ECAT Pre General Science Physics Chapter 2 Vectors and Equilibrium Online Test With Answers

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ECAT Pre General Science Physics Chapter 2 Vectors and Equilibrium Online Test

Sr. # Questions Answers Choice
1 A vector which has magnitude 'one' is called: Resultant vector A unit vector Position vector None of these
2 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? 0 Km 4 Km 8 Km 12 Km
3 Two vectors to be combined have magnitudes of 60 N and 35 N. Pick the possible answer: 100 N 70 N 20 N Zero
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: Zero to 3 N 1 N to 13 N 13 N to 3 N None of these
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: Zero to 3 N 1 N to 13 N 13 N to 3 N None of these
6 If the vector 5 N lies along with x-axis, then its component along y-axis will be: Zero 5 N 7 N 10 N
7 The rectangular components of a vector are equal in magnitude when the vector makes and angle _______with their x-component: 0<span style="font-size: 10.5pt; line-height: 107%; font-family: Arial, sans-serif; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">°</span> 30<span style="font-size: 10.5pt; line-height: 107%; font-family: Arial, sans-serif; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">°</span> 45<span style="font-size: 10.5pt; line-height: 107%; font-family: Arial, sans-serif; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">°</span> 60<span style="font-size: 10.5pt; line-height: 107%; font-family: Arial, sans-serif; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">°</span>
8 When the magnitude of two component vectors are equal to that of their resultant, then the angle between the components is: 60<span style="font-size: 10.5pt; line-height: 107%; font-family: Arial, sans-serif; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">°</span> 90<span style="font-size: 10.5pt; line-height: 107%; font-family: Arial, sans-serif; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">°</span> 120<span style="font-size: 10.5pt; line-height: 107%; font-family: Arial, sans-serif; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">°</span> 150<span style="font-size: 10.5pt; line-height: 107%; font-family: Arial, sans-serif; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">°</span>
9 If a vector lies in second quadrant, than Bxand Byare: -,+ +,- +,+ -,-
10 Parallel vectors of same magnitudes: Are equal Are unequal When added give the some equal to zero Give the answer equal to zero
11 The direction of vector in space is specified by: One angle Two angles Three angles None of these
12 The direction of a vector in space requires: X-axis X and Y-axes XYZ axes Y and Z-axes
13 Choose the set of physical quantities, which have both numerical and directional properties: Velocity, mass Speed, acceleration acceleration weight Distance, force
14 The perpendicular distance from the axis of rotation to the line of action of force is called: Moment arm Moment of a force Torque Non of these
15 Torque is also called: Momentum Linear inertia Moment of a force Mass
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