When a substance gains heat the temperature

  • increases
  • decreases
  • remain same
  • stabilize

Heat gain causes a metal to

  • expand
  • contract
  • shrink
  • stable

Dull and black surfaces are heat's good

  • radiator
  • conductors
  • insulators
  • convectors

The flow of cool air from the sea towards land produces a

  • land breeze
  • sea breeze
  • sand storm
  • thunderstorm

Vacuum is a

  • conductor
  • insulator
  • both a and b
  • best conductor

The poor conductors of heat are also termed as

  • heat insulators
  • thermal insulators
  • both a and b
  • heat conductors

A breeze which is produced at night time when land loses more heat quickly is

  • land breeze
  • sea breeze
  • sand storm
  • thunderstorm

The hotter will be object the more will be heat

  • conduction
  • convection
  • radiation
  • convection currents

The measure of hotness of an object is known as

  • volume
  • density
  • temperature
  • heat

Reducing unnecessary heat loss or gain helps to

  • conserve energy
  • gain energy
  • lose energy
  • stabilize energy

Train if moved on bent tracks may be

  • derailed
  • faster
  • slow down
  • accelerated

The boiling point of water is

  • 98 °C
  • 100 °C
  • 97 °C
  • 0 °C

When energy is passed from one particle to another through a medium is called

  • conduction
  • convection
  • radiation
  • expansion

The instruments which are used to measure temperature are called

  • barometer
  • mercury
  • spectrometer
  • thermometer

Concrete roads on hot days do

  • expand
  • contracts
  • both a and b
  • break

If one end of metal rod is heated the whole rod becomes hot due to

  • conduction
  • convection
  • radiation
  • expansion

When the substance cool off there is a decrease in

  • size of substance
  • vibrations
  • temperature
  • all of them

A metal ball which is passing through metal ring will not pass after

  • heating
  • freezing
  • constant conditions
  • accelerating

The expansion and contraction among solid, liquids and gases the one which has greater tendency to expand is

  • solid
  • liquid
  • gas
  • molten

Water freezes at

  • 98 °C
  • 100 °C
  • 97 °C
  • 0 °C
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