Chapter 4 Vectors and Scalars

Which of the following dimensions belongs in the set {force, velocity, acceleration, magnetic field}?

• mass
• speed
• displacement
• temperature

Which of the following is always positive?

• vector
• scalar
• direction
• magnitude

Tags

CCSS.HSN.VM.A.1

Which of the following map directions is equivalent to the Cartesian 180°?

• 000T
• 360T
• 090T
• 270T

Which is another way to write 0°?

• 000T
• 090T
• 45° north of west
• 425°

Which of the following may you do to a vector without changing it?

• Add a nonzero vector to a vector.
• Multiply a vector by a scalar other than 1.
• Rotate a vector through any angle other than 360 degrees.
• Move the vector without changing its orientation.

A canoe heads east at 9.00 km/h in a river that flows south at 4.00 km/h. What is the canoe's speed relative to the earth? Use an order-of-magnitude estimation to choose the correct answer.

• 5.00 km/h
•   9.85 km/h
• 13.0 km/h
• 15.0 km/h

What does the commutative property of vectors say?

• Vectors can be inverted.
• Vectors can be transported.
• Vectors can be added in any order.
• Vectors can not be added in any order.

The resultant is the arithmetic sum of the magnitudes only if

• the vectors are in opposite directions.
• one vector is perpendicular to the other.
• the magnitudes of the vectors are the same.
• the vectors are in the same direction.

The difference of vectors A and B can be constructed by placing

• the tail of A to the tip of B.
• the tail of A to the tail of B.
• the tip of A to the tip of B.
• the tip of A to the tail of B

Which is not necessarily true about similar triangles?

• Their corresponding sides are congruent.
• All angles are acute angles.
• Angles are not involved in determining similarity.
• Corresponding sides are proportional