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

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

Question # 2

Which of the following is scalar quantity?

Question # 3

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

Question # 4

Two vectors having different magnitudes:

Question # 5

If x-component of a vector is -3 N and y-component is 3 N, then angle of resultant vector will x-axis is:

Question # 6

The change of order of vectors in a dot product of two vectors:

Question # 7

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

Question # 8

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 # 9

Cosine of an angle is positive in:

Question # 10

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

Question # 11

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 # 12

For measuring the angle between two vectors graphically, we join:

Question # 13

The magnitude of the resultant of two forces may be increased by:

Question # 14

Two forces each of the magnitude F act perpendicular to each other. The angle made by the resultant force with the horizontal will be:

Question # 15

The vector is space has:

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ECAT Physics Chapter 2 Important MCQ's

Sr.# Question Answer
1 Scalar product is also called:
A. Cross product
B. Dot product
C. Product scalar
D.
Product vector
2 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
3 An vector of 10 N makes an angle of 45° with x-axis. Angle between its rectangular components with be:
A. 45°
B. 90°
C. 135°
D. Zero
4 Choose the set of physical quantities, which have both numerical and directional properties:
A. Velocity, mass
B. Speed, acceleration
C. acceleration weight
D. Distance, force
5 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
6 Tick the correct answer:
A. Torque is a vector quantity
B. Torque is the turning effect of a force
C. Torque is called moment of a force
D. All of above
7 The driection of vector si space is specified by:
A.
One angle
B. Two angles
C. Three angles
D. None of above
8 Unit vector is used to specify:
A. Magnitude of a vector
B. Dimensions of a vector
C. Direction of a vector
D. Position of a vector
9 If the vector 5 N lies along with x-axis, then its component along y-axis will be:
A. Zero
B. 5 N
C. 7 N
D. 10 N
10 When the magnitude of two component vectors are equal to that of their resultant, then the angle between the components is:
A. 60°
B. 90°
C. 120°
D. 150°

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