alleryStart learning →Compare expansion of equal-length metal rods. What else must match?
ATheir temperature increases
BTheir colours after heating
CTheir electrical resistances
DTheir masses per unit volume
Answer & Solution
Correct answer: A. Their temperature increases
Equal starting lengths and temperature increases allow the effect of different metals on expansion to be compared.
Keep practising Heat
Browse all Heat questions for ICSE Class 8, or explore more Physics topics.
Related questions
Fixed-mass air warms at fixed pressure. What increases?Stronger liquid-particle attraction means escape needs?Why can some surface particles escape a cool liquid?Wet clothes dry at room temperature because water can?Bubbles formed by steady boiling of pure water mainly contain?Boiling water is heated more strongly at fixed pressure. What changes?Pure water boils steadily at fixed pressure. Its temperature?Where does vaporization occur during boiling?