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Test 1

The document contains a test on physical science with questions about specific heat, temperature conversions, differences between heat and temperature, and the role of water's specific heat. It provides a table with materials and their specific heats and formulas to derive the relationship between heat, mass, and temperature change.

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29 views1 page

Test 1

The document contains a test on physical science with questions about specific heat, temperature conversions, differences between heat and temperature, and the role of water's specific heat. It provides a table with materials and their specific heats and formulas to derive the relationship between heat, mass, and temperature change.

Uploaded by

kamalakararaoneela
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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TEST-1

SUBJECT: PHYSICAL SCIENCE Academic Year-(2020-2021)


CLASS: X CHAPTER-1: HEAT
NAME OF THE STUDENT:________________________________ ROLL NO:_____ MAX.MARKS:20
I. Answer the following questions 2x4=8
1. Explain the procedure of finding specific heat of solid experimentally.
(OR)
How do you prove average kinetic energy of molecules is directly proportional to the
absolute temperature?
2. Observe the table and answer the following questions (AS4)

a) Which liquid used as coolant? Why?


b) Which metal is best for cooking utensils? Why?
c) How much heat energy is required to rise 10 C of water of 1 gram?
d) Write the formula of specific heat of the substance?
(OR)
Derive Q=msΔT
II. Answer the following questions 3x2=6
3. Convert the following temperatures into Kelvin scale (AS1)
A) 270 C B) 1350 C
4. Write the difference between heat and temperature
5. How do you appreciate the role of the higher specific heat of water in stabilizing
atmospheric temperature during winter and summer seasons?
III. Answer the following questions 3x1=3
6. State the principle of method of mixtures.
7. A samosa appears to be cool outside but it is hot when we eat why?
8. Define specific heat
IV. Answer the following questions 6x𝟏/𝟐=3
9. 1 cal = _______ joule
10. Which device you select to measure the specific heat of a solid in the laboratory?
11. If the temperature of a steel rod is 330K, then its temperature in 0C is______
A) 550C B) 570C C) 590C D) 530C
12. If initial temperatures of the two samples of masses m1 and m2 be T1 and T2, then what
is the final temperature of the mixture (T) is ____
13. What is the S.I unit of specific heat?
14. Convert 1 cal/g- 0C into J/kg-J

M.SRINIVASA RAO(MSR), SA(PS) AGKMHS GUDIVADA PH:9848143855


Visit: srini science mind

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