Scalar and Vector - Quiz 2

Which of the following quantities are vectors?

• speed, velocity, acceleration
• velocity, acceleration, force
• force, acceleration, mass
• length, mass, time

Which of these is not a vector quantity? 

• displacement 
• time
• velocity 
• acceleration

Which statement describes a vector?

• It has magnitude but no direction
• It has direction but no magnitude
• It has both direction and magnitude
• It has constant magnitude but no
   direction

Greatness of size, strength, or importance

• distance

• magnitude

• scalar

• Vectors

Tags

NGSS.HS-PS2-1

Which of the following could never be negative?

• a distance
• a velocity
• a displacement
• a vector

The students are arguing over the differences between speed and velocity. One student says, “Speed is a vector because it describes how fast an object traveling. Velocity is a scalar because it tells how fast and what direction an object is traveling.” Which of the following statements is correct?

• The students' understanding of all four terms (speed, velocity, scalar, and vector) is correct.

• The students' understanding of all four terms (speed, velocity, scalar, and vector) is incorrect.

• The students' understanding of speed and velocity is incorrect but their

  understanding of scalar and vector is correct.

• The students’ understanding of speed and velocity is correct but their understanding of scalar and vector is incorrect.

How do scalars and vectors differ?

• scalers have units

• scalers have direction

• vectors have units

• vectors have direction

A scalar is a magnitude _____.

• With direction.
• Without direction.

The vector that results from adding a South and East vector points

• SW

• NW

• SE

• EW

7. For winter, a duck flies 10 m/s due to south against a gust of wind with a speed 2.5 m/s. What is the resultant velocity of the duck?

• 7.5 m/s, north

• 12.5 m/s, south

• 7.5 m/s, south

• 12.5 m/s, north

Tags

NGSS.HS-PS2-1