21 + Interview Questions in GENERAL QA IN MOMENTUM Page 1 InterviewSolution

1.	Momentum possessed by spinning objects is called A. linear momentum B. angular momentum C. normal momentum D. degrees' momentum
Answer» B. angular momentum

Discussion

2.	In a perfectly inelastic collision, kinetic energy A. totally disappears B. is increased C. is decreased D. is unchanged
Answer» A. totally disappears

Discussion

3.	If a trolley collides with a stationary trolley of double mass, then they move off with A. half of the original velocity B. one third of original velocity C. double the original velocity D. triple the original velocity
Answer» B. one third of original velocity

Discussion

4.	Mass and velocity are combined to give A. angular momentum B. equilibrium C. acceleration D. linear momentum
Answer» D. linear momentum

Discussion

5.	Resultant force acting on object and rate of change of linear momentum are A. inversely related B. not related at all C. directly related D. directly proportional
Answer» C. directly related

Discussion

6.	Total momentum within a closed system is A. increasing B. decreasing C. zero D. constant
Answer» The Correct option is D. constant

Discussion

7.	What is the momentum
Answer» It refers to the quantity of motion that an object has. A sports team that is on the move has the momentum. If an object is in motion (on the move) then it has momentum. Momentum can be defined as "mass in motion." ... Momentum depends upon the variables mass and velocity.

Discussion

8.	In fireworks the momentum provided by chemicals is directed A. upwards B. left side C. right side D. downwards
Answer» D. downwards

Discussion

9.	Momentum of two objects moving with same speed but in opposite direction upon collision is A. increased B. decreased C. is zero D. is infinite
Answer» The Correct option is C. is zero

Discussion

10.	Interaction that causes an object's momentum to change is A. velocity B. acceleration C. power D. force
Answer» The Correct option is D. force

Discussion

11.	Direction of momentum is direction of object's A. mass B. acceleration C. velocity D. frictional force
Answer» C. velocity.

Discussion

12.	Speed of Earth when a rock of mass 60 kg falling towards Earth with speed of 20 m s-1 is A. 2.4 × 10-22 m s-1 B. 3.5 × 10-33 m s-1 C. −2.0 × 10-22 m s-1 D. −3 × 1034 m s-1
Answer» C. −2.0 × 10^-22 m s^-1

Discussion

13.	Force exerted by bat on ball if it strikes a ball of mass 0.16 kg initially hits bat with speed of 25 m s-1 with time impact of 0.003 s is A. 145 N B. 1333.33 N C. 1456.7 N D. 6543 N
Answer» B. 1333.33 N

Discussion

14.	Momentum of electron having mass 9.1 × 10-31 kg and velocity 2.0 × 107 is A. 1.91 × 10-23 B. 2.34 × 10-23 C. 3.11 × 10-19 D. 7.88 × 10-34
Answer» A. 1.91 × 10^-23

Discussion

15.	To replace a ball with another ball by collision, a snooker player must consider the condition that A. the collision must be head on B. The moving ball must not be given any spin C. both A and B D. no conditions required
Answer» C. both A and B

Discussion

16.	If the total kinetic energy and momentum of a system becomes zero after collision, then the collision is A. elastic B. inelastic C. conserved D. not conserved
Answer» B. inelastic

Discussion

17.	An object travelling with constant velocity has A. constant momentum B. zero momentum C. increasing momentum D. decreasing momentum
Answer» A. constant momentum

Discussion

18.	In a springy collision, if the fast moving trolley collides with a slow one, then the fast one will bounce back at speed of A. slow one B. less than slow one C. more than slow one D. with the same speed as before
Answer» The Correct option is A. slow one

Discussion

19.	A white ball of mass 1.0 kg moving with initial speed u = 0.5 m s -1 collides with stationary red ball of same mass, they move forward making angle of 90° between their paths. Their speed is A. 1 m s-1 B. 0.354 m s-1 C. 2 m s-1 D. 3 m s-1
Answer» B. 0.354 m s^-1 1 st equation vertical momentum (sin A sin B) 2 nd equation horizontal momentum (cos A cos B) A+B=90 degrees v=(under square 2)/4~ 1.4/4= 0.354 Answer: B

Discussion

20.	In a perfectly elastic collision, the relative speed of approach and relative speed of separation are A. equal B. in equal C. zero D. infinite
Answer» The Correct option is A. equal

Discussion

21.	In a perfectly elastic collision, momentum and energy are A. not conserved B. conserved C. becomes zero after collision D. equal before collision
Answer» B. conserved

Discussion

Explore topic-wise InterviewSolutions in .

Momentum possessed by spinning objects is called A. linear momentum B. angular momentum C. normal momentum D. degrees' momentum

In a perfectly inelastic collision, kinetic energy A. totally disappears B. is increased C. is decreased D. is unchanged

If a trolley collides with a stationary trolley of double mass, then they move off with A. half of the original velocity B. one third of original velocity C. double the original velocity D. triple the original velocity

Mass and velocity are combined to give A. angular momentum B. equilibrium C. acceleration D. linear momentum

Resultant force acting on object and rate of change of linear momentum are A. inversely related B. not related at all C. directly related D. directly proportional

Total momentum within a closed system is A. increasing B. decreasing C. zero D. constant

What is the momentum

In fireworks the momentum provided by chemicals is directed A. upwards B. left side C. right side D. downwards

Momentum of two objects moving with same speed but in opposite direction upon collision is A. increased B. decreased C. is zero D. is infinite

Interaction that causes an object's momentum to change is A. velocity B. acceleration C. power D. force

Direction of momentum is direction of object's A. mass B. acceleration C. velocity D. frictional force

Speed of Earth when a rock of mass 60 kg falling towards Earth with speed of 20 m s-1 is A. 2.4 × 10-22 m s-1 B. 3.5 × 10-33 m s-1 C. −2.0 × 10-22 m s-1 D. −3 × 1034 m s-1

Force exerted by bat on ball if it strikes a ball of mass 0.16 kg initially hits bat with speed of 25 m s-1 with time impact of 0.003 s is A. 145 N B. 1333.33 N C. 1456.7 N D. 6543 N

Momentum of electron having mass 9.1 × 10-31 kg and velocity 2.0 × 107 is A. 1.91 × 10-23 B. 2.34 × 10-23 C. 3.11 × 10-19 D. 7.88 × 10-34

To replace a ball with another ball by collision, a snooker player must consider the condition that A. the collision must be head on B. The moving ball must not be given any spin C. both A and B D. no conditions required

If the total kinetic energy and momentum of a system becomes zero after collision, then the collision is A. elastic B. inelastic C. conserved D. not conserved

An object travelling with constant velocity has A. constant momentum B. zero momentum C. increasing momentum D. decreasing momentum

In a springy collision, if the fast moving trolley collides with a slow one, then the fast one will bounce back at speed of A. slow one B. less than slow one C. more than slow one D. with the same speed as before

A white ball of mass 1.0 kg moving with initial speed u = 0.5 m s -1 collides with stationary red ball of same mass, they move forward making angle of 90° between their paths. Their speed is A. 1 m s-1 B. 0.354 m s-1 C. 2 m s-1 D. 3 m s-1

In a perfectly elastic collision, the relative speed of approach and relative speed of separation are A. equal B. in equal C. zero D. infinite

In a perfectly elastic collision, momentum and energy are A. not conserved B. conserved C. becomes zero after collision D. equal before collision