Heat and Internal Energy
Physics ⇒ Heat and Thermodynamics
Heat and Internal Energy starts at 7 and continues till grade 12.
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See sample questions for grade 7
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?
Describe what happens to the internal energy of water as it is heated from 20°C to 100°C.
Explain why a metal bench feels hotter than a wooden bench when both are left in the sun.
Explain why ice at 0°C is more effective in cooling a drink than water at 0°C.
Explain why wearing dark clothes in the sun makes you feel hotter than wearing white clothes.
What happens to the internal energy of ice as it melts?
What is heat?
What is the difference between heat and temperature?
What is the main reason metals feel colder than wood at the same temperature?
