The drag force is given by_________________?

Related Mcqs:

1. When a force is applied at one end of an elastic wire it produces at strain ∝ in the wire. If y is the youngs modulus of the material of the wire the amount of energy stored per unit volume of the wire is given by_________________?

   A. Y∝
   B. 2Y∝
   C. Y∝/2
   D. Y∝2

2. A ball of mass 0.2 kg is thrown vertically upwards by applying a force by hand. If the hand moves 0.2 m while applying the force and the ball goes up to 2 in height further, find the magnitude of the force. Consider g = 10m/s 2

   A. 22N
   B. 16N
   C. 20N
   D. 4N

   Submitted by: Huzaifa Naseer

3. A certain stress applied to an elastic material produces a certain strain in it. If the elastic limit is not exceeded the energy gained per unit volume of the material is given by_________________?

   A. Stress/strain
   B. (stress/strain)
   C. Stress x strain
   D. (Stress / strain)

4. The relationship between Tesla and smaller unit Gauss of magnetic induction is given by_________________?

   A. 1T = 103 G
   B. 1T = 10-4 G
   C. 1T = 10-2 G
   D. 1T = 104 G

5. Coercive force is the force which opposes ____________________?

   A. Demagnetization
   B. Breakage
   C. Extension
   D. Surface cracking

6. Two identical metal balls with charges + 2Q and – Q are separated by some distance, and exert a force F on each other. They are joined by a conducting wire, which is then removed. The force between them will now be_________?

   A. F
   B. F/2
   C. F/4
   D. F/8

   Submitted by: Tauseef Ali

7. The restoring force acting on the simple pendulum is given by_______________?

   A. mg sin θ
   B. mg sin θ
   C. mg cos θ
   D. mg cos θ

8. Various types of cancer are treated by_________________?

   A. Cobalt-60
   B. Strontium-90
   C. Carbon-14
   D. Nickel-63

9. Terminal velocity is given by equation_______________?

   A. Vt = gr2ρ
   B. Vt = 2gr2/9ρ
   C. Vt = gr2/9ρ
   D. Vt = 9gr2/2ρ

10. When a body is whirled in a horizontal circle by means of a string the centripetal force is supplied by______________?

    A. Mass of a body
    B. Velocity of body
    C. The tension in the string
    D. Centripetal acceleration