Thermal expansion questions | form three Physics

Bimettalic strips bend when heated beacause metals:
A. become softer when heated
B. expand in opposite direction
C. have different expansivities
D. have same expansivities

Answer / Solution

UNSOLVED

Heat is _______ while temperature is ____

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UNSOLVED

The temperature of 2kg of a metal block was raised from 40°C to 90°C. The heat energy used was 38,000J. Calculate the specific heat capacity of the metal

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UNSOLVED

A railway mechanical engineer wants to eliminate thermal expansion effects on the rails. The engineer should:
A. avoid thick rails
B. avoid stainless iron rails
C. leave rail supports unscrewed
D. leave space between the rails

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UNSOLVED

Which of the following liquids does NOT contract if cooled from 4°C to 0°C?
A Milk B Pure oil C Pure water
D Kerosene E Sea water.

Answer / Solution

UNSOLVED