Heat questions | form five Physics
Find Heat examination questions, form five Physics in acaproso.com
| # | Question |
|---|---|
| 1 | Give the evidence for the validity of the first law of thermodynamics. Short answers |
| 2 | (i)Based on Wien`s displacement law, what would happen on a black body when constantly heated? Mathematical Calculation |
| 3 | Why is it preferred to purchase a cooking utensil of low specific heat capacity? Short answers |
| 4 | How does a fish survive in a pond during an extreme winter season even if the pond is deep frozen on the surface? Short answers |
| 5 | The ice on a pond is 10 mm thick. If the temperature above and below its surface are 263 K and 273 K respectively; calculate the rate of heat transfer through the ice. Mathematical Calculation |
| 6 | Why water is preferred as a cooling agent in many automobile engines? Short answers |
| 7 | A thermometer has wrong calibration as it reads the melting point of ice as -10°C. If it reads 40°C in a place where the temperature reads 30°C; determine the boiling point of water on this scale. Mathematical Calculation |
| 8 | Analyse three practical applications of thermal expansion of solids in daily life situations. Short answers |
| 9 | A closed metal vessel containing water at 75°C, has a surface area of 0.5 m 2 and uniform thickness of 4.0 mm. If its outside temperature is 15°C, calculate the heat loss per minute by conduction. Mathematical Calculation |
| 10 | (i)Sketch the graph to illustrate how the energy radiated by a black body is distributed among various wavelengths. Short answers |
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