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Vectors

Authored by Suman Gautam

Physics

11th - 12th Grade

CCSS covered

Used 18+ times

Vectors
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22 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt


 If P Q = P×QIf\ \overrightarrow{P\ }\cdot\overrightarrow{Q\ }=\ \left|\overrightarrow{P}\times\overrightarrow{Q}\right|  , the angle between  P  and  Q\overrightarrow{P\ }\ and\ \ \overrightarrow{Q}  is

0

 π2\frac{\pi}{2}  

 π4\frac{\pi}{4}  

 π\pi  

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

A person walks first 10 km north and 20 km east, then the resultant vector is

22.36km

22.46 km

22.36

20.36 km

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

A vector A of magnitude  5 35\ \sqrt{3}  units , another vector B of  magnitude 10 units are inclined at an angle of  30°30\degree  . The magnitude of vector product of the two vectors is  

 53 units5\sqrt{3}\ units  

10 units

 25 3 units25\ \sqrt{3}\ units  

75 units

4.

FILL IN THE BLANK QUESTION

5 mins • 1 pt

 AtAt what angle do the two forces  A + B and A  B\overrightarrow{A}\ +\ \overrightarrow{B}\ and\ \overrightarrow{A}\ -\ \overrightarrow{B}  act so that their resultant is  3 A2+B2\sqrt{3\ A^2+B^2}  ?

5.

FILL IN THE BLANK QUESTION

3 mins • 1 pt

A velocity of 20 m/s has its X-component 12m/s. What is its y- component?

6.

FILL IN THE BLANK QUESTION

3 mins • 1 pt


What is the angle between  (A +B) and A × B  \left(\overrightarrow{A}\ +\overrightarrow{B}\right)\ and\ \overrightarrow{A}\ \times\ \overrightarrow{B\ }\   ?

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Commutative law is obeyed by

Scalar Product of vectors

Vector Product of vectors

Both of them

none of them

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