The resistance of a metal increases with a decrease in temperature.

Name one substance whose resistance decreases with increase of temperature.

The electrical resistance of metals

How does resistance of a metal vary with temperature?

Can we increase or decrease friction?

Why does physisorption decrease with the increase of temperature?

The surface tension of a liquid decreases with temperature. True or False?

How does the elasticity of material change on, (a) increasing the temperature. (b) on heating and cooling gradually. (c) on hammering.