Thermal Properties of Matter Practice Questions
Class 11 · Physics · 1728 free MCQs with instant results and detailed explanations.
1728
Total
612
Easy
903
Medium
213
Hard
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Topics in Thermal Properties of Matter
Calorimetry
302
Heat Transfer
522
Change of State
504
Thermal Expansion
228
Temperature
172
Sample Questions from Thermal Properties of Matter
Here are 10 sample questions. Start a quiz to get randomized questions with scoring.
Q1
Easy
What is the principle behind a calorimeter?
A.
Conservation of mass
B.
Conservation of energy
C.
Conservation of momentum
D.
Conservation of charge
Show Answer & Explanation
Correct Answer: B
A calorimeter measures heat transfer, which follows the law of conservation of energy.
Q2
Easy
What does specific heat capacity represent?
A.
Heat required to raise the temperature of a substance
B.
Total energy in a substance
C.
Amount of heat lost in a reaction
D.
Heat required to change state
Show Answer & Explanation
Correct Answer: A
Specific heat capacity is defined as the amount of heat required to raise the temperature of a unit mass of a substance by one degree Celsius.
Q3
Easy
Which of the following materials generally has the highest specific heat capacity?
A.
Copper
B.
Water
C.
Iron
D.
Aluminum
Show Answer & Explanation
Correct Answer: B
Water has a high specific heat capacity compared to most metals, making it effective for thermal regulation.
Q4
Medium
A metal rod of length L expands by ĪL when heated through a temperature change ĪT. What is the coefficient of linear expansion (Ī±) of the rod?
A.
Ī± = ĪL / (L * ĪT)
B.
Ī± = ĪT / (L * ĪL)
C.
Ī± = L / (ĪL * ĪT)
D.
Ī± = ĪL * (L + ĪT)
Show Answer & Explanation
Correct Answer: A
The coefficient of linear expansion is defined as the change in length per unit length per degree change in temperature.
Q5
Medium
If a liquid expands in a container, which of the following will be true?
A.
The temperature of the liquid decreases.
B.
The liquid will always overflow.
C.
The density of the liquid increases.
D.
The volume of the liquid increases.
Show Answer & Explanation
Correct Answer: D
When a liquid is heated, it gains energy causing its particles to move further apart, thus increasing its volume.
Q6
Medium
A glass tube has a drop of mercury at its center. If the tube is heated, what happens to the mercury?
A.
It contracts and moves downward.
B.
It remains stationary.
C.
It expands and moves upward.
D.
It evaporates.
Show Answer & Explanation
Correct Answer: C
Mercury expands upon heating, causing it to rise in the tube due to thermal expansion.
Q7
Medium
Which of the following is a consequence of thermal expansion in materials?
A.
Bending of bridges during summer.
B.
Deformation of metals at low temperatures.
C.
Increase in density of gases with heating.
D.
Decrease in pressure of liquids with heating.
Show Answer & Explanation
Correct Answer: A
During summer, the increased temperature causes materials like metal in bridges to expand, potentially causing bending.
Q8
Hard
A 300 g block of ice at -5Ā°C is put into 400 g of water at 70Ā°C. How much ice will melt before thermal equilibrium is reached? (Latent heat of fusion = 334 J/g)
A.
50 g
B.
100 g
C.
150 g
D.
200 g
Show Answer & Explanation
Correct Answer: C
Calculating the heat lost by water and the heat needed to melt the ice allows us to find the amount of ice that melts.
Q9
Hard
A 250 g piece of aluminum at 150Ā°C is placed into 500 g of water at 25Ā°C. Calculate the final temperature of the system. (Specific heat of aluminum = 0.897 J/gĀ°C, specific heat of water = 4.18 J/gĀ°C)
A.
40Ā°C
B.
45Ā°C
C.
50Ā°C
D.
55Ā°C
Show Answer & Explanation
Correct Answer: C
The heat lost by aluminum equals the heat gained by water. By setting up the heat transfer equations, we can find the final temperature.
Q10
Hard
A 50 g ice block at 0Ā°C is mixed with 200 g of water at 50Ā°C. What is the final temperature if all the ice melts? (Latent heat of fusion = 334 J/g)
A.
10Ā°C
B.
20Ā°C
C.
30Ā°C
D.
40Ā°C
Show Answer & Explanation
Correct Answer: B
Calculate the heat lost by the water and the heat gained by the ice to find the final equilibrium temperature.
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Thermal Properties of Matter ā Class 11 Physics Practice Questions Online
This page contains 1728 practice MCQs for the chapter Thermal Properties of Matter in Class 11 Physics. The questions are organized by difficulty ā 612 easy, 903 medium, 213 hard ā so you can choose the right level for your preparation.
Every question includes a detailed explanation to help you understand the concept, not just memorize answers. Take a timed quiz to simulate exam conditions, or practice at your own pace with no time limit. This chapter covers 5 topics, giving you comprehensive coverage of the entire chapter.