Physics: Measurement worksheet
Physics: Measurement worksheet.
You can find MCQ(Multiple choice questions) or worksheet related to Measurement in Physics.
Check your knowledge by choosing a best answer among given four alternatives.
The correct answer is given at the bottom of the page.
Measurement worksheet:
1> The Fundamental units in MKS system are:
a> 3
b> 4
c> 6
d> 7
2> The fundamental units in S.I. system are:
a> 3
b> 6
c> 7
d> 9
3> The Latest standard of length is
a> Light Year.
b> Distance traveled by sound in air.
c> Distance traveled by light in vaccum.
d> Wavelength of orange light of KR 86.
4> The dimensional formula of impulse is:
a>
b>
c>
d>
5> The dimensional formula of torque is:
a>
b>
c>
d>
6> The dimensional formula of coefficient of viscosity is:
a>
b>
c>
d>
7> The dimensional formula of angular velocity is:
a>
b>
c>
d>
8> The force on a sphere of radius “a” moving in a medium with velocity v is given
by
the dimensions of
are:
a>
b>
c>
d>
9> Which of the following has the dimensions pressure:
a>
b>
c>
d>
10> The position x of a particle at time t is given by:
where
is a constant and a >0. The dimensions of
a>
b>
c>
d>
11> The dimensions of impulse are equal to that of:
a> Force
and “a” are:
b> Pressure
c> Angular momentum
d>Linear momentum
12> The dimensions of stress are:
a>
b>
c>
d>
13> the dimensions of strain are:
a>
b>
c>
14> The dimensions of surface tension are:
a>
b>
c>
d>
15> The dimension of surface tension are same a that of:
a>Moment of inertia.
b>Force constant
c> Tension
4>Torque
16> The dimensions of Plank’s constant “h” are:
a>
b>
c>
d>
17> The dimensions of Plank’s constant “h” are same as that of:
a>Linear momentum
b>Energy
c>Angular momentum
d>Boltzmann’s constant
18> The dimensions of volume of liquid flowing per second is:
a>
b>
c>
d>
19> The dimensions of mass flowing per second is:
a>
b>
c>
d>
20> The dimensions of Energy flowing per unit volume is:
a>
b>
c>
d>
21>The equation of SHM is given by y=A Sin Cx+B Cos Dt
the dimensions of the ratio of D:C are:
a>
b>
c>
22> The dimensions of Heat Energy are:
a>
b>
c>
d>
23> The dimensions formula for modulus of rigidity is:
a>
b>
c>
d>
24> The dimensional formula
represents:
a>The moment of force
b>Acceleration
c>Force
d>Angular momentum
25> Which os the following pairs of physics quantities have same dimensions:
a>Momentum and impulse
b>Linear velocity and angular velocotity
c>Linear momentum and angular momentum
d>Tension and Surface tension
26> The system os units developed in recent years recommended for wide us is:
a> C.G.S
b> F.P.S
c> M.K.S
d> S.I.
27> The statement that “The dimensional analysis can be used in deducing exact relationship
between any number of physical quantities” is:
a> True
b>False
C> Uncertain
D> None of above
28> In S.I. system the Pascal is the unit of:
a>Surface tension
b>Surface energy
c>Viscosity
d>Pressure
29> In S.I. system watt multiplied by second is called:
a> Newton
b> Joule
c> Pascal
d> Joule/sec^2
30> The unit of energy is:
a> Watt
b> Newton
c> Kilowatt hour
d>Poise
31> Torr is unit of:
a> Pressure
b> Force
c> Surface tension
d> Viscocity
32> 1 Torr is equal to:
a> 1 atmoshphere
b> 1 bar
c> 1 mm of Hg
d> 1 cm of Hg
33> One micrometer is equal to:
a> 10^-4 m
b> 10^-6 m
c> 10^-8 m
d> 10^-10 m
34> 1 Fermi is equal to:
a> 10^-12 Farad
b> 10^-12 m
c> 10^-15 m
d> 10^-15
35>The quantity which is not defined in terms of force per unit area is:
a> Pressure
b>Stress
c>Strain
d>Young’s modulus
36>The number of particles crossing a unit area perpendicular to x-axis in unit time is given by:
where, n1,n2 are the number of particles per unit volume at x=x1 and x=x2 respectively.
The dimensions of D called diffusion coefficient are:
a>
b>
c>
d>
37> If e is electronic charge , h is Plank’s constant and c is speed of light then the quantity:
the quantity has the dimension of:
a>Mass
b>length
c>Time
d>Dimensionless
38> In the relation:
where St represents the distance traveled in t seconds , u is initial velocity , a is acceleration.
The dimensions of St are:
a>
b>
c>
d>
39>The relation in Q.38 is:
a> Numerically correct only
b>Dimensionally correct only
c>Both numerically and dimensionally correct
d>Neither numerically nor dimensionally correct
40>The Bernoulli’s theorem may be expressed as:
Where , p=pressure , d=density, v=velocity, g=acceleration due to gravity and h=height of liquid
layer above horizontal ; The dimension of
constant C are:
a>
b>
c>
d>
41>The equation of state for real gas(Vander wall’s gas) is:
where p=pressure , V=volume
The dimensions of “a” are:
a>
b>
c>
d>
42>In the equation in Q.41 , the dimension of “b” are:
a>
b>
c>
d>
43> The force acting between two particles of masses m1 and m2 at separation r is given by:
46> 1 X-ray unit is:
a>10^-10 m
b>10^-12 m
c>10^-13 m
d>10^-15 m
47>If force F , acceleration A and time T are taken as fundamental physical quantities , The
dimensions of length L in this new system will be:
d>
48>Which of the following is not a unit of time:
a>Lunar month
b>Leap year
c>Solar day
d>Light year
49>Which of the following is unit of distance:
a>Second
b>Parallactic second
c>Watt
d>Pascal
50> Joule multiplied by second is the unit of:
a>Energy
b>Momentum
c>Angular momentum
d>Power