Who discovered the inverse square law for gravity ?

Related Mcqs:

1. Frequency is the inverse of __________?

   A. Velocity
   B. Stress
   C. Time Period
   D. Gravity

   Submitted by: Chakar Hussain Shar

2. Which law of motion is also called law of inertia ?

   A. 1st law
   B. 2nd law
   C. 3rd law
   D. all 1st, 2nd and 3rd laws

3. 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

4. The average acceleration caused by gravity per second is____________?

   A. 22 feet
   B. 32 feet
   C. 52 feet
   D. 42 feet

   Submitted by: Yalmaz Fahim

5. The value of acceleration due to gravity is minimum on which of these planets?

   A. Mars
   B. Jupiter
   C. Mercury
   D. Neptune

   Submitted by: Abid Hussain

6. Neutron was discovered by: _________?

   A. Chadwick
   B. Rutherford
   C. Neil Bohr
   D. Einstein

   Submitted by: Rizwan Ayub Saadi

7. In an angular motion, Newton’s second law of motion is_____________?

   A. F=ma
   B. F=τp/It
   C. Στ = I α
   D. All above

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. Radioactive decay obeys which one of the following law ?

   A. N=Noe-λt
   B. N=Noeλt
   C. N=Noe-λt/2
   D. No=N(1+eλt)

10. Newton’s Third Law of Motion?

    A. every action there is an equal and opposite reaction.
    B. attraction or repulsion between two charges
    C. volume of a given mass of gas increases or decreases
    D. temperature remaining constant, volume of a given mass of a gas varies inversely

    Submitted by: Mehran ali Sheikh