What is the primary role of crime scene investigators as discussed in the video?

Bloodstain Analysis and Trigonometry Concepts

Interactive Video
•
Mathematics, Science, Physics
•
9th - 12th Grade
•
Hard

Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
To interview witnesses
To determine the cause of death
To analyze the crime scene and determine what happened
To solve mathematical equations
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is NOT a material needed for the bloodstain analysis activity?
Paint
Microscope
Ruler
Calculator
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main difference between passive and spattered bloodstains?
Both occur without external force
Both occur with external force
Passive stains occur without external force, spattered with
Passive stains occur with external force, spattered without
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step in finding the area of convergence?
Use a digital calibrator
Calculate the angle of impact
Draw lines through the long axis of elliptical stains
Measure the width of the stain
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it important to measure the length and width of a stain accurately?
To identify the suspect
To find the type of blood
To calculate the angle of impact
To determine the color of the stain
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you calculate the angle of impact for a bloodstain?
By taking the arc sine of the width divided by the length
By subtracting the width from the length
By multiplying the width by the length
By dividing the length by the width
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What trigonometric function is used to find the length of the opposite side in the area of origin calculation?
Secant
Tangent
Cosine
Sine
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