Physics MCQs

Physics

Vectors and Equilibrium


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#1

The resultant of two vectors of magnitude 2 and 3  unit is 1 unit the angle between them is 

A)  180º

B)  90º

C)  60º

D)  45º

Answer:   A
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#2

Two forces of 6N and 8N can produce resultant of 

A)  0 N

B)  1 N

C)  10 N

D)  18 N

Answer:   C
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#3

Which one is the vector out of following?

A)  Current

B)  Electrostatic Potential

C)  Charge

D)  Moment of force

Answer:   D
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#4

The product of unit vector with magnitude is 

A)  direction

B)  Vector

C)  magnitude

D) All

Answer:   B
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#5

A force of 10 N making an angle of 30º with Y-axis, its horizontal component will be

A)  8.66 N

B)  5 N

C)  7.07 N

D)  None

Answer:   B
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#6

Which of the following is a scalar quantity?

A) Displacement

B) Velocity

C) Force

D) Work

Answer:   D
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#7

Which of the following is a vector quantity?

A) Mass

B) Density

C) Momentum

D) Speed

Answer:   C
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#8

What is the magnitude of the unit vector $\hat{i}$?

A) 0

B) 1

C) 2

D) Undefined

Answer:   B
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