Physics Fsc Part 1 Chapter 2 Online Test With Answers

Physics Fsc Part 1 Chapter 2 Online Test

Sr. # Questions Answers Choice
1

A collision in whcih both K.E. and momentum are conseverd.

 <p>Elastic collision</p> <p>Inelastic ollision</p> <p>Both elasic and inclastic</p> <p>Norther elastic nor inclastic</p>
2

Rocket ejects the burnt gasses at a speed of over (consuming fuel at rate of 10000kg/s)

 <p>4000 m/s</p> <p>400 m/s</p> <p>40000 cm/s</p> <p>400 cm/s</p>
3

The motion of the rocket is in accordance with law of conservaion of 

 <p>Linear momentum&nbsp;</p> <p>Energy</p> <p>Mass</p> <p>Angular momentum</p>
4

Before launch of any rocket the mass of fuel of the rocket is about

 <p>60% of rocket mass</p> <p>50% of rocket mass</p> <p>40% of rocket mass</p> <p>80 % of rocket mass</p>
5

Dimensions of impulse are  similar to dimensions of.

 <p>Work&nbsp;</p> <p>Torque</p> <p>Force</p> <p>Momentum</p>
6

The SI unit of momentum is.

 <p>Kg ms&nbsp;</p> <p>Kg ms -2</p> <p>kg m2 s</p> <p>kg 2 m-1</p>
7

In projectiel motion horizontal rane depends upon.

 <p>Angle of projection</p> <p>Initial velocity</p> <p>Both initial velocity and angle of projection</p> <p>Final Velocity</p>
8

The horizontal componet is velocity of projectile moving  with initial velocity of 500 ms -1 at angle of 60o with x-axis is equal to

 <p>250 ms-1</p> <p>Zero</p> <p>500 ms -1</p> <p>1000 ms-1</p>
9

The velocity of the projectile is maximum.

 <p>At half of height</p> <p>At highest point</p> <p>Just before striking the ground and &nbsp;at the point of projection</p> <p>At one fourth of maximum height</p>
10

Motion of projectile is.

 <p>One dimensional</p> <p>Two dimensional</p> <p>Three dimensional</p> <p>None of the above</p>
11

When the projectile the highest point of trajectory the verticla component of velocity is.

 <p>Small</p> <p>maximum</p> <p>Zero</p> <p>V Cos</p>
12

During the projectile motion the horizontal component of velocity

 <p>Changes with time</p> <p>Becomes zero</p> <p>Does not changes</p> <p>Increase with time</p>
13

The trajectory of projectile is.

 <p>Straight line</p> <p>Parabola</p> <p>Hyperbola</p> <p>Circle</p>
14

A body thrown upward making certain angel with the horizontal and moving freely under the action of gravity is called.

 <p>Rocket</p> <p>Satellite</p> <p>Projectile</p> <p>Space ship</p>
15

For what angle of projection projectile has maximum horizontal range

 <p>45<sup>o</sup></p> <p>90<sup>o</sup></p> <p>0<sup>o</sup></p> <p>30<sup>o</sup></p>
16

The resultant of two forece 3 N and 4 N actign parallel to each other is.

 <p>4 N</p> <p>7 N</p> <p>1 N</p> <p>6 N</p>
17

The magnituede of cross-proecut and dot product of two vectors are equal, the angle betwene the vectors is.

 <p>45<sup>o</sup></p> <p>Zero</p> <p>180<sup>o</sup></p> <p>90<sup>o</sup></p>
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