11th class Physics chapter 2 online mcq test with answers for ICS part 1 Physics chapter 2(Vectors and Equilibrium)

Question # 1

The acceleration at the top of a trajectory of projectile is.

g
A
zero
B
Maximum
C
Minimum
D

Question # 2

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

4 N
A
7 N
B
1 N
C
6 N
D

Question # 3

Motion of projectile is.

One dimensional
A
Two dimensional
B
Three dimensional
C
None of the above
D

Question # 4

SI Unit of impulse in.

kg m s-2
A
Ns
B
N m
C
N m2
D

Question # 5

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

Elastic collision
A
Inelastic ollision
B
Both elasic and inclastic
C
Norther elastic nor inclastic
D

Question # 6

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

Rocket
A
Satellite
B
Projectile
C
Space ship
D

Question # 7

The angle at which dot product becomes equal to cross product.

45^o
A
65^o
B
75^o
C
35^o
D

Question # 8

As rocket moves upwrd during its journey, then its acceleration goes on.

Increasing
A
Decreasing
B
Remains same
C
It moves with uniform velocity
D

Question # 9

The range of projectile is same for two angles which are mutually.

Perpendicular
A
Complementary
B
Supplementary
C
270^o
D

Question # 10

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

4000 m/s
A
400 m/s
B
40000 cm/s
C
400 cm/s
D

Question # 11

The velocity of the projectile is maximum.

At half of height
A
At highest point
B
Just before striking the ground and at the point of projection
C
At one fourth of maximum height
D

Question # 12

The Fs of force F of magnitude 30 N making an angle of 60^o with x -axis

7 N
A
15 N
B
10 N
C
5 N
D

Question # 13

For what angle of projection projectile has maximum horizontal range

45^o
A
90^o
B
0^o
C
30^o
D

Question # 14

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

250 ms-1
A
Zero
B
500 ms -1
C
1000 ms-1
D

Question # 15

Elastic collision involoves

Loss of energy
A
Gain of energy
B
No gain, no loss of energy
C
No relation between energy and elastic collision
D

Question # 16

In projectiel motion horizontal rane depends upon.

Angle of projection
A
Initial velocity
B
Both initial velocity and angle of projection
C
Final Velocity
D

Question # 17

The cross product of vector A with itself is equal to.

A
A
1
B
2 A
C
Null Vector
D

Sr.#	Question	Answer
1	SI Unit of impulse in.	A. kg m s-2 B. Ns C. N m D. N m2
2	In projectiel motion horizontal rane depends upon.	A. Angle of projection B. Initial velocity C. Both initial velocity and angle of projection D. Final Velocity
3	The velocity of the projectile is maximum.	A. At half of height B. At highest point C. Just before striking the ground and at the point of projection D. At one fourth of maximum height
4	Rocket ejects the burnt gasses at a speed of over (consuming fuel at rate of 10000kg/s)	A. 4000 m/s B. 400 m/s C. 40000 cm/s D. 400 cm/s
5	The resultant of two forece 3 N and 4 N actign parallel to each other is.	A. 4 N B. 7 N C. 1 N D. 6 N
6	The cross product of vector A with itself is equal to.	A. A B. 1 C. 2 A D. Null Vector
7	Motion of projectile is.	A. One dimensional B. Two dimensional C. Three dimensional D. None of the above
8	Before launch of any rocket the mass of fuel of the rocket is about	A. 60% of rocket mass B. 50% of rocket mass C. 40% of rocket mass D. 80 % of rocket mass
9	A body thrown upward making certain angel with the horizontal and moving freely under the action of gravity is called.	A. Rocket B. Satellite C. Projectile D. Space ship
10	Maximum number of rectangular components of a vector in 2- dimenstion may be	A. One B. Two C. Three D. Infinite

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The acceleration at the top of a trajectory of projectile is.

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

Motion of projectile is.

SI Unit of impulse in.

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

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

The angle at which dot product becomes equal to cross product.

As rocket moves upwrd during its journey, then its acceleration goes on.

The range of projectile is same for two angles which are mutually.

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

The velocity of the projectile is maximum.

The Fs of force F of magnitude 30 N making an angle of 60o with x -axis

For what angle of projection projectile has maximum horizontal range

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

Elastic collision involoves

In projectiel motion horizontal rane depends upon.

The cross product of vector A with itself is equal to.

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The Fs of force F of magnitude 30 N making an angle of 60^o with x -axis

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