A body is permanently deformed and is unable to restore its original state after stress is removed, when a stress crosses

  • elastic limit
  • tensile limit
  • strain limit
  • pressure limit

As we gain altitude the density of air

  • increases
  • decreases
  • remains constant
  • none of above

At an altitude where there is no air, the atmospheric pressure would be

  • high
  • low
  • zero
  • double

They have no fixed shape or volume

  • solids
  • liquids
  • gases
  • all of above

The highly conducting state of matter is

  • plasma
  • solid
  • liquid
  • gas

As compared at sea level, the atmospheric pressure on mountains is

  • lower
  • higher
  • equal
  • zero

To push the liquid up in straw the air pressure inside it is

  • increased
  • decreased
  • remains constant
  • zero

The pressure is defined as the force acting per unit

  • volume
  • density
  • area
  • mass

The matter can be filled in any container of any shape is

  • liquids only
  • solid only
  • gas
  • liquids and solid

Mass of the liquid cylinder is equal to its

  • volume × density
  • volume + density
  • volume / density
  • volume - density

We can calculate pressure ‘P’ by the formula

  • area / force
  • force / area
  • force + area
  • force × area

In which of the following state, the molecules do not leave their position?

  • solid
  • plasma
  • gas
  • liquid

(Change in length/original length) is equal to

  • tensile strain
  • zero strain
  • constant strain
  • former strain

As compared to water, mercury is denser

  • 12 times
  • 11.5 times
  • 15 times
  • 13.6 times

Plasma is highly

  • conducting
  • non conducting
  • resistive
  • insulator

During cold chilly nights, the atmospheric pressure is

  • decreased
  • remains constant
  • becomes zero
  • increased

The instruments that measure atmospheric pressure are called

  • beam balance
  • thermometers
  • barometers
  • screw gauge

If stress produces a change in the length of an object then the strain is termed as

  • zero strain
  • constant strain
  • former strain
  • tensile strain

The density of metal spoon when its weight in air is 0.48 N and in water is 0.42 N is

  • 1000 kg m-3
  • 4000 kg m-3
  • 6000 kg m-3
  • 8000 kg m-3

If the length of wire is 1 m and cross-sectional area 5×10-5 m&sup2, when the wire stretched through 1 mm by a force of 10,000 N. The Young's modulus of the wire would be

  • 2×105 Nm-2
  • 2×109 Nm-2
  • 2×108 Nm-2
  • 2×1011 Nm-2
0 h : 0 m : 1 s

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