Physics - Heat & Thermo Question with Solution | TestHub
PhysicsHeat & ThermoThermodynamicsMedium2 minQB
PhysicsMediumsingle choice
A block is moving with velocity on a rough surface. After some time block stops.
Statement-1: The internal energy of block increases during this time interval.
Statement-2: Due to friction between block and surface, the block gets heated up.
Options:
Answer:
A
Solution:
The lost kinetic energy is shared between the block and the surface as heat; the block itself does not necessarily gain internal energy: S-1 false. Friction does heat the block: S-2 true.
Stream:JEESubject:PhysicsTopic:Heat & ThermoSubtopic:Thermodynamics
⏱ 2mℹ️ Source: QB
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