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| 1st year physics mcqs |
Measurements
1.06 Accuracy and accuracy
Which of the
following is the correct record of the diameter of the wire when measured with
a screw gauge of at least 0.001 cm counting?
(A) 2.3 cm
(B) 2.31 cm
(C) 2.312 cm
(D) 2.3124
cm
An accurate
measurement is:
(A) Better
health
(B) Low
health
(C) Medium
health related
(D) More ٪ Error
Final
Results Estimate 1.07 Uncertainty
For a total
assessment of the uncertainty of the final result obtained by multiplication
and division:
(A) Absolute
uncertainty is included
(B) Partial
uncertainty is added
(C) Age
uncertainty added
(D) Error
added
L.C = 0.01
cm is the absolute uncertainty for different callers:
(A) 0.1 mm
(B) 0.01 m
(C) 0.001 cm
(D) 0.001 mm
The
percentage uncertainty in mass and velocity measurements is 2% and 3%, the
maximum uncertainty in kinetic energy is:
(A) 11
(B) 8
(C) 6
(D) 1
The
percentage error in mass and velocity measurements is 2% and 3% respectively,
the maximum uncertainty (error) in kinetic energy is:
(A) 11
(B) 8
(C) 6
(D) 1
5.47 × 19.89
= 108.7983 in The answer should be written as follows:
(A) 108.8
(B) 108.9
(C) 109
(D) 108.79
We include
the final result obtained by multiplication for a total assessment of
uncertainty
(A) Absolute
uncertainty
(B) Partial
uncertainty
(C)
Uncertainty
(D) Error
The absolute
uncertainty in the measuring instrument is equal to:
(A) Minimum
count
(B) Partial
uncertainty
(C) Accuracy
(D) Percent
uncertainty
Uncertainty
can be caused by this.
(A) The
range of a tool
(B) Personal
negligence
(C) The
natural transformation of the object
(D) All of
the above
The four
readings of a micrometer for measuring the diameter of a wire in millimeters
are 1.21, 1.23, 1.25, 1.23. Deviation means:
(A) 0.02 mm
(B) 0.01 mm
(C) 0.10 mm
(D) 0.20 mm
The time
taken by the light from the moon to the earth:
(A) 1 minute
10 seconds
(B) 1 minute
20 seconds
(C) 1 minute
30 seconds
(D) 1 minute
40 seconds
Vernier
Caliper recorded a measurement of 0.01 cm with a minimum count of 0.45 cm, with
partial uncertainty:
(A) 0.01
(B) 0.02
(C) 0.03
(D) 0.45
1.08
Dimensions of the volume of physics
Which pair
has the same dimension?
(A) Work and
power
(B) Speed
and continuity
(C) Force
and torque
(D) Torque
and power
The power dimensions
are:
(A) [ML-2T-2]
(B) [MLT-1]
(C) [MLT-2]
(D) [ML2T-2]
The
dimensions of the light year are:
(A) Speed
(B) Force
(C) Time
(D) Length
The
qualifying aspects of viscosity are:
(A) [MLT-1]
(B) [ML-1T-1]
(C) [ML-1T-2]
(D) [M-1L-1T-1]
The ratio of
the amplitude of power to work is:
(A) 1: T
(B) T: 1
(C) 1: T-2
(D) T.2: 1
The angular
velocity dimensions are:
(A) [MLT-2]
(B) [MLT-1]
(C) [ML2T-1]
(D) [ML-2T-1]
The
dimensions of lg √ glg are as follows:
(A time
(B) Energy
(C) Speed
(D) Force
The
dimensions of the horizon are equal to the dimensions of F × lm −−− × F × lm:
(A) Force
(B) Moment
(C) Speed
(D) Speed
Fluid volume
flow rate amplitude are:
(A) [LT-1]
(B) [L2T-2]
(C) [L3T-1]
(D) [L3T-2]
Density
dimensions are:
(A) [ML-2]
(B) [M2L-2]
(C) [ML-3]
(D) None of
them
The
dimensions of the centrifugal force are:
(A) ML -
2T - 2ML - 2T - 2
(B) MLT -
1MLT- 1
(C) MLT -
2MLT - 2
(D) ML2T
- 2ML2T - 2
The weight
dimensions are:
(A) [LT-1]
(B) [LT-2]
(C) [MLT-2]
(D) [ML2T]
The
dimensions of speed are:
(A) [ML2T-1]
(B) [MLT-1]
(C) [ML2T-2]
(D) [ML2T]
Power
dimensions are:
(A) [ML2T-2]
(B) [ML2T2]
(C) [ML2T-3]
(D) [ML-1T-1]
Torque
dimensions are:
(A) [ML-1T]
(B) [ML2T-1]
(C) [ML2T-2]
(D) [ML2T2]
The
dimensions of the pressure are:
(A) [MLT-2]
(B) [ML-1T-2]
(C) [ML-1T-1]
(D) [ML2T-2]
The
frequency dimensions are:
(A) [LT]
(B) [T-1]
(C) [MLT]
(D) [LT-1]
The
dimensions of angular displacement are:
(A) [L2]
(B) [LT-1]
(C) [Lu]
(D) [L-1T-1]
The
dimensions of the viscosity are:
(A) [ML-1T]
(B) [ML2T-1]
(C) [ML-1T-1]
(D) [ML-1T-2]
The
dimensions of the gravitational constant G are:
(A) [M-1L3T-2]
(B) [ML2T-2]
(C) [M2L-1T-2]
(D) [ML-2T-1]
mc2
mc2 is equal to the dimensions of the relationship dimension:
(A) Power
(B) Speed
(C) Energy
(D) Tark
[MoLoT -
1] [MoLoT - 1] Quotes refer to:
(A) Speed
(B) Time
period
(C)
Frequency
(D) Force
Dimensions
[Mo LTo] represents quantity:
(A) Length
(B) Mass
(C) Time
(D) Speed
The
numerical value of constant in any formula cannot be determined by dimensional
analysis, however it can be found by:
(A) Increase
(B) Physical
quantity
(C)
Experiments
(D)
Uncertainty