Heat and Internal Energy
Physics ⇒ Heat and Thermodynamics
Heat and Internal Energy starts at 7 and continues till grade 12.
QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Heat and Internal Energy.
How you perform is determined by your score and the time you take.
When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.
See sample questions for grade 7
A metal spoon is placed in a cup of hot tea. After a while, the spoon becomes warm. Which process is responsible for this?
A pot of water is heated on a stove. The water at the bottom gets hot and rises, while cooler water moves down. What is this process called?
A student places her hand above a candle flame and feels warmth. Which method of heat transfer is mainly responsible?
Describe what happens to the internal energy of water as it is heated from 20°C to 100°C.
A 100 g block of iron is heated from 20°C to 30°C. If the specific heat capacity of iron is 0.45 J/g°C, how much heat is absorbed?
A metal spoon is placed in a cup of hot tea. After a while, the spoon becomes warm. Which process is responsible for this?
A pot of water is heated on a stove. The water at the bottom gets hot and rises, while cooler water moves down. What is this process called?
A student places her hand above a candle flame and feels warmth. Which method of heat transfer is mainly responsible?
Which method of heat transfer does not require a medium?
(1) Conduction
(2) Convection
(3) Radiation
(4) Evaporation
Which of the following increases when a substance is heated?
(1) Mass
(2) Internal energy
(3) Volume
(4) Density
Which of the following is a good insulator of heat?
(1) Iron
(2) Silver
(3) Wool
(4) Copper
Which of the following is NOT a method of heat transfer?
(1) Conduction
(2) Reflection
(3) Convection
(4) Radiation
Fill in the blank: The amount of heat required to change the state of 1 kg of a substance without changing its temperature is called __________ heat.
Fill in the blank: The amount of heat required to raise the temperature of 1 gram of water by 1°C is called a __________.
Fill in the blank: The energy needed to raise the temperature of 1 kg of a substance by 1°C is called __________ heat capacity.
Fill in the blank: The energy stored in the movement and arrangement of particles in a substance is called __________ energy.
True or False: Heat always flows from a colder object to a hotter object.
True or False: Heat can be transferred in a vacuum by conduction.
True or False: Internal energy depends on both the temperature and the number of particles in a substance.
True or False: The higher the temperature of an object, the greater its internal energy.
