Advertisements
Advertisements
प्रश्न
What are the effects of heat?
Advertisements
उत्तर
- Expansion
- Increase in temperature
- Change in state
APPEARS IN
संबंधित प्रश्न
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.
Telephone wires are kept tight between the two poles in summer.
Write true or false for a given statement.
Water is a bad conductor of heat.
Fill in the blank
Gases expand _______ than the liquids.
Select the correct alternative
The temperature of pure melting ice is
Iron rims are heated before they are fixed on the wooden wheels. Explain the reason.
Why is a cement floor laid in small pieces with gaps in between?
An empty glass bottle is fitted with a narrow tube at its mouth. The open end of the tube is kept in a beaker containing water. When the bottle is heated, bubbles of air are seen escaping into the water. Explain the reason.
Why is an oven made of double walls with the space in between filled with cork ?
The bottom of a cooking utensil is painted black. Give the reason.
