Thermal Equilibrium
Physics ⇒ Heat and Thermodynamics
Thermal Equilibrium starts at 8 and continues till grade 12.
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See sample questions for grade 8
A block of iron at 50°C is placed in a container of water at 30°C. After some time, both reach 35°C. What is this final state called?
A cup of hot tea is left in a room at 25°C. What will happen to the temperature of the tea over time?
A metal block at 80°C is placed in water at 20°C. If they reach thermal equilibrium at 30°C, which object lost heat?
A scientist places a thermometer in a beaker of water. After a few minutes, the thermometer reads 25°C. What does this indicate about the thermometer and the water?
A block of iron at 50°C is placed in a container of water at 30°C. After some time, both reach 35°C. What is this final state called?
A cup of hot tea is left in a room at 25°C. What will happen to the temperature of the tea over time?
A metal block at 80°C is placed in water at 20°C. If they reach thermal equilibrium at 30°C, which object lost heat?
A scientist places a thermometer in a beaker of water. After a few minutes, the thermometer reads 25°C. What does this indicate about the thermometer and the water?
If two objects are in thermal equilibrium, which of the following must be true? (1) They are made of the same material. (2) They have the same temperature. (3) They have the same mass. (4) They are both solids.
Which law states that if two bodies are each in thermal equilibrium with a third body, then they are in thermal equilibrium with each other? (1) Zeroth Law of Thermodynamics (2) First Law of Thermodynamics (3) Second Law of Thermodynamics (4) Third Law of Thermodynamics
Which of the following best describes thermal equilibrium? (1) Both objects are at the same temperature and no heat flows. (2) Both objects are at different temperatures and heat flows from one to the other. (3) Both objects are at the same temperature but heat still flows. (4) Both objects are at different temperatures and no heat flows.
Which of the following is a correct statement about thermal equilibrium? (1) It can only occur between solids. (2) It requires objects to be in thermal contact. (3) It means objects have different temperatures. (4) It only happens at 0°C.
Fill in the blank: The state in which two objects have the same temperature and no heat flows between them is called ______.
Fill in the blank: The transfer of heat stops when ______ is reached.
Fill in the blank: The Zeroth Law of Thermodynamics helps us define the concept of ______.
Fill in the blank: The Zeroth Law of Thermodynamics is essential for the concept of ______ measurement.
True or False: At thermal equilibrium, the average kinetic energy of the particles in both objects is the same.
True or False: At thermal equilibrium, the temperatures of all objects in contact are equal.
True or False: Heat always flows from a colder object to a hotter object until thermal equilibrium is reached.
True or False: The concept of thermal equilibrium applies only to solids.
