The materials which allow heat to pass through them easily are called?
Metals
Gases
Conductors
Insulators
When an ice cube is kept on the palm, it starts melting because?
of the presence of sweat on the palm
the heat energy of the palm gets transferred to the ice cube
the heat energy of the ice cube gets transferred to the palm
of the atmospheric and body pressure on the ice cube
Heat is transferred from the hotter end to the colder end of an object is known as?
Convection
Conduction
Radiation
Vaporisation
One litre of water at 30°C is mixed with one litre of water at 50°C. The temperature of the mixture will be?
80°C
more than 50°C but less than 80°C
20°C
between 30°C and 50°C
The cool air from the land moves towards the sea is called?
Wind
Land breeze
Sea breeze
Gentle breeze
Which is example for conductors?
Water
Air
Copper
Plastic
“When a layer of air receives enough heat from Earth's surface, it expands and becomes less dense. This layer is then pushed upward by buoyancy. The cool and heavy air sinks under this layer. This cycle repeats with the re-heating of the cool air.” The phenomenon described in the preamble is known as?
Induction
Which of the following units cannot be used to measure temperature?
Fahrenheit
Celsius
Pascal
Kevin
Transfer of heat in liquids and gases are called?
The materials which do not allow heat to pass through them easily are called?
Plastics
