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Ballistics and Firearms Warm-up

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Last updated 11 months ago
27 questions
Monday 3/3/2025
1
1
Tuesday 3/4/2025
1.5
1.5
Wednesday 3/5/2025
1
1
Thursday 3/6/2025
Monday 3/10/2025
1
Tuesday 3/11/2025
Friday 3/14/2025
Monday 3/17/2025
1
1
Tuesday 3/17/2025
1
1
Wednesday 3/18/2025
1
1
Question 1
1.
Drag and drop the terms onto the image to label the schematic of a bullet.
Other Answer Choices:
lead core
propellant
primer
extracting groove
copper jacket
brass cartridge case
Question 2
2.

There are 4 types of firearms. Drag and drop each description into its appropriate category.

  • a firearm that propels pellets through air, spring compression, or a carbon dioxide cartridge
  • firearms with longer barrels that possess greater range and accuracy
  • firearms designed to be held in one hand, easy to carry, and easy to conceal
  • a 6-cylinder firearm that must be reloaded by hand and does not eject a spent shell
Question 3
3.

Question 4
4.

Categorize the bullets as left twist or right twist.

  • LEFT
  • RIGHT
Question 5
5.

"9 mm Luger" is the ________ imprinted on the cartridge.

Question 6
6.
Label the cartridge casings as centerfire or rimfire.
Other Answer Choices:
rimfire
centerfire
1
Question 7
7.
groove or land?
__________
1
Question 8
8.
groove or land?
__________
1
Question 9
9.
groove or land?
__________
Question 10
10.
Calculate the angle of impact of the bloodstains in the "show your work section."

Round all answers to the nearest degree.

A) _______°
B) _______ °
C) _______ °
D) _______ °
E) _______ °
F) _______ °
1
1
1
1
1
1
1
1
1
Question 19
19.

Question 20
20.

Summarize Locard's Exchange Principle and discuss how it applies to gunshot residue and GSR testing.

Question 21
21.

Explain why GSR cannot be used to connect a suspect to a weapon used in commission of a crime.

Question 22
22.

What is a diphenylamine test and what are 2 substances that can trigger a positive test result?

Question 23
23.

Question 24
24.

2
Question 25
25.
In this example, a projectile is fired from a BB rifle at a velocity (speed) of 600 ft/sec.

How many seconds after the projectile is fired will it take to reach the target?
_______ seconds

Calculate the vertical distance dropped by the projectile while it is airborne.
_______ feet
1
Question 26
26.
Question 27
27.

Calculate the height of the shooter given the above scenario.
_______ feet (round to the nearest whole number)
similar to rifles, but the inside of the barrels are smooth, and the cartridges contains small spherical pellets called "shot"
handguns
rifles
shotguns
Air guns
Select all of the following that are true about the following firearm:
It is a hand gun.
It is a long gun.
It fires tiny spheres known as "shot."
The barrel has grooves and lands.
It is a rifle.
It is a shotgun.
It is a revolver.
Question 11
11.
_______
Question 12
12.
_______
Question 13
13.
_______
Question 14
14.
_______
Question 15
15.
_______
Question 16
16.
_______
Question 17
17.
_______
Question 18
18.
_______°
Which of the following elements are commonly found in ammunition primers?
nitrates
antimony
lead
water
potassium
Examine the following bullet and note its dimensions:
- 6 lands/grooves
- cut rifling
- groove width = 0.072 inches
- land width = 0.147 inches

Check the "show your work" section and select all of the possible firearm manufacturers from the list below:
COLT
DGFM (FMAP)
AUTO ORDINANCE
NORINCO
STAR
BROWNING
FOX
SPRINGFIELD ARMORY
SIGARMS
GABILONDO
MILITARY ARMS CORPS
Examine the following bullet and note its dimensions:
- 6 lands/grooves
- cut rifling
- groove width = 0.058 - 0.071 inches
- land width = 0.161 - 0.165 inches

Check the "show your work" section and select all of the possible firearm manufacturers from the list below:
STAR
AUTO ORDINANCE
FOX
MILITARY ARMS CORPS
COLT
GABILONDO
NORINCO
SIGARMS
BROWNING
DGFM (FMAP)
SPRINGFIELD ARMORY
2 more BB rifles are test fired with the following velocities:

BB1(original): 600 ft/sec
BB2: 700 ft/sec
BB3: 800 ft/sec

Which of the BB rifles' bullets will fall the most during the initial 0.2 seconds?

__________