A ball is thrown towards the earth and bounce back. During this process:

Related Mcqs:

1. 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

2. A stone is thrown upward from the top of a 59.4m high cliff with an upward velocity component of 19.6m/s how long is the stone in the air?

   A. 4.00 s
   B. 5.00 s
   C. 6.00 s
   D. 7.00 s

   Submitted by: Maryum

3. A Stone thrown from the top of a tall building follows a path that is:

   A. Circular
   B. Made of two straight line segments
   C. Hyperbolic
   D. Parabolic

   Submitted by: Shuaib Uddin

4. In bringing an electron towards the second electron, the electrostatic potential energy of the system

   A. Decreases
   B. increases
   C. remains the same
   D. becomes zero

   Submitted by: Tauseef Ali

5. In the shadow of a ball the central portion appears bright that happens due to_________________?

   A. Interference
   B. Diffraction
   C. Polarization
   D. Refraction

6. In cricket when a bowler produce reverse swing the ball will move towards______________?

   A.The shinning side of the ball
   B. Rough side
   C. The seam of the ball
   D. Goes straight

7. A million electron are added to a pith ball. Its charge is________?

   A. – 1.6 × 10^–12 coulomb
   B. – 1.6 × 10^–13 coulomb
   C. – 1.6 × 10 ^–18 coulomb
   D. – 1.6 × 10 coulomb

   Submitted by: Tauseef Ali

8. A wire obeys Hooks law is of length 11 when it is in equilibrium under a tension F1. Its length becomes 12 when the tension is increased to F2. The energy stored in the wire during this process is____________________?

   A. (F1+F2) (121+122)
   B. (F1+F2) (122-112)
   C. (F1+F2) (12-11)
   D. (F1+F2) (12-11)

9. During the fission process a large amount of______________?

   A. Heat energy is released
   B. Nuclear energy is released
   C. Chemical energy is released
   D. Light energy is released

10. The escape velocity form the earth surface in km S-1 is____________________?

    A. 4.2 km S-1
    B. 7.5 km S-1
    C. 9.5 km S-1
    D. 1.1 km S-1