ECAT Physics MCQs Chapter Wise with Answer Key 2020 Ch-3

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ECAT Physics MCQs for Entry Test 

A collection of ECAT Physics MCQs Chapter Wise from past papers of entry test. All mcqs are chapter wise and with answer keys. These mcqs have been collected from UET Taxila Ecat past papers of year 2019-20.

ECAT Physics MCQs Chapter Wise 

21. SI unit of impulse is 
(a) kg m sec -1  (b) newton sec
(c) newton          (d) kg m sec -2
22. Total change in momentum of a moving body is equal to its
(a) K.E (b) impulse (c) force (d) inertia 
23. The ballistic missile are useful only for 
(a) long range (b) short range
(c) intermediate range (d) zero range
24. The mass of an object is the quantitative measure of its 
(a) momentum (b) energy
(c) acceleration (d) inertia
25. The velocity of a projectile is maximum
(a) at the highest point
(b) at point of launching and just before striking the ground
(c) at half of the height
(d) after striking the ground  
26. Impulse can be defined as 

27. The product of force and time is called 
(a) impulse (b) power
(c) torque (d) velocity
28. SI  unit of linear momentum is 

30. The disc used by a woman athlete has a mass of 1 kg, its weight in newton is 
(a) 98N (b) 100N
(c) 80N (d) 9.8N
31. Motion of a body along y-axis is 
(a) one dimensional
(b) two dimensional
(c) three dimensional
(d) four dimensional
Answer Keys:
21. a 22. b 23. b 24. d 25. b 26. b 27. a 28. d 29. b* 30. d

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