Advertisements
Advertisements
Question
The following figure shows a copper washer. Explain, giving reasons, whether the following characteristics of the washer increase, decrease, or remain the same when it is heated.
(a) Internal diameter
(b) Volume
(c) Mass
(d) Density
(e) External diameter
Advertisements
Solution
On heating the copper washer
(a). Its internal diameter will increase as the copper washer expands outwards
(b). Volume will increase as the size of the metal expands on heating
(c). Mass will remain the same as the mass does not change with change in temperature
(d). Density will decrease as the volume of the washer increases on heating and density is inversely proportional to volume
(e). External diameter will increase because the copper washer expands outwards
APPEARS IN
RELATED QUESTIONS
Define temperature on a conventional basis.
Two bodies at different temperatures are placed in contact with each other. State the direction in which heat flows.
What is a bimetallic strip?
Explain the following:
Conduction is not possible in vacuum.
Analogy
Heat : Joule :: Temperature : _____
Distinguish between heat and temperature.
Assertion: When water is heated up to 100°C, there is no raise in temperature until all water gets converted into water vapour.
Reason: Boiling point of water is 10°C.
