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Measurements Physics Chapter 1 Class 11
Physics Book FSC CH 1 CLASS 11 Class 12 HSSC Physics INTRODUCTION.
Identify the dimensions of area, velocity and acceleration respectively: (where L= Length, T=Time)
NTS 2015 SMBBMC
Physics
Measurements
Dimensions of Physical Quantities
Elimination Tool:
1/52
When the dimensions of both sides of an equation are equal, then the equation is said to be:
UHS 2011
Physics
Measurements
Dimensions of Physical Quantities
Elimination Tool:
2/52
The number L = 8.0 x 104cm can be expressed as ________.
NUMS 2019 Reconduct
Physics
Measurements
Physical Quantities
Elimination Tool:
3/52
The dimensional formula for change in momentum is same as that for:
ETEA 2018
Physics
Measurements
Dimensions of Physical Quantities
Elimination Tool:
4/52
The dimensions of volume and acceleration (respectively) are:
NTS 2010
Physics
Measurements
Dimensions of Physical Quantities
Elimination Tool:
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Force is a derived quantity, its derived unit can be expressed in terms of the base units as:
UHS 2018
Physics
Measurements
Physical Quantities
Elimination Tool:
6/52
Electric charge on an object is measured as 5 microcoulombs. How the value of this charge can be expressed in terms of base units:
UHS 2012
Physics
Measurements
Physical Quantities
Elimination Tool:
7/52
The velocity of a particle is related to time according to the equation
V= ct3. The dimensions of constant are _______.
NTS 2019
Physics
Measurements
Dimensions of Physical Quantities
Elimination Tool:
8/52
Vector is quantity which
PMC Practice 26
Physics
Measurements
Elimination Tool:
9/52
If ‘A’ is fundamental dimension of ampere then the dimension of magnetic field strength is:
UHS 2015
Physics
Magnetism and Electromagnetic Induction
Measurements
Magnetic Flux and Flux Density
Dimensions of Physical Quantities
Elimination Tool:
10/52
Which one of the following physical quantity does not the dimension of force per unit area
ETEA 2019
Physics
Measurements
Dimensions of Physical Quantities
Elimination Tool:
11/52
A quantity 𝑥 is to be determined from the equation, 𝑥 = 𝑃 – 𝑄. 𝑃 is measured as (1.27 ± 0.02) 𝑚 and 𝑄 is measured as (0.83 ± 0.01) 𝑚. What is the percentage uncertainty in 𝑥 to one significant figure?
ETEA 2018
Physics
Measurements
Assessment of Total Uncertainty
Elimination Tool:
12/52
How many significant figures are there in 0.4793?
NTS 2018
Measurements
Physics
Significant Figures
Elimination Tool:
13/52
How many cubic nanometers, nm3, are in a cubic micrometer, μm3?
ETEA 2018
Physics
Measurements
Physical Quantities
Elimination Tool:
14/52
The base units of Young’s Modulus are:
NUMS 2019 Reconduct
Physics
Measurements
International System of Units
Elimination Tool:
15/52
The final answer of the expression is:
NTS 2013
Physics
Measurements
Significant Figures
Elimination Tool:
16/52
What is 1 radian in degrees approximately
PMC Sample 3
Physics
Measurements
Physical Quantities
Elimination Tool:
17/52
In the SI system of units, the fundamental units of mass, time and length are ____, _____ and ______ respectively.
NUMS 2019 Reconduct
Physics
Measurements
International System of Units
Elimination Tool:
18/52
1 light year distance is
PMC Practice 27
Physics
Measurements
Physical Quantities
Elimination Tool:
19/52
Molar mass of water is:
PMC Sample 2
Physics
Measurements
Precision and Accuracy
Elimination Tool:
20/52
Which of the following is not a base unit in the SI system?
NTS 2016 SMBBMC
Physics
Measurements
International System of Units
Elimination Tool:
21/52
Name the quantity which can be measured by using the base unit kgm2s-3.
UHS 2013
Physics
Measurements
Physical Quantities
Elimination Tool:
22/52
The dimensions of pressure is:
UHS 2015
Physics
Measurements
Dimensions of Physical Quantities
Elimination Tool:
23/52
The diameter of a wire is measured by using a micrometer screw gauge with least count of 0.01 mm. Which of the following readings will be correct?
UHS 2019
Physics
Measurements
Significant Figures
Elimination Tool:
24/52
In the SI system of units, the fundamental units of length, mass, and time are ____, _____ and respectively:
NTS 2019
Physics
Measurements
International System of Units
Elimination Tool:
25/52
The different magnitudes of same physical quantities are measured by comparing them to:
NUMS Mock 3
Physics
Measurements
Elimination Tool:
26/52
The unit of temperature in base unit is:
UHS 2015
Physics
Measurements
International System of Units
Elimination Tool:
27/52
Which set of the prefixes gives values in increasing order?
UHS 2014
Physics
Measurements
Physical Quantities
Elimination Tool:
28/52
Which of the following is not a base unit in the SI system?
NTS 2016 SMBBMC
Physics
Measurements
International System of Units
Elimination Tool:
29/52
The length and width of a rectangular plate are measured to be 15.3 mm and 12.50 mm. Find the area of the plate up to an appropriate number of significant figures.
NUMS 2017
Physics
Measurements
Significant Figures
Elimination Tool:
30/52
Percentage uncertainty in length and width of a rectangle is 2% and 3%. The total uncertainty in the area of that rectangle is?
UHS 2019
Physics
Measurements
Assessment of Total Uncertainty
Elimination Tool:
31/52
The frequency of vibration of the string is given by the equation given below. (p is the number of segments in the string and l is the length of the string).
The dimensional formula for m will be:
PMC Practice 4
Physics
Measurements
Dimensions of Physical Quantities
Elimination Tool:
32/52
1 light year distance is the:
PMC Practice 5
Physics
Measurements
Physical Quantities
Elimination Tool:
33/52
The unit of velocity is:
PMC Sample 2
Physics
Measurements
Physical Quantities
International System of Units
Elimination Tool:
34/52
A metal sphere of radius r is dropped into a tank of water. As it sink at speed v, it experience a drag force F given by F= krv, where k is a constant: What are the SI base units of k?
ETEA 2017
Physics
Measurements
Physical Quantities
Elimination Tool:
35/52
Which experimental technique reduces the systematic error of the quantity being investigated?
ETEA 2017
Physics
Measurements
Errors and Uncertainties
Elimination Tool:
36/52
The unit of temperature in base unit is:
UHS 2015
Physics
Measurements
International System of Units
Elimination Tool:
37/52
The dimensions of acceleration are:
NTS 2011
Physics
Measurements
Dimensions of Physical Quantities
Elimination Tool:
38/52
A value for the acceleration of free fall on earth is given as (10+-2) m s-2. Which statement is correct?
ETEA 2017
Physics
Measurements
Precision and Accuracy
Elimination Tool:
39/52
In SI units, the unit of Candela is used for the measurement of:
NTS 2016 DUHS & JSMU
Physics
Measurements
International System of Units
Elimination Tool:
40/52
Force is a derived quantity, its derived unit can be expressed in terms of the base units as:
UHS 2018
Physics
Measurements
Physical Quantities
Elimination Tool:
41/52
The dimension of angular momentum is:
NUMS 2014
Physics
Measurements
Dimensions of Physical Quantities
Elimination Tool:
42/52
Which of the following is dimensionless quantity?
NUMS 2018
Physics
Measurements
Dimensions of Physical Quantities
Elimination Tool:
43/52
The dimensions of angular velocity (ω) is:
NUMS 2019 Cancelled
Physics
Measurements
Dimensions of Physical Quantities
Elimination Tool:
44/52
In an experiment the dimensions of a rectangular plate is measured with a meter rule (accurate to +- 0.1 cm). If the the length of the plate is measured 16.3 cm, the number of significant figures will be
Science & Reasoning Question Bank
Physics
Measurements
Elimination Tool:
45/52
Which of the following is not a S.I. base quantity.
NUMS 2018
Physics
Measurements
International System of Units
Elimination Tool:
46/52
Determine the significant figures in 0.0085:
NTS 2019
Physics
Measurements
Significant Figures
Elimination Tool:
47/52
Which of the following is a supplementary physical quantity?
UHS 2017 Reconduct
Physics
Measurements
International System of Units
Elimination Tool:
48/52
1 light year distance is the:
PMC Practice 5
Physics
Measurements
Physical Quantities
Elimination Tool:
49/52
Which of the following is a dimensionless quantity?
FMDC 2018
Physics
Measurements
Dimensions of Physical Quantities
Elimination Tool:
50/52
Which of the following is NOT a unit of energy?
PMC 2021 Tested
Physics
Work, Power & Energy
Measurements
Physical Quantities
Elimination Tool:
51/52
The dimensional formula for change in momentum is same as that for:
ETEA 2018
Physics
Measurements
Dimensions of Physical Quantities
Elimination Tool:
52/52