PASCO Monkey and Hunter, 1D60.30

Location:

Cabinet: [:MechanicsCabinet:Mechanic (ME)]
Bay: [:MechanicsCabinetBayA5:(A5)]
Shelf: #1

Description:

A projectile launcher is carefully aimed at a stuffed monkey which is held up by an electromagnet. The electromagnet is coupled to the launcher via the PASCO interface. The instant the projectile is launched the monkey is dropped. Since the monkey and the projectile are falling at the same rate, the projectile will hit the monkey.

Equipment	Location	ID Number

Control interface	ME, Bay A1, Shelf #1
Power cord and telephone line	ME, Bay A1, Shelf #1
Projectile launcher	ME, Bay A1, Shelf #1
Monkey	ME, Bay A1, Shelf #1
Photogate	ME, Bay A1, Shelf#1
Support rod with attached electromagnet	Near door to 2241

Important Setup Notes:

This demonstration will require practice.
Do not connect monkey to magnet until ready for use - metal attachment tends to become magnetized over periods of 30 minutes which inhibits the dropping mechanism.

Setup:

Mount the support rod to the lecture bench.
Mount the launcher on opposite end of lecture bench with clamps.
Connect the power cord and telephone wire.
Connect the photogate to the launcher and connect its respective wires.
Alignment - look through the bottom of the launcher (not down the launching end!). There is a cross-hair - use this to aim at the monkey. After gun is aligned, tighten set screws.
Make sure the triggering system is not yet armed - the red light should be off. Otherwise, the photogate could trigger a premature drop of the monkey.
Attach the monkey to the electromagnet. A ladder will most likely be needed.
Load the projectile into the launcher. Use the black rod (~28 cm in length) to push the projectile into the barrel to the desired spring setting. This is demonstrated in the video linked below. There are three such settings. The spring will click each time a new setting is reached.

Cautions, Warnings, or Safety Concerns:

DO NOT look down the barrel of the projectile launcher - a spontaneous launch could take your eye!
Take care to not aim the projectile launcher at or near the audience; also keep in mind the possible post-contact trajectories of the projectile.

Demonstration:

When ready to fire the projectile, arm the triggering system - the red light will turn on.
Pull the release cord to fire.

attachment:LauncherSetup01-250.jpg	attachment:LauncherWRod03-250.jpg	attachment:DownBarrel04-250.jpg	attachment:Launcher02-250.jpg
attachment:SupportRodSetup01-250.jpg	attachment:Electromagnet01-250.jpg	attachment:SupportRod01-250.jpg	attachment:Telephonewire01-250.jpg
attachment:PASCOInterface01-250.jpg	attachment:PASCOInterface03-250.jpg	attachment:PASCOInterface02-250.jpg	attachment:AllParts01-250.jpg
attachment:Photogate03-250.jpg	attachment:Balls01-250.jpg	attachment:Sights01-250.jpg	attachment:Monkey01-250.jpg
attachment:Scale02-250.jpg

Videos:

[http://youtu.be/DIebxpYWL-g PASCO Monkey and Hunter, 1D60.30 ]
[https://www.youtube.com/user/LectureDemostrations/videos?view=1 Lecture Demonstration's Youtube Channel]

References:

[http://www.pasco.com/physhigh/shoot-the-target.cfm PASCO item page]
[http://sprott.physics.wisc.edu/demobook/intro.htm Clinton Sprott]

[:Instructional:Home]

-  ⇤ ← Revision 19 as of 2012-05-30 21:13:36 → 
  Size: 2995
  Editor: srnarf
  Comment:
+   ← Revision 21 as of 2012-05-31 20:29:19 → ⇥
  Size: 3917
  Editor: srnarf
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
 Line 15:
-A projectile launcher is carefully aimed at a stuffed monkey which is held up by an electromagnet. The electromagnet is coupled to the launcher via the PASCO interface. The instant the projectile is launched the monkey is dropped. If everything is set up correctly, the projectile should hit the falling monkey.
+A projectile launcher is carefully aimed at a stuffed monkey which is held up by an electromagnet. The electromagnet is coupled to the launcher via the PASCO interface. The instant the projectile is launched the monkey is dropped. Since the monkey and the projectile are falling at the same rate, the projectile will hit the monkey.
 Line 35:
-. Place the launcher on opposite end of lecture bench and connect the power cord and telephone wire.
 3. Alignment - look through the bottom of the launcher (not down the launching end!). There is a cross-hair - use this to aim at the monkey. After gun is aligned, tighten set screws.
+. Mount the launcher on opposite end of lecture bench with clamps.
 3. Connect the power cord and telephone wire.
 4. Connect the photogate to the launcher and connect its respective wires.
 5. Alignment - look through the bottom of the launcher (not down the launching end!). There is a cross-hair - use this to aim at the monkey. After gun is aligned, tighten set screws.
 6. Make sure the triggering system is not yet armed - the red light should be off. Otherwise, the photogate could trigger a premature drop of the monkey.
 7. Attach the monkey to the electromagnet. A ladder will most likely be needed. 
 8. Load the projectile into the launcher. Use the black rod (~28 cm in length) to push the projectile into the barrel to the desired spring setting. This is demonstrated in the video linked below. There are three such settings. The spring will click each time a new setting is reached.
-Line 40:
+Line 45:
+ * Take care to not aim the projectile launcher at or near the audience; also keep in mind the possible post-contact trajectories of the projectile.
-Line 45:
+Line 51:
-When ready to fire the projectile, pull the release cord to fire.
+. When ready to fire the projectile, arm the triggering system - the red light will turn on.
 2. Pull the release cord to fire.
-Line 61:
+Line 68:
+ * [http://sprott.physics.wisc.edu/demobook/intro.htm Clinton Sprott]

fw: Diff for "PASCO_Monkey_Hunter"

PASCO Monkey and Hunter, 1D60.30