VECTORI -

VECTORI -

9th Grade

9 Qs

quiz-placeholder

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VECTORI -

VECTORI -

Assessment

Quiz

Mathematics

9th Grade

Practice Problem

Hard

Created by

Bianca Crut

Used 10+ times

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9 questions

Show all answers

1.

FILL IN THE BLANK QUESTION

30 sec • 1 pt

2 vectori care au aceeasi directie sunt vectori....

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Media Image

Vectorul

 AF\overrightarrow{AF}  se poate scrie ca

 BA+FB\overrightarrow{BA}+\overrightarrow{FB}  

 AB+BF\overrightarrow{AB}+\overrightarrow{BF}  

 AB+BC\overrightarrow{AB}+\overrightarrow{BC}  

 AB+FB\overrightarrow{AB}+\overrightarrow{FB}  

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

In triunghiul ABC, M este mijlocul laturii AB si N este mijlocul laturii AC. Sa se determine x din relatia:

 NM=xBC\overrightarrow{NM}=x\cdot\overrightarrow{BC}  

2

 12\frac{1}{2}  

 12-\frac{1}{2}  

-2

4.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Adunarea vectorilor se realizeaza prin

regula poligonului

regula trapezului

regula paralelogramului

regula unghiului

5.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Vectorul

 OA\overrightarrow{OA}  este egal cu 

 OC\overrightarrow{OC}  

 12CA\frac{1}{2}\overrightarrow{CA}  

 12AC\frac{1}{2}\overrightarrow{AC}  

 OB\overrightarrow{OB}  

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

În reperul xOy se dau punctele A(-1,3), B(3,5). Atunci coordonatele vectorului

 AB\overrightarrow{AB}  sunt:

(-4, 8)

(2, -2)

(4, 2)

(2,8)

8.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Dacă A(2,3), B(-5,2) atunci mijlocul M al segmentului [AB] are coordonatele

(3,5)\left(-3,5\right)

(7,5)\left(7,5\right)

(3,1)\left(-3,1\right)

(32,52)\left(-\frac{3}{2},\frac{5}{2}\right)

9.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Fiind date punctele A(4,3), B(6,7) atunci AB are lungimea

252\sqrt{5}

10210\sqrt{2}

1010

66