Bloodstain Analysis and Trigonometry Concepts

Bloodstain Analysis and Trigonometry Concepts

Assessment

Interactive Video

Mathematics, Science, Physics

9th - 12th Grade

Hard

Created by

Patricia Brown

FREE Resource

Samantha Turner, a high school junior, explains how mathematics, particularly trigonometry, is applied in forensic science to determine the area of origin for bloodstains. The video covers the tools needed, the types of bloodstains, and the step-by-step process of using trigonometry to find the area of origin. Samantha emphasizes the importance of math in real-world applications and encourages hands-on learning.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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

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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