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physics ICSE 10 2010
Posted Date: 01 Jul 2008 Resource Type: Articles/Knowledge Sharing Category: Syllabus
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Posted By: hima Member Level: Gold
Rating:  Points: 3
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SCIENCE (52)
PAPER I: PHYSICS
Aims:
1. To acquire knowledge and understanding of the
terms, facts, concepts, definitions, laws,
principles and processes of Physics.
2. To develop skills in practical aspects of handling
apparatus, recording observations and in
drawing diagrams, graphs, etc.
3. To develop instrumental, communication,
deductive and problem-solving skills.
4. To discover that there is a living and growing
physics relevant to the modern age in which we
live.
CLASS IX
There will be one paper of one and half-hours
duration carrying 80 marks and Internal Assessment
of practical work carrying 20 marks.
The paper will be divided into two sections, Section I
(40 marks) and Section II (40 marks).
Section I (compulsory) will contain short answer
questions on the entire syllabus.
Section II will contain six questions. Candidates will
be required to answer any four of these six questions.
Note: Unless otherwise specified, only S. I. Units are
to be used while teaching and learning, as well as for
answering questions.
1. Measurements and Experimentation
(i) Estimation by orders of magnitude of size
(length, area and volume), mass and time.
(ii) International System of Units (the required SI
units are given at the end of this syllabus) and
other commonly used units of the relevant
physical quantities.
(iii) Measurements using common instruments
(metre rule, Vernier calipers and micrometer
screw gauge for length, volume by
displacement using a measuring cylinder, stop
watch and simple pendulum for time, equal
arm beam balance for comparison of masses);
least count of measuring instruments.
Significant figures; percentage error
associated with a measurement.
(iv) Presentation of data in tabular and graphical
form (straight line graphs only); labelling of
axes; scale and accuracy of plots; best-fit
straight line; errors; identifying proportional
relationships using straight line graphs.
2. Fluids
(i) Change of pressure with depth (including the
formula p=hrg); transmission of pressure in
liquids; atmospheric pressure.
(ii) Archimedes’ Principle; upthrust (buoyancy);
floatation; relationship with density; relative
density; determination of relative density of a
solid; qualitative description of a hydrometer.
3. Motion in one dimension
Distance, speed, velocity, acceleration; graphs of
distance-time and speed-time; equations of motion
v = u + at; S = ut + ½at2; S = ½(u+v)t; v2 = u2 +
2as.
4. Newton’s Laws of Motion
(i) Newton’s First Law of Motion (qualitative
discussion) to introduce the idea of inertia:
mass and force.
(ii) Newton’s Second Law of Motion (elementary
qualitative discussion) in terms of rate of
change of momentum with time, definition of
force.
(iii) Newton’s Third Law of Motion (qualitative
discussion only); simple examples.
5. Forces
(i) Contact and non-contact forces; Names of cgs
& SI units.
(ii) Turning forces concept; moment of a force;
forces in equilibrium; centre of gravity;
62
(discussions using simple examples and
simple direct problems).
(iii) Uniform circular motion as example of
constant speed, though force is present. Basic
idea of centrifugal and centripetal force
(qualitatively only).
6. Heat
(i) Concepts of heat and temperature.
(ii) Expansion of solids, liquids and gases
(qualitative discussion only); uses and
consequences of expansion (simple
examples); anomalous expansion of water.
(iii) Mercury thermometers, brief introduction;
higher and lower fixed points of a
thermometer; special case of the clinical
thermometer; temperature scales - Celsius and
Fahrenheit only. Problems on inter-conversion
between the Celsius and Fahrenheit scales.
(iv) Transfer of heat (simple treatment) by
conduction, convection and radiation; thermal
insulation; keeping warm and keeping cool;
vacuum flask; ventilation.
7. Light
(i) Rectilinear propagation of light; shadows.
(ii) Reflection of light; image formed by a plane
mirror (characteristics of the image by simple
ray diagrams); regular and irregular reflection;
images formed by a pair of parallel and
perpendicular plane mirrors; simple periscope.
(iii) Spherical mirrors; characteristics of image
formed by these mirrors and their uses
(only simple direct ray diagrams are required;
sign convention, magnification, focal length
and associated problems are not required).
8. Wave Motion
(i) Demonstrating that a medium is required for
sound waves to travel; nature of sound, its
propagation and speed in different media;
comparison with speed of light.
(ii) Range of hearing; ultrasound, a few
applications.
9. Electricity and Magnetism
(i) Static electricity – electric charge; charging
by friction; simple orbital model of the atom;
detection of charge (pith ball and
electroscope); sparking; lightning conductors.
(ii) Simple electric circuit using an electric cell
and a bulb to introduce the idea of current
(including its relationship to charge); potential
difference; insulators and conductors; closed
and open circuits; direction of current
(electron flow and conventional); resistance
introduced through bulbs in series and
parallel.
(iii) Properties of a bar magnet; induced
magnetism; lines of magnetic force; neutral
points.
INTERNAL ASSESSMENT OF
PRACTICAL WORK
Candidates will be asked to carry out experiments for
which instructions are given. The experiments may be
based on topics that are not included in the syllabus
but theoretical knowledge will not be required. A
candidate will be expected to be able to follow simple
instructions, to take suitable readings and to present
these readings in a systematic form. He/she may be
required to exhibit his/her data graphically.
Candidates will be expected to appreciate and use the
concepts of least count, significant figures and
elementary error handling.
A set of 6 to 10 experiments may be designed as given
below or as found most suitable by the teacher.
Students should be encouraged to record their
observations systematically in a neat tabular form - in
columns with column heads including units or in
numbered rows as necessary. The final result or
conclusion may be recorded for each experiment.
Some of the experiments may be demonstrated (with
the help of students) if these cannot be given to each
student as lab experiments.
1. Determine the least count of the Vernier callipers
and measure the length and diameter of a small
cylinder (average of three sets) - may be a metal
rod of length 2 to 3 cm and diameter 1 to 2 cm.
2. Determine the zero error, zero correction, pitch
and least count of the given screw gauge and
measure the mean radius of the given wire, taking
three sets of readings in perpendicular directions.
63
3. Measure the length, breadth and thickness of a
glass block using a metre rule (each reading
correct to a mm), taking the mean of three
readings in each case. Calculate the volume of the
block in cm3 and m3. Determine the mass
(not weight) of the block using any convenient
balance in g and kg. Calculate the density of glass
in cgs and SI units using mass and volume in the
respective units. Obtain the relation between the
two density units.
4. Measure the volume of a metal bob (the one used
in simple pendulum experiments) from the
readings of water level in a measuring cylinder
using displacement method. Also calculate the
same volume from the radius measured using
Vernier callipers. Comment on the accuracies.
5. Obtain five sets of readings of the time taken for
20 oscillations of a simple pendulum of lengths
about 70, 80, 90, 100 and 110 cm; calculate the
time periods (T) and their squares (T2) for each
length (l). Plot a graph of l vs. T2. Draw the best
- fit straight - line graph. Also, obtain its slope.
Calculate the value of g in the laboratory.
It is 4p2 x slope.
6. Make a test tube hydrometer using a test tube,
lead shots, and a strip of graph paper. Determine
the RD of any two liquids.
7. Take a beaker of water. Place it on the wire gauze
on a tripod stand. Suspend two thermometers -
one with Celsius and the other with Fahrenheit
scale. Record the thermometer readings at 5 to 7
different temperatures. You may start with icecold
water, then allow it to warm up and then heat
it slowly taking temperature (at regular intervals)
as high as possible. Plot a graph of TF vs. TC.
Obtain the slope. Compare with the theoretical
value. Read the intercept on TF axis for TC = 0.
8. Using a plane mirror strip mounted vertically on a
board, obtain the reflected rays for three rays
incident at different angles. Measure the angles of
incidence and angles of reflection. See if these
angles are equal.
9. Place three object pins at different distances on a
line perpendicular to a plane mirror fixed
vertically on a board. Obtain two reflected
rays(for each pin) fixing two pins in line with the
image. Obtain the positions of the images in each
case by extending backwards (using dashed lines),
the lines representing reflected rays. Measure the
object distances and image distances in the three
cases. Tabulate. Are they equal? Generalize the
result.
10. Obtain the focal length of a concave mirror
(a) by distant object method, focusing its real
image on a screen or wall and (b) by one needle
method removing parallax or focusing the image
of the illuminated wire gauze attached to a ray
box. One could also improvise with a candle and
a screen. Enter your observations in numbered
rows.
11. Connect a suitable dc source (two dry cells or an
acid cell), a key and a bulb (may be a small one
used in torches) in series. Close the circuit by
inserting the plug in the key. Observe the bulb as
it lights up. Now open the circuit, connect
another identical bulb in between the first bulb
and the cell so that the two bulbs are in series.
Close the key. Observe the lighted bulbs. How
does the light from any one bulb compare with
that in the first case when you had only one bulb?
Disconnect the second bulb. Reconnect the circuit
as in the first experiment. Now connect the
second bulb across the first bulb. The two bulbs
are connected in parallel. Observe the brightness
of any one bulb. Compare with previous results.
Draw your own conclusions regarding the current
and resistance in the three cases.
12. Plot the magnetic field lines of earth (without any
magnet nearby) using a small compass needle. On
another sheet of paper place a bar magnet with its
axis parallel to the magnetic lines of the earth, i.e.
along the magnetic meridian or magnetic north
south. Plot the magnetic field in the region around
the magnet. Identify the regions where the
combined magnetic field of the magnet and the
earth is (a) strongest, (b) very weak but not zero,
and (c) zero. Why is null point, so called?
13. Using a spring balance obtain the weight
(in N) of a metal ball in air and then completely
immersed in water in a measuring cylinder. Note
the volume of the ball from the volume of the
water displaced. Calculate the upthrust from the
first two weights. Also calculate the mass and
then weight of the water displaced by the bob
M=V.r, W=mg). Use the above result to verify
Archimedes principle.
64
CLASS X
There will be one paper of one and half-hours
duration carrying 80 marks and Internal Assessment
of practical work carrying 20 marks.
The paper will be divided into two sections, Section I
(40 marks) and Section II (40 marks).
Section I (compulsory) will contain short answer
questions on the entire syllabus.
Section II will contain six questions. Candidates will
be required to answer any four of these six questions.
Note: Unless otherwise specified, only S. I. Units are
to be used while teaching and learning, as well as for
answering questions.
1. Force, Work, Energy and Power
(i) Newton’s Second Law of Motion (including
F=ma); weight and mass.
(ii) Machines as force multipliers; load, effort,
mechanical advantage, velocity ratio and
efficiency; simple treatment of levers,
inclined plane and pulley systems showing the
utility of each type of machine.
(iii) Work, energy, power, and their relation with
force (simple numerical problems included).
(iv) Different types of energy (e.g., chemical
energy, gravitational potential energy, kinetic
energy, heat energy, elastic energy, electrical
energy, nuclear energy, sound energy, light
energy).
(v) Principle of Conservation of energy.
2. Light
(i) Refraction of light through a glass block and a
triangular prism (no calculations but
approximate ray diagrams required);
qualitative treatment of simple applications
such as real and apparent depth of objects in
water and apparent bending of sticks in water.
(ii) Total internal reflection: Critical angle;
examples in triangular glass prisms;
comparison with reflection from a plane
mirror (qualitative only).
(iii) Lenses (converging and diverging) including
characteristics of the images formed
(using ray diagrams only); magnifying glass;
location of images using ray diagrams and
thereby determining magnification
(sign convention and problems using the lens
formulae are excluded).
(iv) Using a triangular prism to produce a
spectrum from white light; simple treatment
of the electromagnetic spectrum.
3. Sound
(i) Reflection of Sound Waves; echoes: their use;
simple numerical problems on echoes.
(ii) Forced and natural vibrations and resonance
(through examples).
(iii) Loudness, pitch and quality of sound;
difference between music and noise
(overtones, harmonics, nodes and anti-nodes
are excluded).
4. Electricity and Magnetism
(i) Ohm’s Law; concepts of emf, potential
difference, resistance; resistances in series and
parallel; simple direct problems using
combinations of resistors in circuits.
(ii) Electrical power and energy; household
consumption of electrical energy (simple
problems based on electricity bill
calculations).
(iii) Household circuits – main circuit; switches;
fuses; earthing; safety precautions; three-pin
plugs; colour coding of wires.
(iv) Magnetic effect of a current (principles only,
laws not required); electromagnet; dc electric
bell; dc motor; electromagnetic induction
(elementary); ac generator; transformer
(only qualitative description of the devices is
required).
5. Heat
(i) Specific heat capacities; Principle of method
of mixtures; problems on specific heat
capacity using heat loss and gain and the
method of mixtures.
(ii) Latent heat; loss & gain of heat involving
change of state for fusion only (including
65
simple problems); common phenomenon
involving specific heat capacity and latent
heat of fusion.
6. Modern Physics
(i) Thermionic emission; simple qualitative
treatment of a hot cathode ray tube.
(ii) Radioactivity and changes in the nucleus; the
nature of alpha and beta particles and gamma
rays (problems on half life excluded);
background radiation and safety precautions.
Special Note: As mentioned above, numerical
problems will be only from sub-units 1(i), 1(ii),
1(iii), 1(iv), 1(v), 3(i), 4(i), 4(ii), 5(i) & 5(ii) for
Class X examination of 2009.
INTERNAL ASSESSMENT OF
PRACTICAL WORK
Candidates will be asked to carry out experiments for
which instructions will be given. The experiments
may be based on topics that are not included in the
syllabus but theoretical knowledge will not be
required. A candidate will be expected to be able to
follow simple instructions, to take suitable readings
and to present these readings in a systematic form.
He/she may be required to exhibit his/her data
graphically. Candidates will be expected to appreciate
and use the concepts of least count, significant figures
and elementary error handling.
Note: Teachers may design their own set of
experiments, preferably related to the theory
syllabus. A comprehensive list is suggested
below.
1. Lever - There are many possibilities with a meter
rule as a lever with a load (known or unknown)
suspended from a point near one end (say left), the
lever itself pivoted on a knife edge, use slotted
weights suspended from the other (right) side for
effort.
Determine the mass of a metre rule using a spring
balance or by balancing it on a knife edge at some
point away from the middle and a 50g weight on
the other side. Next pivot (F) the metre rule at the
40cm, 50cm and 60cm mark, each time
suspending a load L or the left end and effort
E near the right end. Adjust E and or its position
so that the rule is balanced. Tabulate the position
of L, F and E and the magnitudes of L and E and
the distances of load arm and effort arm. Calculate
MA=L/E and VR = effort arm/load arm. It
will be found that MA in another and MA>VR in the third case. Try to
explain why this is so. Also try to calculate the
real load and real effort in these cases.
2. Inclined Plane - Use a roller (to minimize friction)
as the load. Determine the effort required to roll it
up an inclined plane with uniform speed. Apply
effort at the end of a string tied to the roller,
passing over a pulley and a scale pan attached.
Calculate the MA=L/E and VR=1/sinq = l/h
obtained from measurements of the inclined
plane. Repeat for two other angles of inclination.
Why is MA3. Determine the VR and MA of a given pulley
system.
4. Trace the course of different rays of light
refracting through a rectangular glass prism at
different angles of incidence, measure the angles
of incidence, refraction and emergence. Also
measure the lateral displacement.
5. Determine the focal length of a concave mirror by
(a) the distant object method and (b) one needle
method removing parallax or using a ray box or
candle and screen.
6. Do the same as above for a convex lens.
7. For a triangular prism, trace the course of rays
passing through it, measure angles i1, i2, A and
d.Repeat for four different angles of incidence
(say i1=400 , 500, 600 and 700). Verify i1+ i2=A+d.
8. For a ray of light incident normally (i1=0) on one
face of a prism, trace course of the ray. Measure
the angle d. Explain briefly. Do this for prisms
with A=600, 450 and 900.
9. Calculate the sp. heat of the material of the given
calorimeter, from the temperature readings and
masses of cold water, warm water and its mixture
taken in the calorimeter.
10. Determination of sp.heat of a metal by method of
mixtures.
11. Determination of specific latent heat of ice.
12. Using as simple electric circuit, verify Ohm’s law.
Draw a graph, and obtain the slope.
13. Set up model of household wiring including ring
main circuit. Study the function of switches and
fuses.
Teachers may feel free to alter or add to the above list.
The students may perform about 10 experiments.
Some experiments may be demonstrated.
66
A NOTE ON SI UNITS
SI units (Systeme International d’Unites) were
adopted internationally in 1968.
Fundamental units
The system has seven fundamental (or basic) units,
one for each of the fundamental quantities.
Unit Fundamental quantity
Name Symbol
Mass kilogram kg
Length metre m
Time second s
Electric current ampere A
Temperature kelvin K
Luminous intensity candela cd
Amount of substance mole mol
Derived units
These are obtained from the fundamental units by
multiplication or division; no numerical factors are
involved. Some derived units with complex names
are:
Unit Derived
quantity Name Symbol
Volume cubic metre m3
Density kilogram per cubic metre kg.m-3
Velocity metre per second m.s-1
Acceleration metre per second squared m. s-2
Momentum kilogram metre per
second
kg.m.s-1
Some derived units are given special names due to
their complexity when expressed in terms of the
fundamental units, as below:
Unit Derived quantity
Name Symbol
Force newton N
Pressure pascal Pa
Energy, Work joule J
Power watt W
Frequency hertz Hz
Unit Derived quantity
Name Symbol
Electric charge coulomb C
Electric resistance ohm W
Electromotive force volt V
When the unit is named after a person, the symbol has
a capital letter.
Standard prefixes
Decimal multiples and submultiples are attached to
units when appropriate, as below:
Multiple Prefix Symbol
109 giga G
106 mega M
103 kilo k
10-1 deci d
10-2 centi c
10-3 milli m
10-6 micro µ
10-9 nano n
10-12 pico p
10-15 femto f
EVALUATION
The practical work/project work are to be evaluated
by the subject teacher and by an External Examiner.
(The External Examiner may be a teacher nominated
by the Principal, who could be from the faculty, but
not teaching the subject in the relevant
section/class. For example, a teacher of Physics of
Class VIII may be deputed to be an External Examiner
for Class X, Physics projects.)
The Internal Examiner and the External Examiner will
assess the practical work/project work independently.
Award of marks (20 Marks)
Subject Teacher (Internal Examiner) 10 marks
External Examiner 10 marks
The total marks obtained out of 20 are to be sent to the
Council by the Principal of the school.
The Head of the school will be responsible for the
entry of marks on the mark sheets provided by the
Council.
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