The property of a body to restore its original size and shape as the deforming force ceases to act is called

  • energy
  • floating
  • elasticity
  • density

The Earth is surrounded by a cover of air called

  • gravity
  • energy
  • ozone
  • atmosphere

(Density/mass) is equal to

  • power
  • area
  • energy
  • volume

The force acting on the unit area on the surface is called

  • strain
  • pressure
  • stress
  • density

The density of mercury is

  • 13.6 times of water
  • 12 times of water
  • 10 times of water
  • 20 times of water

In SI units, the unit of pressure is

  • Pa
  • pi
  • omega
  • newton

The states of matter are

  • 2
  • 3
  • 5
  • 6

The SI unit of power is Young's modulus is

  • Nm-3
  • Nm4
  • Nm-2
  • Nm-1

A boat of 8 meters and 40 meter long floats on water. If 125000 N of cargo is added, it will sink

  • 10 cm
  • 4 cm
  • 15 cm
  • 20 cm

Stone, metal spoon, pencil are examples of

  • liquids
  • gases
  • solids
  • plasma

The up thrust of water acting on a wooden cube of sides 10cm immersed completely in water is

  • 5 N
  • 10 N
  • 3 N
  • 2 N

Gases are much lighter than

  • solids only
  • liquids only
  • gas
  • solids and liquids

The ratio of stress to tensile strain is called

  • Pascal's modulus
  • Young's modulus
  • Newton's modulus
  • Charles's Law

The maximum limit up to which stress is applied on the body without deformation is called

  • limit
  • elastic limit
  • strain
  • torque

The matter whose molecules have random motion and move with very high velocities is

  • gas
  • plasma
  • solids
  • liquid

The unit of strain is

  • newton
  • joule
  • pascal
  • no unit

A comparison of such a change caused by the stress with the original shape, volume or length is called

  • stress
  • strain
  • density
  • elasticity

Solids have fixed

  • volume only
  • shape only
  • position
  • volume and shape

SI unit of density is

  • kgm-4
  • kgm-3
  • kgm-2
  • kgm

A floating object displaces a fluid having a weight equal to the weight of the object as per the

  • principle of floatation
  • Einstein principle
  • Pascal's principle
  • Newton's principle
0 h : 0 m : 1 s

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