Thermal Expansion Problems In Physics -Multiple Choice Questions Quiz

Interactive MCQs on “Thermal Expansion Problems In Physics”:

Solve the following 10 questions. Only one option is correct. Click on the “Submit” button when done. Click on the “embed” button to use this quiz on your website. Click on “WhatsApp” to share this quiz.

Question 1: When a substance is heated, it undergoes thermal expansion, leading to an increase in its:

(a) Mass
(b) Volume
(c) Density
(d) Weight

Question 2: Which of the following materials tends to have the highest coefficient of linear expansion?

(a) Glass
(b) Aluminum
(c) Steel
(d) Rubber

Question 3: The coefficient of linear expansion is defined as the change in length per unit length per degree Celsius. What are its units in the SI system?

(a) °C
(b) m
(c) m/°C
(d) °C⁻¹

Question 4: A brass rod of length 1 meter at 25°C expands to a length of 1.02 meters when heated. What is the coefficient of linear expansion of the brass?

(a) 2.0 x 10⁻⁵ °C⁻¹
(b) 2.0 x 10⁻⁶ °C⁻¹
(c) 2.0 x 10⁻⁴ °C⁻¹
(d) 2.0 x 10⁻³ °C⁻¹

Question 5: Which type of thermal expansion is exhibited by most substances?

(a) Linear expansion
(b) Area expansion
(c) Volume expansion
(d) Cubical expansion

Question 6: The coefficient of volume expansion (β) is related to the coefficient of linear expansion (α) as follows:

(a) β = α
(b) β = 2α
(c) β = 3α
(d) β = α/3

Question 7: Which substance is least affected by thermal expansion over a given temperature range?

(a) Water
(b) Copper
(c) Air
(d) Glass

Question 8: A steel pipe with an initial length of 5 meters is heated from 20°C to 120°C. If the coefficient of linear expansion for steel is 1.2 x 10⁻⁵ °C⁻¹, what is the change in length of the pipe?

(a) 0.06 cm
(b) 0.12 cm
(c) 0.24 cm
(d) 0.36 cm

Question 9: Which instrument is based on the principle of thermal expansion to measure temperature?

(a) Thermocouple
(b) Barometer
(c) Hygrometer
(d) Thermometer

Question 10: Why are expansion joints used in long bridges and railways?

(a) To reduce thermal expansion
(b) To increase thermal expansion
(c) To allow for thermal expansion and contraction
(d) To prevent any kind of expansion