Heat and Temperature – Concepts & Differences MCQs

1. What is the primary difference between heat and temperature?
(A) Heat is a measure of energy, and temperature is a measure of the force of the energy.
(B) Heat refers to the motion of atoms, while temperature is the average kinetic energy of atoms.
(C) Heat is related to volume, and temperature is related to mass.
(D) Heat is a form of temperature.

2. Which of the following is the SI unit of temperature?
(A) Kelvin
(B) Joule
(C) Celsius
(D) Watt

3. Heat is transferred from one object to another due to a difference in:
(A) Pressure
(B) Temperature
(C) Volume
(D) Mass

4. Which of the following instruments is used to measure temperature?
(A) Thermometer
(B) Barometer
(C) Calorimeter
(D) Hygrometer

5. The flow of heat always occurs from a region of _______ temperature to a region of _______ temperature.
(A) Higher, lower
(B) Lower, higher
(C) Equal, equal
(D) High, high

6. What is the main unit of heat in the SI system?
(A) Joule
(B) Kelvin
(C) Celsius
(D) Watt

7. Temperature is a measure of:
(A) Total heat energy in a substance
(B) The motion of atoms in a substance
(C) The force exerted by a gas on the walls of its container
(D) The total kinetic energy of molecules in a gas

8. What happens to the temperature of a substance when it absorbs heat?
(A) It decreases
(B) It remains constant
(C) It increases
(D) It fluctuates randomly

9. Which of the following is not a method of heat transfer?
(A) Conduction
(B) Convection
(C) Radiation
(D) Reflection

10. The specific heat capacity of a substance refers to:
(A) The heat energy required to change the substance’s state
(B) The heat energy required to raise the temperature of a unit mass of the substance by one degree Celsius
(C) The total heat energy in the substance
(D) The rate at which heat is transferred through a material