
Understanding Unit Tangent Vectors

Interactive Video
•
Mathematics
•
10th - 12th Grade
•
Hard

Olivia Brooks
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary role of a unit tangent vector in relation to a curve?
It indicates the direction of the curve at a point.
It defines the curvature of the curve.
It measures the length of the curve.
It determines the color of the curve.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is the unit tangent vector of a curve determined?
By calculating the area under the curve.
By finding the midpoint of the curve.
By taking the derivative of the vector-valued function and normalizing it.
By integrating the vector-valued function.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What condition must be met for the derivative of a vector-valued function to define a unit tangent vector?
The derivative must be a unit vector.
The derivative must not be the zero vector.
The derivative must be perpendicular to the curve.
The derivative must be a constant vector.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the plane curve example, what are the components of the unit tangent vector at t = 1?
2/3 and 3/4
1/3 and 2/3
3/5 and 4/5
1/2 and 1/2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the point of tangency for the plane curve when t = 1?
(0, 0)
(3, 4)
(1, 2)
(2, 3)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the space curve example, what is the angle corresponding to t = π/6?
90 degrees
30 degrees
60 degrees
45 degrees
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the x component of the unit tangent vector for the space curve at t = π/6?
√3/2
√3/19
1/2
2√3/19
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