science

Physics
Q No. 1) Define fundamental unit. Write SI unit of density and current. (1+1)
Q No.2) Define Relative motion. Write the formula of acceleration and velocity. (1+1)
Q No.3) Winding roads are mode in hills. Why? Classify sea saw and shovel.(1+1)
Q No.4) Write two differences between barometer and pressure gauze. (2)
Q No. 5) What do you mean by power? Write one different between potential and kinetic energy.(2)
Q No.6) What type of energy is possessed in the following action? (2)
a) Leg lifted to kick ball
b) Burning matchstick
c) Ringing bell
d) Bread
Q No.7) What effects is seen in kinetic energy possessed by body when its velocity is tripled? Show mathematically. (2)
Q No.8) What are the temperatures of the boiling and freezing water in Fahrenheit and Centigrade scale in sea level? (2)
Q No.9) Kink is made in clinical thermometer, Why? (2)
Q No.10) Define refraction of light. Write one use of concave mirror. (2)
Q No.11) Write any two differences between converging mirror & diverging mirror. (2)
Q No.12) Study the given figure and answer the followings.(2)
i) Name AB & BC.
ii) Which one rarer & which is denser medium?
Q No.13) Write energy conversion by Radio and microphone. Ram lifts a weight of 50 kg to a height of 10m in 2m. Shyam lifts the same weight to same height in 3 minutes. By how much power of Ram is greater than that of Shyam? (2+3)
Q No. 14) What types of images are formed by a concave mirror when an object is placed
i) between C and F
ii) between F and P
Also write one nature of image in each (2.5+2.5)

Chemistry
Q No.15) Write molecular formula of Calcium carbonate and magnesium chloride by criss-cross method (2)
Q No.16) Name the methods of separation for following mixtures (2)
a) Rice and husk
b) Alcohol and water
c) Cream from butter
d) Red ink & black ink


Q No.17) Write two differences between Acid & Base (2)
Q No.18) Name any two alkalis. Make a table to show indicator tests for Acid & base. The indicators used are Red & blue litmus, methyl orange and phenolphthalein. (1+4)


Biology
Q No.19) Define National Park. Name any two national parks of Nepal. (2)
Q No.20) Define cross pollination. Give an example of complete and incomplete flower each. (1+1)
Q No.21) Classify the pine with one major characteristics.
Q No.22) Write two differences between pollination and fertilization.)2)
Q No.23) Draw a labeled diagram of mustard flower.(2)
Q No.24) Define hermaphrodite. Give two examples.(2)
Q No.25) Why are arthropods found abundant in environment?(2)
Q No.26) Write two differences between silverfish and starfish. Write the name of phylum of liver fluke and Unio with one major character.(2+3)

Geology & Astronomy
Q No. 27) Classify the following rocks. (2)
a. Obsidian
b. Limestone
c. Slate
d. Graphite
Q No. 28) Plutonic rocks are hard in nature, Why? Write one example of such rock. (1.5+0.5)
Q No. 29) Which layer of atmosphere is also called protective Shield? Why? (0.5+1.5)
Q No.30) Write two differences between exosphere and stratosphere. Draw a neat labeled diagram of different layers of atmosphere. (2+3)

The End