Sunday 26 October 2014

Chapter 10. Gravitation | Physics | MCQ - Multiple Choice Questions | CBSE Class 9th

Question 1. The value of acceleration due to gravity on the surface of the earth at sea level is

(a) 4.9 m/s2
(b) 6 m/s2
(c) 8 m/s2
(d) 9.8 m/s2

Answer. (d) 9.8 m/s2

Saturday 25 October 2014

Chapter 9 Force And Laws Of Motion | Physics | MCQs | Class 9th | - Multiple Choice Questions

Question 1. An object of mass 6 kg is sliding on  horizontal surface, with a uniform velocity of 8 m/ s . Assuming force of friction offered by the surface to be zero,  The force required to maintain the motion of object  with the same uniform velocity is

(a) 0 Newton
(b) 2 Newtons
(c) 8 Newtons
(d) 32 Newtons

Answer. (a) 0 Newton

Chapter 8 Motion | Physics | MCQs | Class 9th | - Multiple Choice Questions

Question 1. A worker covers a distance of 40 km from his house to his place of work, and 10 km towards his house back. Then the displacement covered by the worker in the whole trip is

(a) zero km
(b) 10 km
(c) 30 km
(d) 50 km

Answer. (c) 30 km