravity from a height of 10 m. The potential energy is
a)
9.8 joules
b)
170 ergs
c)
98 joules
d)
78 ergs
51.
Composition is a method of finding the
a)
direction
b)
equilibrium
c)
resultant
d)
Magnitude
52.
For applying parallelogram law, the forces have to be
a)
non collinear
b)
concurrent
c)
non concurrent
d)
non coplanar
53.
The resultant of the two forces 8N and 6N acting at an angle of 600 is
a)
8N
b)
12.16N
c)
90N
54.
Resolution is a process of
a)
finding components of a resultant force
b)
dividing diagonal into half
c)
adding all forces
d)
adding all sides
55.
The equation for component of resultant force F in
a)
F cos
b)
F sin
c)
V cos
d)
M cos
56.
The equation for component of resultant force F in
a)
F tan
b)
F cos
c)
F sin
d)
F cot
57.
The following is not a vector quantity
a)
force
b)
work
c)
displacement
d)
Velocity
58.
The forces on a rope during tug of war represent
a)
concurrent forces
b)
collinear forces
c)
coplanar forces
d)
non co planar forces
59.
The forces on a rod resting against a wall represent
a)
coplanar concurrent forces
b)
inductive
c)
magnetic
d)
Collinear
60.
The weight of benches in a class room represents
a)
coplanar forces
b)
non coplanar parallel
c)
non concurrent forces
d)
collinear forces
61.
The force opposite to resultant is called as
a)
equivalent
b)
equilibrant
c)
composition
d)
Resolution
62.
The following is an analytical method of finding resultant
a)
Triangle law
b)
Parallelogr am law
c)
Lami’s
d)
Varignon’s
63.
When the two concurrent forces P and Q are forming two sides of a rectangle, then the resultant force is
a)
(P + Q)
b)
(P + Q)2
c)
(P – Q)
d)
(P - Q)2
64.
Resultant is a
a)
common force
b)
single force that produces same effect as many
c)
single force that has double the effect of other forces
d)
strong force of many non concurrent forces
65.
The following is a vector quantity
a)
Displacement
b)
Speed
c)
Work
d)
Time
66.
The resultant of all forces acting on a body in equilibrium is
a)
zero
b)
one
c)
maximum
d)
equal to one force
67.
The single force that cancels total effect of a
a)
Equilibrium
b)
Equilibrant
c)
Resultant
d)
Result
68.
For equilibrium following statement is true.
a)
The algebraic sum of moments of forces about any point in their plane has to be zero.
b)
The algebraic sum of moments of forces about any point in their plane has to be infinity
c)
Forces have to be non coplanar
d)
Forces have to be non collinear
69.
Two forces each of magnitude 10 N making an
a)
10 N
b)
100 N
c)
5 N
d)
14 N
70.
The resultant of two forces acting on a body
a)
they are equal
b)
they are
c)
they are not
d)
they are in
71.
Lami’s theorem can be applied only when forces
a)
concurrent
b)
concurrent and equilibrium
c)
non concurrent
d)
non collinear
72.
Vectors in space are called as
a)
2 dimensional vectors
b)
3
c)
concurrent vectors
d)
coplanar vectors
73.
The resultant of the two forces 9N and 10N acting
a)
8N
b)
14.66N
c)
16.46N
74.
The process of inverse of composition of forces is
a)
Resolution of forces
b)
Equilibrium of forces
c)
Resultant force
d)
None of these
75.
The single force, which sets in the opposite
a)
Resolution of forces
b)
Equilibrium of forces
c)
Resultant force
d)
None of these
76.
The single force, which produces the same effect
a)
Resolution of
b)
Equilibrium
c)
Resultant
d)
None of these
77.
The following is not a vector quantity
a)
force
b)
mass
c)
displacement
d)
velocity
78.
The following is not a vector quantity
a)
force
b)
velocity
c)
displacement
d)
time
79.
Two forces of 10 N and 15 N act simultaneously at a point. Find the resultant force, if the angle between the two forces be 30°
a)
14.17N
b)
24.17 N
c)
42.17N
d)
41.17N
80.
A push of 18 N and pull of 35 N act simultaneously at a point. Find the resultant of two forces, if the angle between the two forces be 135°.
a)
10.4N
b)
19.4N
c)
49.4N
d)
25.7N
81.
Equilibrium of forces is
a)
single force which sets in the opposite direction to the resultant
b)
single force that produces same effect as many
c)
single force that has double the effect of other forces
d)
strong force of many non concurrent forces
82.
The Resultant formula in Parallelogram law of forces is
a)
R2 = P2 + Q2 +
b)
R2 = P2 + Q2
c)
R2 = P2 - Q2 -
d)
R2 = P2 - Q2 -
83.
If a number of forces acting upon keep the body in equilibrium, then
a)
Electric
b)
sum of the moment of all these forces from any point is equal to infinity
c)
Sum of moment centers is zero.
d)
Product of all moments is zero
84.
Two equal, unlike, parallel forces, on the same straight line, will constitute
a)
Electric
b)
an impulse
c)
a couple
d)
Product of all
85.
According to Lami’s theorem, if 3 forces acting at a
a)
Electric
b)
tangent of
c)
sine of angle
d)
other force
86.
The equation for moment of force F acting on a
a)
Electric
b)
F / l
c)
F + l
d)
F x l
87.
For rotatory equilibrium of a rigid body acted upon by a number of coplanar concurrent forces, the sum of all clockwise moments must be equal to
a)
Electric
b)
product of all clockwise moments about any point in the plane
c)
sum of all anti clockwise moments about any point in the plane of
d)
none of the above
88.
Peddling of a bicycle is an application of a
a)
Electric
b)
a moment producing translator effect.
c)
a force producing momentum.
d)
Lami’s
89.
A body of mass 5 kg is suspended by two strings attached to two points in the same horizontal line. When the body is in equilibrium the strings are found to make 30 degrees and 60 degrees with the vertical. The tensions in the strings are
a)
Electric
b)
24.5 kg and 42.4 kg
c)
zero
d)
30 N and 45 N
90.
The dimension of torque is
a)
ML2T-2
b)
MLT
c)
MLT-3
d)
M-1LT
91.
Two boys weighing 30 kg and 40 kg sit on either side of a see-saw at distances of 4m and 1.5 m from the fulcrum. Where must a third body weighing 45 kg sit to secure balance
a)
1.55 m
b)
1.44 m
c)
1.33 m
d)
1.66 m
92.
The moment of a couple is zero when
a)
The lines of action of two forces constituting the couple coincide.
b)
the lines of action of two forces constituting the couple intersect each other
c)
the lines of action of two forces constituting the couple are parallel
d)
the lines of action of two forces constituting the couple are non collinear
93.
Why wrenches are provided with long handles?
a)
to minimize applied force
b)
to make more
c)
to reduce tension
d)
to make moment zero
94.
The sign convention of moment of a force is
a)
Anticlockwise moments are taken negative and clockwise moments are positive
b)
Anticlock wise moments are taken positive and clockwise moments are
c)
clockwise moments are taken zero
d)
it has no sign at all
95.
Two like parallel forces of 80N and 100 N act vertically downwards at the ends of a light rod of
a)
170 N
b)
180N
c)
50 N
d)
100 N
96.
The forces, whose lines of action lie on the same plane is a
a)
Collinear forces
b)
Concurrent forces
c)
Coplanar forces
d)
None of these
97.
The forces, whose lines of action lie on the same line is
a)
Collinear forces
b)
Concurrent forces
c)
Coplanar forces
d)
None of these
98.
The forces, which meet at one point is
a)
Collinear forces
b)
Concurrent forces
c)
Coplanar forces
d)
None of these
99.
Coplanar forces are
a)
The forces, whose lines of action lie on the same line
b)
The forces, whose lines of action lie on the same plane
c)
The forces, which meet at one point
d)
None of these
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