physics mcqs for entry test, physics mcqs class 10

PHYSICS MCQS

 

physics mcqs for entry test, physics mcqs class 10, physics mcqs class 9, physics mcqs for nts preparation, physics mcqs for navy test, physics mcqs for mdcat, physics mcqs for entry test with answers, physics mcq answer, physics all mcqs, physics mcqs class 11, physics mcqs class 12, physics mcqs for paf, physics mcqs for lecturer test, physics mcqs grade 12, physics mcq hindi, physics mcq for hssc exam, physics mcq important, physics mcq jkssb, physics mcqs for job test, physics ke mcq, physics mcqs laws of motion, physics lecturer mcqs, physics mcqs mdcat, physics mcqs nts, mdcat physics mcqs  ,physics mcqs for entry test, physics mcqs class 10, physics mcqs class 9, physics mcqs for nts preparation, physics mcqs for navy test, physics mcqs for mdcat, physics mcqs for entry test with answers, physics mcq answer, physics all mcqs, physics mcqs class 11, physics mcqs class 12, physics mcqs for paf, physics mcqs for lecturer test, physics mcqs grade 12, physics mcq hindi, physics mcq for hssc exam, physics mcq important, physics mcq jkssb, physics mcqs for job test, physics ke mcq, physics mcqs laws of motion, physics lecturer mcqs, physics mcqs mdcat, physics mcqs nts, mdcat physics mcqs,  physics mcqs online physics most important mcqs physics mcqs nts physics entry test mcqs physics mcqs with explanation physics mcqs with answers pdf for competitive exams physics mcq and answers physics mcq in hindi physics mcq in hindi pdf

 
 
            
               ANS KEY IS AT THE END

NEWTON’S LAWS OF MOTION GRAVITATION, WORK AND ENERGY
 

1. Initial velocity of a body moving with uniform acceleration of 5 m/s2, is 10m/s. What will be the distance covered in 10 sec?

(a) 150 m    (b) 250 m    (c) 350 m

2. Newton’s first law of motion supplies the definition of

(a) distance                     (b) velocity
(c) acceleration              (d) force
 

3. The action and reaction forces referred in Newton’s third law of motion

(a) must act upon the same body (b) must act upon different bodies
(c) must be equal in magnitude but need not have the same line of action
(d) need not to be equal in magnitude but must have the same line of action

 
4. If a person can thrown ball to a minimum height h (vertically up) then the maximum distance up to which he can throw the ball is

(a) h           (b) 2h
(c) 3h         (d) 4h

5. When a particle is thrown up, it will have

(a) different speed at the same height during ascent and during descent

(b) same speed at the same heights during ascent and during descent
(c) same speed at different heights during ascent and during descent
(d) different speed at different height during ascent and during descent

 

6. A carpet can be cleaned by beating. This is in accordance with Newton’s

(a) first law          (b) second law
(c) third law        (d) none of the above

7. A force of 100 N acts on a body of 5 kg for 10 seconds. What will be the velocity of the body?

(a) 2 m/s                      (b) 20 m/s
(c) 200 m/s                 (d) 2000 m/s

 
8. Which law of motion explains the phenomenon of swimming?

(a) first            (b) second
(c) third          (d) none of these

9. What acceleration will a force of 5N produce in a mass of 5 kg?

(a) 1 m/s2           (b) 25 m/s2
(c) 1 m/s             (d) 25 m/s

10. A fielder caught a ball of 150 gm moving at a rate of 20 m/s. If the catching process was completed in 0.1 sec, the force of the blow exerted by ball on the hands was

(a) 30,000 N        (b) 30,000 N
(c) 300 N              (d) 30 N

11. When a body accelerates,

(a) its direction always changes   

(b) its mass always
(c) its velocity always changes     

(d) it falls towards the earth

12. A rope attached to a post in the ground is pulled horizontally with a force of 100 N. The pole pulls back with a force of

(a) 25 N           (b) 50 N
(c) 100 N         (d) 200 N
 

 
13. If a vehicle is to gain momentum, it must

(a) lose weight                    (b) move slowly
(c) lose inertia                   (d) accelerate
 

 
14. If the initial velocity, the distance travelled and the time elapsed are known, which equation would you use to find acceleration?

(a) vf = vi + at                (b)  V_f2-   V_i2    =2as
(c) s = v_it +1/2 at2       (d) s = vt

15. Which of the following will not accelerate?
 

(a) the moon in its orbit    

(b) a tennis ball rebounding from

ground 
(c) a stone in free fall           (d) a car in which the engine thrust is equal to the friction
 

 
16. A body is moving with a velocity of V1 m/s and after to seconds, the velocity changes to V2 m/s. The average acceleration of body will be

 
 
a)  V₁-V₂/t m/s2      b)   V_2- V₁/t m/s2                 

(c)  V₁ + V₂  m/s2         (d) V1 + V2 =m/s2
 

17. A car accelerates for 105 at 6 m/s2. What is its final speed if its initial was 4 m/s?

(a) 30 m/s       (b) 60 m/s
(c) 34 m/s       (d) 64 m/s

 
18. A car is travelling due east at 40 miles/hr turns south and maintains the same speed. What is the change in velocity of car?

(a) 40 miles/hr E – s               

(b) 40xunderroot2  miles/hr E - s

(c) 80 miles/hr E – s    

(d) none
 

 
19.A force of 6N acts on a body of mass 1 kg during which the body attains a velocity of 30 m/s. The time for which the force acts on a body is

 
(a) 26 seconds           (b) 5 seconds
(c) 6 seconds             (d) 2 seconds

 
20. Which of the following is not necessary for work to be done?

 
(a) a constant speed  

(b) an appliedforce                                    

(c) a displacement 

(d) force component along the displacement

 
21. A body at rest may have

(a) speed             (b) momentum
(c) energy           (d) velocity

22. What is the weight of 10 kg block?

(a) 10 N               (b) 9.8 N
(c) 98 N               (d) 0.98 N

23. A fixed pulley is employed to

(a) same work              

(b) change the direction of force
(c) do more work with  same force but without using  pulling
(d) have mechanical advantage  greater than one
 

 
24. Which is the suitable method to

 decrease friction?

(a) lubrication                (b) polishing
(c) ball and roller bearings         

(d) all of the above

 
25. The static friction is

(a) always equal to dynamic friction                                                           

(b) always less than dynamic friction

(c) always greater than dynamic friction    

(d) sometimes greater and sometimes less than the dynamic friction

 
26. The force of friction that comes into action after the motion has started is  known as

(a) static friction            (b) dynamic friction
(c) friction only              (d) limiting friction

 
27. A body in equilibrium may not have

(a) velocity                (b) momentum
(c) acceleration        (d) kinetic energy (K.E.)

28. A body is termed as perfectly elastic if

(a) it can move freely     (b) its surface is perfectly smooth
(c) it is not affected by external force
(d) it recovers its original shape when the deforming force is removed

 
29. If two bodies undergo a collision that is not perfectly elastic, then

(a) K.E. is conserved but momentum is not   
(b) momentum is conserved but K.E. is not
(c) neither K.E nor momentum is conserved
(d) both K.E. and momentum are conserved
 

 
30. A negative acceleration does not   necessarily imply

(a) a decreasing speed         

(b) an increasing distance
(c) an increasing speed     

(d) a decreasing distance
 
 

 
31. If the average velocity of an object is zero in some time interval, the displacement of the object for that interval will be

(a) infinite               (b) zero
(c) increasing          (d) decreasing

 
32. A car is moving at constant speed toward the east, on a free way. Its acceleration is

(a) zero                (b) positive
(c) negative         (d) infinite

33. The average velocity depends on the

(a) displacement vector and not on   the path covered
(b) both displacement vector and on the path travelled
(c) neither displacement vector nor the path travelled
(d) none of these
 

34. The magnitude of the instantaneous velocity is called the

(a) displacement      (b) speed
(c) acceleration        (d) length
 

35. The path of a projectile is a

(a) triangle        (b) circle     (c) ellipse

(d) parabola

36. The horizontal range (R) of a projectile is maximum when projectile’s angle is
 

(a) 90°                             (b) 75°
(c) 60°                         (d) 45°
 
 

 
37. In the absence of non-zero net force, the center of mass of a body either remains at rest, or moves at a constant speed in a straight line. This is a statement of Newton’s
 

(a) first law of motion         (b) second law of motion
(c) third law of motion        (d) none of the above
 

 
38. The acceleration of an object is proportional to the net force acting on   it and inversely proportional to its mass. This is a statement Newton’s

(a) first law of motion      

(b) second law of motion
(c) third law of motion    

(d) all of the above

 
39. The total force applied on a body is equal to the time derivative of a linear momentum of the body. This is Newton’s

(a) Ist law of motion         

(b) 2nd law of motion
(c) 3rd law of motion       

(d) none of the above

 
40. Which law of motion is sometimes referred to as the action-reaction law?

(a) 1st law of motion              

(b) 2nd law of motion
(c) 3rd law of motion         

(d) none of the above
 

 
 
 
 
 

 
 
 
ANSWERS
1. c  2. d 3. b 4. b
5. b 6. a 7. c 8. c
9. a 10. d 11. c 12. c
13. d 14. c 15. d 16. b
17. d 18. d 19. b 20. a
21. c 22. c 23. b 24. d
25. d 26. d 27. c 28. d
29. b 30. a 31. b 32. a
33. a 34. b 35. d 36. d
37. a 38. b 39. b 40. c




NEXT PAGE>>

FOR MORE VIDEOS ON PHYSICS MCQS SUBSCRIBE TO MY CHANNEL ,CLCICK HERE