9th Class Physics Chapter 5 Test5. Pressure and Deformation in Solids

Q1. Multiple choice questions (Attempt all · 10 × 1 = 10)

1. The device which is used to measure the atmospheric pressure is
   1. monometer
   2. speedo meter
   3. barometer
   4. galvanometer
2. The liquid barometer works on the principle of
   1. hydrostatic equilibrium
   2. stable equilibrium
   3. unstable equilibrium
   4. neutral equilibrium
3. The pressure exerted by a man on the surface of earth will be smaller when he.
   1. Stands on both feet
   2. Sits on the ground
   3. Stands on one leg
   4. Sleeps on the ground
4. F2 =
   1. #VALUE!
   2. #VALUE!
   3. #VALUE!
   4. None of these
5. P =
   1. F/A
   2. F × A
   3. A/F
   4. F - A
6. The ability of a deformed body to return to its original shape and size when the deforming forces are removed is called:
   1. Elasticity
   2. Deforming force
   3. Hook's Law
   4. All of these
7. Materials which does not regain its original shape after removal of the load producing deformation are termed as.
   1. Elastic materials
   2. Plastic materials
   3. Rigid materials
   4. Hooke's materials
8. A girl of mass 50 kg wear heels with an area of 2 cm2 in contact with the ground. The pressure she exerts on ground is.
   1. 4 × 10-5 Pa
   2. 245 × 104 Pa
   3. 4 × 10-4 Pa
   4. 4 × 105 Pa
9. The atmospheric pressure will be smaller at.
   1. Islamabad
   2. Peshawar
   3. Lahore
   4. Murree
10. Pressure is a:
    1. vector
    2. scalar
    3. derived
    4. Both b & c