Class -X (ICSE)
Time: 2hrs
Science Paper - 1 (Physics)
Answer to this paper must be went on the paper provided separately.
You will not be allowed to write during the first 15 minutes.
This time is to be spent in reading the question paper.
The time given at the head of this paper is the time allowed for writing the answers,
SECTION-I is compulsory. Attempt ANY FOUR questions from SECTION-II
The intended marks for questions or parts of questions are given in brackets [].
SECTION-1[40 Marks]
(Attempt all questions from this wection)
Q.1. a) Write one condition of zero work done provided displacement is not zero.
b) Name the Kuctors affecting the turning effect of a body.
Is it possibly co have an accelerated motion with a constant speed? Explain.
dy - Why is a jap crew provided with a long arm!
Where does the position of centre of gravity lie for
D A circular laminai
A triangular lamina?
0.2.1 State the factors that determine work done by a body.
b) State the units of energy for moving electrons in electric-field. How is it related to S.I unit of
Define velocity Ratio. Will the velocity ratio of a machine change with change in its dimensio
State the energy changes in the following devices while in use.
D A loud speaker
1) A glowing electric bulb.
Derive the relationship between the SI and CGS unit of work.
0.3. a If the power of a motor be 100 KW. at what speed can it raise a load of 50000 N?
e
Share
Explanation:
What sum of money will amount to 22050 in 2 years and 23152.50 in 3 years at 5%
per annum compound interest?
Answer:
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