INDIAN SCHOOL WADI KABIR
CLASS: X FORMATIVE ASSESSMENT - II MARKS: 20
DATE: 13.08.14 SCIENCE TIME: 60MIN.
General Instructions:
· All the questions are compulsory. Marks are indicated against each question.
· Ink killer/whitener should not be used in answer scripts.
· Write the same question number as given in the question paper.
SECTION A (PHYSICS – 7 MARKS)
1. Give an application for the heating effect of electric current. (1)
2. State any one advantage of connecting electrical devices in parallel with the battery instead of connecting them in series. (1)
3. In a house an electric bulb of 60W is used for 15 hours and an electric heater of 750W is used for 10 hours every day. Calculate the cost of using the bulb and the heater for 30 days if the cost of 1 unit of electrical energy is Rs.2. (2)
4. a) Define electric power?
b) An electric heater is rated 1000W-220V. Calculate the resistance of the heating element. (3)
SECTION B (CHEMISTRY - 7 MARKS)
5. Define the following terms with the help of one example each.
a) Corrosion b) Rancidity (2)
6. a) Which gas is usually liberated when an acid reacts with a metal?
b) What would be the colour of litmus in a solution of sodium carbonate? (1)
7. What is meant by the term pH of a solution? The pH of rain water collected from two cities A and B
was found to be 6 and 5 respectively. The water of which city is acidic? (2)
8. Though the compounds such as glucose and alcohol have hydrogen atoms in their molecules
yet they are not categorized as acids. Why? (2)
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SECTION C (BIOLOGY – 6 MARKS)
9. With the help of a schematic flow chart show the break-down of glucose in a cell to provide
energy break-down: (2)
a) in the presence of oxygen.
b) when there is lack of oxygen.
10. Explain the process of digestion in the buccal cavity. (2)
11. Observe the figure given below and answer the following questions: (2)
a) Name the organ where digestion of protein starts.
b) Name the part of the alimentary canal which has finger-like projections.
c) Name the part of the alimentary canal where absorption of water and minerals takes place.
d) Name the part of the alimentary canal where digestion of carbohydrate starts
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