Vector Quiz

Descrição

This quiz will test you on the definition of a vector and perform the operations of a vector, which are addition subtraction, multiplication (dot production & scalar multiplication), and division.
Vanessa Komperda
Quiz por Vanessa Komperda, atualizado more than 1 year ago
Vanessa Komperda
Criado por Vanessa Komperda quase 8 anos atrás
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Resumo de Recurso

Questão 1

Questão
Is 5 m/s a vector.
Responda
  • True
  • False

Questão 2

Questão
What is the addition of the vectors V = (-2 ,5) and W = (7 , 9).
Responda
  • VW = (5, 14)
  • VW = ( 9 ,14)
  • VW = ( 5, 4)
  • VW = (9 ,5)

Questão 3

Questão
What happens when we multiply vector U = ( -3, 4) by scalar 5?
Responda
  • U = ( 5, ,5)
  • U = (-3,4)
  • U = ( -15, 20)
  • U = ( 15, 20)

Questão 4

Questão
What is the subtraction of vectors U = (-7, -3) and W = ( 5, -2)?
Responda
  • UW = ( -2, -5)
  • UW = ( 12, 1)
  • UW = (2, 5)
  • UW = (-12, -1)

Questão 5

Questão
What is the magnitude of the vector ( -1, -6)?
Responda
  • sqrt (36 ) = 6.
  • sqrt (37 )
  • sqrt ( -7)
  • sqrt ( 7)

Questão 6

Questão
If a = (-1, 2) and b = (-2,-3), and if c = -a + 3b, what is vector c?
Responda
  • c = (-3, 1)
  • c = ( 3, 1)
  • c = ( -1, 5)
  • c = (-5, 11)

Questão 7

Questão
If v ⃗ = (-2, 5), what is the magnitude and direction of v? Hint: For part 2, remember which quadrant the vector lies in.
Responda
  • Magnitude is √29 , and direction is 261.8°
  • Magnitude is √7 , and direction is 61.8°
  • Magnitude is √3 , and direction is 21.3°
  • Magnitude is √27 , and direction is 61.8°

Questão 8

Questão
Is -2 inches a vector?
Responda
  • True
  • False

Questão 9

Questão
When two vectors are perpendicular (right angles) to each other the dot product is zero?
Responda
  • True
  • False

Questão 10

Questão
Find the dot product of vectors v and w. Use the following diagram to answer the question. Round your answer to the nearest hundredth.
Responda
  • 25.384°
  • 20.433°
  • 28.432°
  • 22.273°

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