10th Science Chapter 3 Question Paper

Once you finish studying a specific topic, testing your knowledge chapter by chapter is the best way to ensure long-term retention. This Class 10 Science Chapter 3 Question Paper is uniquely designed to thoroughly evaluate your understanding of this entire unit. Comprising high-yield boards-pattern questions, formula applications, and conceptual problems, this chapter test allows you to find your immediate weak links, practice targeted problem-solving, and fully master the chapter before moving forward.

STD: 10TH SSLC SCIENCE TIME: 1.30 hr

CHAPTER - 3 (Type - A) MARKS: 50

PART - A [10 × 1 = 10]

Note: (i) Answer all the questions.
(ii) Choose the most appropriate answer and write the corresponding option code of the answer.
EXAM NO: ____________________

1. _______ is a property which determines whether a body is in equilibrium or not with the surroundings.
(A) pressure (B) Temperature (C) both (A) and (B) (D) none of these

2. _______ is the property, which determines the direction of flow of heat.
(A) pressure (B) Temperature (C) both (A) and (B) (D) none of these

3. absolute scale temperature is also known as
(A) absolute temperature (B) critical temperature
(C) thermodynamic temperature (D) all of the above

4. Unit of heat energy is
(A) Kelvin (B) Celsius (C) Fahrenheit (D) calories

5. The value of universal gas constant
(A) 3.81 J mol^-1 K^-1 (B) 8.03 J mol^-1 K^-1
(C) 1.38 J mol^-1 K^-1 (D) 8.31 J mol^-1 K^-1

6. In the Given diagram, the possible direction of heat energy transformation is

A303 K B304 K C305 K

a) A ← B, A ← C, B ← C b) A → B, A → C, B → C
c) A → B, A ← C, B → C d) A ← B, A → C, B ← C

7. Temperature is the average _______ of the molecules of a substance
a) difference in K.E and P.E b) sum of P.E and K.E c) difference in T.E and P.E d) difference in K.E and T.E

8.
Assertion: If one end of the rod is heated, other end also is heated.
Reason: Heat always flows from a region of lower temperature to higher temperature of the rod.
(A) Both the assertion and the reason are true and the reason is the correct explanation of the assertion. (B) Both the assertion and the reason are true but the reason is not the correct explanation of the assertion. (C) Assertion is true but the reason is false. (D) Assertion is false but the reason is true.

9. When a body is heated or cooled
(A) Heat gained by the cold system = Heat lost by the hot system (B) Heat gained by the cold system > Heat lost by the hot system (C) Heat gained by the cold system < Heat lost by the hot system (D) none of the above

10. The absolute scale of temperature of a body is
(A) 0 K (B) 100 K (C) 1 K (D) none

PART - B [5 × 2 = 10]

11. Define one calorie.

12. State Boyle's law

13. State Charles's law

14. State Avogadro law

15. What are the other units of heat energy transfer?

PART - C [4 × 4 = 16]

16. Distinguish between ideal gas and real gas.

17. Derive ideal gas equation.

18. Keeping the temperature as constant, a gas is compressed four times of its initial pressure. The volume of gas in the container changing from 20cc (V₁ cc) to V₂ cc. Find the final volume V₂.

19.
(a) What is co-efficient of real expansion?
(b) What is co-efficient of apparent expansion?

PART - D [2 × 7 = 14]

20. Explain the experiment of measuring the real and apparent expansion of a liquid with a neat diagram.

21.
(a) A container whose capacity is 70 ml is filled with a liquid up to 50 ml. Then, the liquid in the container is heated. Initially, the level of the liquid falls from 50 ml to 48.5 ml. Then we heat more, the level of the liquid rises to 51.2 ml. Find the apparent and real expansion.
(b) What are the Characteristic features of heat energy transfer?