ECAT Pre Computer Science Chapter 2 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 2 Vectors and Equilibrium

Try The MCQ's Test For ECAT Physics Chapter 2 Vectors and Equilibrium

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ECAT Physics Chapter 2 Vectors and Equilibrium

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Question # 1

The driection of vector si space is specified by:

Question # 2

If two forces of magnitudes 3.5 and 2.5 N act on a body such that the angle between the forces is zero, then magnitude of the resultant will be:

Question # 3

If a vector lies in second quadrant, than Bxand Byare:

Question # 4

A vector of magnitude 5 N is added to a vector of magnitude 8 N while the orientations are changeable. Range of their possible sum will be very from:

Question # 5

A vector of magnitude 5 N is added to a vector of magnitude 8 N while the orientations are changeable. Range of their possible sum will be very from:

Question # 6

Tick the correct answer:

Question # 7

Two forces each of 10 N act on a body, if the force are inclined at 30° and 60° respectively with x-axis, then x-component of their resultant is:

Question # 8

An vector of 10 N makes an angle of 45° with x-axis. Angle between its rectangular components with be:

Question # 9

Torque is also called:

Question # 10

The direction of a vector in space requires:

Question # 11

All trigonometric functions (sine, cosine, tangent etc) are positive in:

Question # 12

Cosine of an angle is positive in:

Question # 13

Scalar product is also called:

Question # 14

The resultant of two velocities 3 m/sec and 400 cm/sec making an angle 90° with each other is:

Question # 15

The magnitude of resultant of three vectors is 3. Its x-component is one, y-component is two, then its z-component is:

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ECAT Physics Chapter 2 Important MCQ's

Sr.# Question Answer
1 When a vector is multiplied by a negative number, its direction:
A. Remains the same
B. Changes
C. Changes by 180°
D. None of these
2 The perpendicular distance from the axis of rotation to the line of action of force is called:
A. Moment arm
B. Moment of a force
C. Torque
D. Non of these
3 Two forces each of 10 N act on a body, if the force are inclined at 30° and 60° respectively with x-axis, then x-component of their resultant is:
A. 20 N
B. 13.66 N
C. 10 N
D. 8.66 N
4 The vector in space has:
A. One component
B. Two components
C. Three components
D. None of these
5 A vector which has magnitude 'one' is called:
A. Resultant vector
B. A unit vector
C. Position vector
D. None of these
6 For measuring the angle between two vectors graphically, we join:
A. Tails of both the vectors
B. Tail of one vector with the head of other
C. Heads of both the vectors
D. None of these
7 The vector is space has:
A. One Component
B. Two Compnents
C. Three Components
D. Non of these
8 Which of the following is scalar quantity?
A. Electric potential
B. Velocity
C. Momentum
D. Force
9 The magnitude of resultant of three vectors is 3. Its x-component is one, y-component is two, then its z-component is:
A. 0
B. 1
C. 2
D. 3
10 A person starts his journey from a point 0, travels 4 Km SW, then 4 Km NW, and finally 4 Km north-east. At what distance is he now from point 0?
A. 0 Km
B. 4 Km
C. 8 Km
D. 12 Km

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