Physics
Related Questions
Match the following:
Column A Column B (a) mercury (i) insulator (b) wood (ii) water from 0°C to 4°C (c) aluminium (iii) absorbs (d) contracts (iv) conductor (e) black surface (v) thermometer If we add a lump of ice to a tumbler containing water:
- heat flows from water to ice
- heat flows from ice to water
- heat flows from water to ice if water is more
- heat flows from ice to water if ice is more
A thermometer uses:
- water
- mercury
- air
- none of the above
Which statement is correct:
- Iron rims are cooled before they are placed on cart wheels.
- A glass stopper gets tight on warming the neck of the bottle.
- Telephone wires sag in winter, but becomes tight in summer.
- A little space is left between two rails on a railway track.