1.A student repeatedly measured the length of a simple pendulum and recorded the results in centimetre as: 36.9, 36.7, 36.8 and 36.6. What is the precision index of this measurement in cm?

Question

0.108
36.75
0.054
0.0269

2 How would the final result of the repeated measurement of the diameter of a test-tube given as 3.69, 3.67, 3.68, 3.66 in cm be expressed?

3 Two lengths

m and

are obtained by measurement.

= ---------------

4 The length of each side of a cube measured with verier calipers is 30mm.If the vernier calipers can be read with an uncertainty of

m, what does this give for approximate uncertainty in the value of its volume?
1%
0.01%
0.02%
0.01%

5 Determine the error in the measurement of cosine of

6 The slope of the graph of

plotted on the vertical axis against l on the horizontal axis is used to determine the value of -----------
frequency
period
phase
acceleration due to gravity

7 One of the precuations in experiments involving the determination of the period of oscillation of simple pendulum given below is NOT correct
prevent draught
read values with the eye placed vertically above scale marks
start the stop watch simulteneuosly with the the release of the system to start oscillating
use small displacements from equilibrium position

8 In a simple pendulum experiment to determine inaccessible height,

was plotted on the vertical axis and h/cm on the horizontal axis. T is the period and h is the height of the pendulum bob from the floor. Which of the following gives the inaccessible height H?
slope of the graph
intercept on the vertical axis
inverse of slope of the graph
intercept on horizontal axis

9 In an experiment, 30 complete oscillations were made in 14 seconds. Determine the value of the square of the period,

10 What is the frequency of oscillation of a simple pendulum which makes 50 oscillations in 24.4 seconds?
0.23Hz
0.014Hz
0.488Hz
2.049Hz

11 Which of these is NOT true about the graph of

against h in an experiment to determine an inaccessible height H using the simple pendulum?
the slope of the graph is negative
the intercept on the horizontal axis is positive
the value of g is obtainable from the slope of the graph
the intercept on the vertical axis is negative

12 In an experiment involving the spiral spring, F is the resoring focrce and x the extension of the spring. The equation F = - kx gives the relationship between F and x. What does k measure in the experiment?
amplitude of oscillation
period oscillation
stiffness of the spring
velocity of the oscillation

13 In an experiment involving the spiral spring, F is the resoring focrce and x the extension of the spring. The equation F = - kx gives the relationship between F and x. The graph of F/N against x/cm -----------------
passes through the origin
has an intercept on the vertical axis
has an intercept on the vertical axis
has an intercept on the horizontal axis

14 In an experiment to determine the effective mass of a spiral spring, which of the following is not required in the set of apparatus?
spiral spring
stop watch
slot weights
pendulum bob

15 The equation of a simple harmonic oscillator may be written as

(the symbols have their usual meaning). In an experiment to determine the period of oscillation of a loaded spiral spring T, which of the following is the correct relationship between T and

?

16 In an experiment to determine the period of oscillation of a loaded spiral spring, the equation of a simple harmonic oscillator

, where the symbols have their usual meaning, was used. Write down the equation for the angular frequency

in terms of k and m.

17 In an experiment to determine the period of oscillation of a loaded spiral spring,

was plotted on the vertical axis and M on the horizontal axis. T is the period while M is the effective mass. Which of the following is CORRECT?
the slope of the graph gives the acceleration due to gravity, g
the inverse of the slope of the graph gives M
the intercept on the vertical axis of the graph gives M
the intercept on the horizontal axis of the graph gives M

18 In an experiment to determine the period of oscillation of a loaded spiral spring, which of the following is NOT a necessary precaution?
using small vertical displacements from equilibrium position to set the system in oscillation
repeating the timing of oscillations and finding the average
using small angular displacements from equilibrium position to set the system in oscillation
counting down to zero to start the stop watch in the timing of the oscillations

19 In an experiment to determine the surface tension of a liquid by the capillary rise method, the surface tension depends on all of the following EXCEPT------------
radius of the capillary tube
the height of the liquid column
density of liquid
compressibilty of liquid

20 In an experiment to determine the surface tension of water, the travelling microscope is used to determine -------------
external diameter of the capillary tube
height of the capillary rise of water in the tube
surface tension of water
density of water

Given

, then log P is plotted against log Q, the intercept is
log P
log Q
log k
n

2 The product of two measurements 1.23cm and 2.3cm should be rounded off as
2.8cm
2.80cm
2.800cm
2.8000cm

3 Errors that might result in measured values which are consistently too high or too low are called ----------- errors
random
zero
systematic
inherent

4 The simple pendulum experiment is used to determine an inaccessible height H using the relation

,where h is the height of the bob from the floor.The inaccessible height is obtainable from the -------------- of the graph of

plotted against h
slope
intercept
inverse of slope
inverse of intercept

5 In an experiment,measurements of variables were repeated in order to minimise -------------- error
systemtic
random
inherent
zero

6 A mass of 150g when hung on a spiral spring stretches it 40cm. Assuming the spring is Hookean, the period of oscillation of the mass when slightly displaced and released is ------------------ to 2 decimal places
1.27s
2.14s
1.37s
2.56s

7 A wooden block is at the verge of sliding freely down a wooden inclined plane when the inclination is 20degrees. The coeficient of limiting friction is --------------------- to 2 decimal places
0.56
0.36
0.24
0.11

8 The resulting temperature when 1kg of ice at 0 degrees Celcius is mixed with 9kg of water at 50 degress Celcius is ----------------------- to the nearest whole number.The specific capacity of water is 4200J/kg/K,the specific latent heat of fusion of ice is 330 000J/kg
24 degreees celcius
37 degreees celcius
46 degreees celcius
56 degreees celcius

9 When writing the results of an experimental observation in terms of significant digits, all non-zero digits are -----------------
significant
to be discarded
to be rounded off
to be truncated

10 An experiment which gives a straight line graph with positive intercepts on both axes of the graph has a ------------------- slope
positive slope
negative slope
zero slope
inverse slope

11 The slope of a graph is obtained from a suitable ---------------- drawn on the graph
triangle
axes
intercept
scale

12 The slope of the tangent to a curve which is parallel to the horizontal axis of the graph is ----------
zero
one
infinite
insignificant

13 In a simple pendulum experiment,

is plotted on the vertical axis while ------------- is plotted on the horizontal axis

l/cm
logl

14 To obtain a suitable spread of the plotted points on the graph paper, a suitable --------------- must be chosen for each axis of the graph
axis
scale
intercept
slope

15 If an oscillatory motion must be simple harmonic, the restoring force F must obey ------------------ law for small displacements from equilibrium position
Achimedes'
Kepler's
Hooke's
Newton's

16 The equation of a simple harmonic oscillator takes the form

. The symbols have their usual meaning . The equivalent of

in the case of a simple pendulum is -----------
1/l
g/l
l/g
g

17 In an experiment to verify Boyle's law, a student plotted P against 1/V. His graph is a ----------
straight line
hyperbola
parabola
circle

18 A simple pendulum made 50 oscillations in 22.3s. Find its period
0.45s
0.22s
1.22s
1.45s

19 The effect of reducing the length of a simple pendulum is to ----------
increase its period
decrease its frequency
increase its amplitude
increase its frequency

20 The equation of a simple harmonic oscillator takes the form

. The symbols have their usual meaning .If the experimentally obtained values of a are plotted on the vertical axis and x on the horizontal axis, the graph obtained --------
is a parabola
is a straight line that passes through the origin and has negative slope
is a straight line that passes through the origin and has positive slope
is a hyperbola

Answer 1

you gotta be kidding. Too many problems, and no indication of any work on your part.

The idea of this site is for students to post a typical problem that is troubling them. Then they get help, and can solve similar problems in the future.

If all these problems are impossible for you to even start on, you are clearly unprepared to take the class, either in attitude, competence, or preparation. Drop it now! Study Art History or something.