Question 1

Why must paint collected from a vehicle involved in a hit-and-run accident be taken from the area of the car suspected of being in contact with the victim?

Accepted Answer

(should include points such as):
The col

Question 2

Which property imparts paint with its most distinctive forensic characteristics?

Accepted Answer

A) Color-layer sequence 
B) Color 
C) Gloss 
D) Texture 
A) Color-layer sequence 
B) Color 
C) Gloss 
D) Texture

Question 3

Soil is collected as ________ to preserve a record of the buildup of several layers of soil from different locations over time.

Accepted Answer

The answer of Soil is collected as ________ to preserve...

Question 4

Which of the following statements is FALSE?

Accepted Answer

A) Protons and neutron comprise the nucleus of an atom. 
B) The proton has a charge of +1. 
C) The neutron has no electrical charge. 
D) The electron and proton have the same mass. 
A) Protons and neutron comprise the nucleus of an atom. 
B) The proton has a charge of +1. 
C) The neutron has no electrical charge. 
D) The electron and proton have the same mass.

Question 5

An element is selective in the frequency of light it will absorb. This selectivity is due to its:

Accepted Answer

A) Number of neutrons. 
B) Proton cloud. 
C) Atomic mass. 
D) Electron energy levels. 
A) Number of neutrons. 
B) Proton cloud. 
C) Atomic mass. 
D) Electron energy levels.

Question 6

A(n)________ spectrum shows a series of lines separated by black areas in which each line represents a definite wavelength of frequency.

Accepted Answer

The answer of A(n)________ spectrum shows a series of lines...

Question 7

Describe how you would conduct a visual examination of soil. What distinguishing characteristics would you look for?

Accepted Answer

(should include points such as):
Most so

Question 8

Which would be LEAST useful in identifying a mineral crystal?

Accepted Answer

A) Size 
B) Color 
C) Geometric shape 
D) Refractive index 
A) Size 
B) Color 
C) Geometric shape 
D) Refractive index

Question 9

The emission spectrograph is used to determine the:

Accepted Answer

A) Mass of a substance. 
B) Weight of a substance. 
C) Crystalline structure of a substance. 
D) Elemental composition of a substance. 
A) Mass of a substance. 
B) Weight of a substance. 
C) Crystalline structure of a substance. 
D) Elemental composition of a substance.

Question 10

Which coat represents the "eye appeal"?

Accepted Answer

A) Electrocoat primer 
B) Primer surface 
C) Basecoat 
D) Clearcoat 
A) Electrocoat primer 
B) Primer surface 
C) Basecoat 
D) Clearcoat

Question 11

An atom has a net zero electrical charge, which indicates that it contains the same number of protons and electrons.

Accepted Answer

A) True 
 B)False

Question 12

An electron moves to a ________-energy orbital when it absorbs energy, such as heat or light.

Accepted Answer

The answer of An electron moves to a ________-energy orbital...

Question 13

Neutrons carry no charge.

Accepted Answer

A) True 
 B)False

Question 14

When comparing paint chips under a microscope, a criminalist looks for color, surface texture, and ________ layer sequence.

Accepted Answer

The answer of When comparing paint chips under a microscope,...

Question 15

What is the logical first step in soil analysis?

Accepted Answer

A) Examination for presence of debris under low-power magnification 
B) Comparison of dried soil sample for color and texture 
C) Use of the density-gradient tube technique 
D) Examination of minerals and rocks under high-power magnification 
A) Examination for presence of debris under low-power magnification 
B) Comparison of dried soil sample for color and texture 
C) Use of the density-gradient tube technique 
D) Examination of minerals and rocks under high-power magnification

Question 16

A(n)________ is a naturally occurring crystalline solid that can be identified by its physical properties.

Accepted Answer

The answer of A(n)________ is a naturally occurring crystalline solid...

Question 17

The polymeric makeup of paint binders can readily be compared by:

Accepted Answer

A) Emission spectroscopy. 
B) Thin-layer chromatography. 
C) Microscopy. 
D) Pyrolysis gas chromatography. 
A) Emission spectroscopy. 
B) Thin-layer chromatography. 
C) Microscopy. 
D) Pyrolysis gas chromatography.

Question 18

In neutron activation analysis, an element is identified by measuring the energy of emitting:

Accepted Answer

A) Protons. 
B) Electrons. 
C) Neutrons. 
D) Gamma rays. 
A) Protons. 
B) Electrons. 
C) Neutrons. 
D) Gamma rays.

Question 19

What type of evidence would be expected to have trace elements?

Accepted Answer

A) Glass and metal objects 
B) Paint and bullet fragments 
C) Soil and gun primer particles 
D) All of the above 
A) Glass and metal objects 
B) Paint and bullet fragments 
C) Soil and gun primer particles 
D) All of the above

Question 20

Emission spectroscopy measures the frequency of light emitted by an atom when one of its electrons moves to a higher orbital.

Accepted Answer

A) True 
 B)False

Why must paint collected from a vehicle involved in a hit-and-run accident be taken from the area of the car suspected of being in contact with the victim?

Which property imparts paint with its most distinctive forensic characteristics?

Soil is collected as ________ to preserve a record of the buildup of several layers of soil from different locations over time.

Which of the following statements is FALSE?

An element is selective in the frequency of light it will absorb. This selectivity is due to its:

A(n)________ spectrum shows a series of lines separated by black areas in which each line represents a definite wavelength of frequency.

Describe how you would conduct a visual examination of soil. What distinguishing characteristics would you look for?

Which would be LEAST useful in identifying a mineral crystal?

The emission spectrograph is used to determine the:

Which coat represents the "eye appeal"?

An atom has a net zero electrical charge, which indicates that it contains the same number of protons and electrons.

An electron moves to a ________-energy orbital when it absorbs energy, such as heat or light.

Neutrons carry no charge.

When comparing paint chips under a microscope, a criminalist looks for color, surface texture, and ________ layer sequence.

What is the logical first step in soil analysis?

A(n)________ is a naturally occurring crystalline solid that can be identified by its physical properties.

The polymeric makeup of paint binders can readily be compared by:

In neutron activation analysis, an element is identified by measuring the energy of emitting:

What type of evidence would be expected to have trace elements?

Emission spectroscopy measures the frequency of light emitted by an atom when one of its electrons moves to a higher orbital.

Introduction

The Crime Scene

Physical Evidence

Crime Scene Reconstruction: Blood Stain Pattern Analysis

Death Investigation

Fingerprints

Forensic Biometrics

The Microscope

Firearms, Tool Marks, and Other Impressions

Matter, Light, and Glass Examination

Hairs and Fibers

Drugs

Forensic Toxicology

Forensic Serology

DNA: The Indispensable Forensic Science Tool

Forensic Aspects of Fire and Explosion Investigation

Document Examination

Computer Forensics

Mobile Device Forensics

Filters

Exam 14: Metals, Paint, and Soil

Why must paint collected from a vehicle involved in a hit-and-run accident be taken from the area of the car suspected of being in contact with the victim?

Which property imparts paint with its most distinctive forensic characteristics?

Soil is collected as ________ to preserve a record of the buildup of several layers of soil from different locations over time.

Which of the following statements is FALSE?

An element is selective in the frequency of light it will absorb. This selectivity is due to its:

A(n)________ spectrum shows a series of lines separated by black areas in which each line represents a definite wavelength of frequency.

Describe how you would conduct a visual examination of soil. What distinguishing characteristics would you look for?

Which would be LEAST useful in identifying a mineral crystal?

The emission spectrograph is used to determine the:

Which coat represents the "eye appeal"?

An atom has a net zero electrical charge, which indicates that it contains the same number of protons and electrons.

An electron moves to a ________-energy orbital when it absorbs energy, such as heat or light.

Neutrons carry no charge.

When comparing paint chips under a microscope, a criminalist looks for color, surface texture, and ________ layer sequence.

What is the logical first step in soil analysis?

A(n)________ is a naturally occurring crystalline solid that can be identified by its physical properties.

The polymeric makeup of paint binders can readily be compared by:

In neutron activation analysis, an element is identified by measuring the energy of emitting:

What type of evidence would be expected to have trace elements?

Emission spectroscopy measures the frequency of light emitted by an atom when one of its electrons moves to a higher orbital.

Introduction

The Crime Scene

Physical Evidence

Crime Scene Reconstruction: Blood Stain Pattern Analysis

Death Investigation

Fingerprints

Forensic Biometrics

The Microscope

Firearms, Tool Marks, and Other Impressions

Matter, Light, and Glass Examination

Hairs and Fibers

Drugs

Forensic Toxicology

Forensic Serology

DNA: The Indispensable Forensic Science Tool

Forensic Aspects of Fire and Explosion Investigation

Document Examination

Computer Forensics

Mobile Device Forensics

Filters