EVERYDAY SCIENCE PAPER 1996
Note: Attempt TEN questions. All questions carry equal marks. Draw diagrams where necessary. Negative marking would be done for incorrect answers in Question Nos. 1 and 2.
1. Which of the following statements are true.
a) Jabir Ibne Hayyan was the author book Kitab Al- Manazir.
b) Abyl Qasim Al-Zahravi was a famous Muslim mathematician.
c) The speed of light is nearly 300,000 km/sec.
d) Ideally water can e used as a car fuel after electrolysis.
e) A machine helps us do more work with less force.
f) Our eye is very sensitive to blue light.
g) We can receive TV sound signal on our FM radio sets.
h) Sound can travel through vacuum.
i) Famous Muslim botanist Ibn Al Baitar lived during the period 700-90 A.D.
j) A ceramic engine would have greater efficiency.
2. Fill in the blanks with the correct choice.
a) Al Beruni died in ____________ A.D. (848, 1048, 1248)
b) Abu Ali Sina was born in ____________. (Iraq, Turkey, Spain)
c) ____________ colour has shortest wavelength. (blue, yellow, green)
d) ____________ metal has the highest electrical conductivity. (silver, tungsten, copper)
e) Light travels fastest in ____________. (glass, vacuum, plastics)
f) Our solar system has about ____________ satellites. (thirty-five, fifty, ninety-six)
g) The universe is ____________. (contracting, expanding, stationary)
h) The disease, hemophilia is caused by the deficiency of vitamin ____________ (A, K, D)
i) ____________ is a natural polymer. (glucose, protein, polyethylene)
j) ____________ cannot be nominated for the Nobel Prize. (physicists, economists, astronomers)
3. Define any five of the following terms.
a) Biogas
b) Geothermal energy
c) Vaccine
d) Antibiotic
e) Ceramics
f) Light year
4. Briefly discuss classification of plants giving suitable example of each type.
5. What are Endocrine Glands? Name any two. From which part of the body are the following secreted:
a) Insulin
b) Thyroxin
c) Adrenaline
d) Oestrogen
e) Testosterone
f) Cortisol
6.What does laser stand for? Describe four different applications, clearly stating their principle.
7. Define energy. What are its units in the metric system? Name two devices each in which major part of electrical energy is converted into hear, light, sound, mechanical energy.
8. What do the following scientific abbreviations stand for?
a) LPG
b) TNT
c) RNA
d) CNG
e) ATP
f) RBC
g) ECG
h) PVC
i) RAM
j) CFC
9. Write short notes on any two of the following
a) Acid rain
b) Green house effect
c) Ozone depletion
10. What are the three components of the CPU in a computer? What is the function of each?
11. Draw clearly the vertical section of a human body. Indicating various parts. How are adult human teeth classified?
12. Briefly describe the principle and function of a camera. Mention its essential parts along with brief comparison with an eye.
13. Explain briefly, the formation of day and night. How do seasonal variations occur on our earth?
14. Differentiate between any five of the following
a) Thermoplastics and thermosetting plastics
b) Lunar eclipse and solar eclipse
c) Asteroid and meteorite
d) Renewable and non-renewable energy resources
e) Endothermic and exothermic reactions
f) Star and planet
g) Nuclear fission and nuclear fusion
15. Fill in the blanks
a) ______________ are biological catalysts which have multiple function in the body.
b) The difference between electrical charges at the two ends of a conductor is called ______________.
c)The branch of zoology which deals with the study of insects is called ______________.
d) Electric current is measured by an ______________.
e) Dry ice is solid ______________.
f) Fuels formed from animal and plant matter that lived thousands of years ago are known as ______________.
g) Light with larger wavelength than that of the red colour is called ______________.
h) Penicillin was discovered by ______________.
i) Medulla Oblongata connects the ______________ with the spinal chord.
j) The pH of normal human blood is ______________.