1. . A mass of 20 kg is at rest. Its momentum is
(A) Zero
(B) 200 kg m/sec
(C) 196 N·sec
(D) 20 kg m/sec
2. . As we go away from the surface of earth, the value of g
(A) Decreases
(B) Increases
(C) Becomes zero
(D) Remain constant
3. . How many feet are in a yard.
(A) One
(B) Three
(C) Two
(D) Four
4. . S.I is also called
(A) M.K.S. System
(B) C.G.S. System
(C) F.P.S. System
(D) System International
5. . Two forces of 5N and 3N are acting on a body making an angle of 180° with each other. Their resultant force is
(A) 6 N
(B) 15 N
(C) 2 N
(D) 35 N
6. . Motion of molecules of a body at absolute zero is
(A) Zero
(B) Minimum
(C) Maximum
(D) Random
7. . Newton is the unit of
(A) work
(B) force
(C) energy
(D) torque
8. . Force per unit area is called
(A) density
(B) viscosity
(C) energy
(D) pressure
9. . The weight of a body is 9.8 N. Its mass is
(A) 9.8 kg
(B) 1 kg
(C) 98 kg
(D) 10 kg
10. . A 5 kg mass is falling freely. Its weight will be
(A) 5 N
(B) Zero
(C) 49 N
(D) 19.6 N