Physics Topic
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Heat Energy & Temperature
Curriculum questions and revision modules on Heat Energy & Temperature.
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Sample Questions in Heat Energy & Temperature
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UTME / JAMB 2025
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5400kJ of heat energy was lost when some amount of steam condensed to water for drinking purposes at 15º C. What is the quantity of water collected? [L\(_f \) = 2.26 × 10\(^6\) Jkg\(^{-1}\), c\(_w\) = 4200 Jkg\(^{-1}K^{-1}\)]
UTME / JAMB 2025
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How long will it take to heat 4 kg of water from 30ºC to 65ºC using an electric kettle taking 5 A from a 240 V supply?
(Specific heat capacity of water = 4200 J kg\(^{-1}\) K\(^{-1}\))
UTME / JAMB 2025
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The quantity of heat required to convert 5kg of ice at its melting point to water without a change of temperature is
WAEC / WASSCE 2025
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A body of specific heat capacity 450 Jkg\(^{-1}\)K\(^{-1}\) falls to the ground from rest through a vertical height of 20 m. Assuming conservation of energy, calculate the change in temperature of the body striking the ground level. (g = 10 ms\(^{-2}\))
WAEC / WASSCE 2025
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Hot water at temperature of t is added to twice that amount of water at a temperature of 30°C. If the resulting temperature of the mixture is 50°C, calculate t
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