During long jump, athlete runs before taking the jump. By doing so he__________________?

Related Mcqs:

1. A body is falling freely under gravity. How much distance it falls during an interval of time between 1st and 2nd seconds of its motion, taking g=10 ?

   A. 15 m
   B. 20 m
   C. 5 m
   D. 25 m

2. The span of the broad jump depends upon_______________?

   A. Mass of the jumper
   B. Height of jump
   C. Angle of projection
   D. None

3. The Capacity of doing work is called_________?

   A. Work
   B. Energy
   C. Power
   D. Momentum

   Submitted by: Rajesh

4. Taking off rocket can be explained by __________________?

   A. 1st law of motion
   B. 2nd law of motion
   C. Law of conservation of momentum
   D. law of conservation of energy

5. Materials that undergo plastic deformation before breaking are called __________________?

   A. Brittle
   B. Ductile
   C. Amorphous
   D. Polymers

6. Average distance covered by alpha particles in the air before its ionizing power ceases is called its_________________?

   A. Trajectory
   B. Range
   C. Firing level
   D. Limit

7. One kilowatt hour is the amount of energy delivered during _______________?

   A. one second
   B. one day
   C. one minute
   D. one hour

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. During an encounter with an atom alpha particle knocks out ______________?

    A. Protons
    B. Electrons
    C. Neutrons
    D. Nothing