ECAT Pre Computer Science Chapter 2 MCQ Test With Answer

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

Tick the correct answer:

Question # 2

A force of 5 n is acting Y-axis. Its component along X-axis is:

Question # 3

When a vector is multiplied by a negative number, its direction:

Question # 4

Which of the following is scalar quantity?

Question # 5

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

Question # 6

The sum of two or more vectors is equal to a single vector which is called:

Question # 7

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?

Question # 8

The direction of a vector in space requires:

Question # 9

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 # 10

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

Question # 11

By convention, torques producing clockwise rotation are taken as:

Question # 12

When the magnitude of two component vectors are equal to that of their resultant, then the angle between the components is:

Question # 13

Two vectors having different magnitudes:

Question # 14

Two vectors to be combined have magnitudes of 60 N and 35 N. Pick the possible answer:

Question # 15

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

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ECAT Physics Chapter 2 Important MCQ's

Sr.# Question Answer
1 The resultant of two velocities 3 m/sec and 400 cm/sec making an angle 90° with each other is:
A. 20 m/sec
B. 5 m/sec
C. 3 m.sec
D. None of these
2 If a vector lies in second quadrant, than Bxand Byare:
A. -,+
B. +,-
C. +,+
D. -,-
3 Two forces of 10 N and 8 N are applied simultaneously to a body. the maximum value of their resultant is:
A. 2 N
B. - 2 N
C. 18 N
D. 36 N
4 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
5 Two vectors having different magnitudes:
A. Have their directions opposite
B. May have their resultant zero
C. Cannot have their resultant zero
D. None of these
6 Which of the following is scalar quantity?
A. Electric potential
B. Velocity
C. Momentum
D. Force
7 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
8 All trigonometric functions (since, cosine tangent etc. ) are positive in:
A. 1st Quadrant
B. 2nd Quadrant
C. 3rd Quadrant
D. 4th Quadrant
9 All trigonometric functions (sine, cosine, tangent etc) are positive in:
A. 1st quadrant
B. 2nd quadrant
C. 3rd quadrant
D. 4th quadrant
10 The direction of a vector in space requires:
A. X-axis
B. X and Y-axes
C. XYZ axes
D. Y and Z-axes

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