Ramadan Holiday Home Work-2021
SL Name of the
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SECTION A-READING
Part : One
SECTION B-WRITING
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People around the world are living longer but many are also living
sackers
lives for longer, according to a study of all major disease and
injuries is
188 countries. General health has improved worldwide because
of
significant progress against infectious diseases such as HIV/AIDs
and
malaria in the past decade. But healthy life expectancy has not
increased
as much. So, people are living more years with illness and
disability.
The world has made great progress in health, but now the challenge
is to
invest in finding more effective ways of preventing or treating the
major
causes of illness and disability.
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Amongst the countries in South Asia, Bangladesh is one of the
few
countries where female employment has increased in the last decade.
The
female employment rate has increased by 10% between 2003 and
2016.
While acknowledging Bangladesh’s achievements, women are still in
the
minority in the workplace as they represent only 36% of the
workforce.
There is a need for a change in employment laws and policies to
ensure
that women have equality of opportunity to access jobs in all
sectors.
Reducing the wage gap between man and women would also help
create
better equality.
2. English
Language
Solve all the question papers from Jan 2016 to Jan 2020 (Section A,
B & C)
using the test papers and read all the pages of 9—1 Edexcel
English
Language Student Book 5 times.
Supporting documents are provided here.
3. Maths B Chapter: 2 ( Algebra I)
Exercise: Revision Exercise 2A and 2B
Page No.: 87 – 91
Exam Exercise 3B Pg-120 Number 1-9
Number: Ex: (22, 23, 25, 26) Pg: (25-29)
Book: Extended Maths.
4. F.Pure Math Pure Mathematics Leepeng Book Pg 29 & Pg 187
Summary writing 10
times each
Book: Lee Peng. Pure Maths.
5. Physics 1. What is resistance?
2. On which factors does the resistance of a substance depend
on?
3. What is parallel and series resistance? Write down their
advantages and
disadvantages
4. Draw and explain the Voltage-Current graph for a conducting
wire, a
diode, a filament bulb, a LDR and a LED
5. What is heat and temperature? How does the average kinetic
energy of a
substance change with temperature?
7. How does convection current occur?
8. How can an energy efficient house be made?
9. What are the properties of solids, liquids and gases?
10. What is specific heat? What is its equation?
11. What is latent heat? Draw a heating curve of ice from -40
C
temperature to a water stream at 150C temperature.
12. State Boyle’s and Pressure law? Write down its equation Chapter
Question
1. Draw a ray diagram to show how a ray of light can be turned
through 100 using two plane mirrors. Mark on your diagram a value
for the angle of
incidence at each of the mirrors.
2. a. Draw a diagram to show the path of a ray of light travelling
from air into a
rectangular glass black at an angle of about 45. b. Show the path
of the ray as it emerges from the block.
c. Explain why the ray changes direction each time it crosses the
air/glass
boundary.
d. Draw a second diagram showing a ray that travels through the
block
without its direction changing.
3. In an experiment to measure the refractive index of a type of
glass, the angle
of refraction was found to be 31 when the angle of incidence was
55. a. Calculate the refractive index of the glass.
b. What would the angle of refraction be for a ray with an angle of
incidence
of 45. c. Calculate the critical angle for the glass.
4. a. Draw a diagram to show how a prism can create a rainbow of
colors.
b. Explain how these colors are produced by the prism.
5. Draw three ray diagrams to show what happens to a ray of light
travelling in a
glass block in the following situations. It hits a face of the
block at an angle:
a. less than critical angle
b. equal to the critical angle
c. greater than the critical angle.
6. a. What is meant by ‘total internal reflection of light’ and
under what
conditions does it occur?
b. Draw a diagram to show how total internal reflection takes place
in a
prismatic periscope.
c. Give one advantage of using prisms in a periscope rather than
plane
mirrors.
d. Draw a second diagram to show how a prism could be used to turn
a ray of
light through 180. Give one application of a prism used in this
way.
7. a. Explain why a ray of light entering an optical fiber is
unable to escape
through the sides of the fiber. Include a ray diagram in your
explanation.
b. Explain how doctors use optical fibers to see inside the
body.
c. Name one other use of optical fibers.
8. The diagram shows refraction of a ray of light as it passes from
medium 1 to
medium 2.
a. Is the light slowing down or speeding up?
b. Measure the angle of incidence and refraction on the diagram,
and
c. Use them to calculate the refractive index, 1n2.
9. Refraction of waves in shown. The wavelength in the faster
medium
before refraction, is 1.6 × bigger than the wavelength in the
slower
medium, after refraction.
a. As the frequency is the same, how many times faster is the
wave
travelling before refraction compared with after refraction.
b. What is the refractive index for this refraction?
10. The speed of light in vacuum and in two different glasses is
given in
this table.
vacuum 3.00 × 108
Flint glass 1.86 × 108
Crown glass 1.97 × 108
a. Calculate the absolute refractive indexes of flint glass and
crown
glass.
b. Calculate the relative refractive index for light going from
crown
glass of flint glass.
c. Calculate the critical angles for light going from flint glass
to crown
glass.
11. A spear-fisherman is about to catch a fish:
a. On a copy of the diagram, draw a ray of light going form the
fish to
the fisherman’s eye.
b. Use the diagram to explain to explain why the fisherman knows
that
he must not aim directly at where he sees the fish if he is to
catch it.
Should he aim high of low?
6. Chemistry
7. Biology Chapter: 3 & 10.
Solve the specification related solution:
2.51 understand why simple, unicellular organisms can rely on
diffusion for
movement of substances in and out of the cell
2.52 understand the need for a transport system in multicellular
organisms.
2.59 describe the composition of the blood: red blood cells, white
blood
cells, platelets and plasma
2.60 understand the role of plasma in the transport of carbon
dioxide,
digested food, urea, hormones and heat energy
2.61 understand how adaptations of red blood cells make them
suitable for
the transport of oxygen, including shape, the absence of a nucleus
and the
presence of haemoglobin
2.62 understand how the immune system responds to disease using
white
blood cells, illustrated by phagocytes ingesting pathogens and
lymphocytes
releasing antibodies specific to the pathogen
2.63B understand how vaccination results in the manufacture of
memory
cells, which enable future antibody production to the pathogen to
occur
sooner, faster and in greater quantity
2.64B understand how platelets are involved in blood clotting,
which
prevents blood loss and the entry of micro-organisms 2.65 describe
the
structure of the heart and how it functions
2.66 explain how the heart rate changes during exercise and under
the
influence of adrenaline
2.67 understand how factors may increase the risk of developing
coronary
heart disease
2.68 understand how the structure of arteries, veins and
capillaries relate to
their function
2.69 understand the general structure of the circulation system,
including
the blood vessels to and from the heart and lungs, liver and
kidney
8. H. Biology Chapter: 1 & 2
Chapter-6: Internal Transport
[9.9,9.10,9.15,9.8,9.3,9.1,9.2,9.4,9.6,9.7,9.5,9.11,9.12,9.13,9.14,9.16,9.17,9
.18,9.19]
[8.10,8.11,8.8,8.7]
[1.15]
To-dos:
Read the chapter thoroughly
Answer the following questions
Make a word file having these answer typed along with
question
Save it as “Question Answers of Chapter 8”
List of Questions:
1. What do you understand by “Online Community”? Name the types
of
online communities that you have learned from this chapter.
2. What does “Function of an online community” mean?
3. What does “Features of an online community” mean?
4. Fill up the following table with required information. First one
is done for
you. Community 2 Examples 1 Function 2 features
Social networks Flickr
4 Demand and Advertisement
5 Fothergill & Sons
7 The Market for FA Cup Final Tickets at
Wimble
8 NG Chocolate
10 New Cars
10 Income Elasticity for Red Meat in Developing
Country
1 JCB
2 Superskiswiss.com
10 McDonald’s