Advertisements
Advertisements
Question
Why is a cement floor laid in small pieces with gaps in between?
Advertisements
Solution
The floor is laid in small pieces with gaps in between to allow for the expansion during summer. However glass strips can be placed in the gaps.
APPEARS IN
RELATED QUESTIONS
Write true or false for a given statement.
Heat flows from a body at a high temperature to a body at a low temperature when they are kept in contact.
Write true or false for a given statement.
A mercury thermometer makes use of the property of the expansion of liquids on heating.
Fill in the blank
Liquids expand _______ than the solids.
The fig. shows a glass tumbler containing hot milk which is placed in a tub of cold water. State the direction in which heat will flow.
Why do telephone wires sag in summer ?
Name a liquid which is a good conductor of heat.
Why is a ventilator provided in a room?
Why do we prefer to wear white or light coloured clothes in summer and black or dark coloured clothes in winter ?
______ is greater for liquids than solids and it is maximum in gases.
When heat energy is added to a substance, the kinetic energy of its particles ______ and so the particles move at a higher speed.
