Difference between revisions of "Shoot Garfield"
From UO Physics Demonstration Catalog
(Created page with "{{NewDemo|subject=Mechanics|topic=Kinematics|file1=garfield.jpeg}} A blast of pressurized air shoots a dart towards the target. As it leaves the barrel it passes through a photogate which cuts power to an electromagnet holding the target. The dart hits the target as it falls showing that both have fallen at the same rate. This is also available on video tape and can be shown in slow motion. (Garfield has been substituted for the monkey to cut down controversy.) '''Loca...") |
(Updated explanation using the Pasco projectile Launcher.) |
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{{NewDemo|subject=Mechanics|topic=Kinematics|file1=garfield.jpeg}} | {{NewDemo|subject=Mechanics|topic=Kinematics|file1=garfield.jpeg}} | ||
A | A spring loaded projectile launcher is pointed at a target or Garfield hanging from a height h above the floor or table. (You can imagine Garfield is in a tree and someone want to get his attention and hit him with a ball). Garfield decided that as soon as the ball leaves the launcher he hill let go and fall and the ball will go over his head. The ball is launched towards the target, and as it leaves it passes through a detector that tells Garfield to let go (which actually cuts power to an electromagnet holding the target or Garfield.). The ball hits the target as it falls showing that both fall at the same rate. This is also available on video tape and can be shown in slow motion. (This used to be called the Monkey and the Hunter, Later days, Garfield was substituted since cartoon and comic characters survive slapstick encounters, Or we now have a target to avoid any controversy.) | ||
If The Oregon Ducks are playing a sport that week, like football, you can tape a picture of the opposing teams mascot and say something like The Oregon Duck wants to use a ball launcher and send the other team's Mascot a present. To avoid being hit, the Mascot jumps down, but gets hit, because they did not take a Physics course. | |||
'''Location:''' | '''Location:''' | ||
* | * [[File:Shoot the Target.mp4|thumb]]Dr 20 | ||
Latest revision as of 10:20, 10 October 2024
Return to Kinematics
Description:
A spring loaded projectile launcher is pointed at a target or Garfield hanging from a height h above the floor or table. (You can imagine Garfield is in a tree and someone want to get his attention and hit him with a ball). Garfield decided that as soon as the ball leaves the launcher he hill let go and fall and the ball will go over his head. The ball is launched towards the target, and as it leaves it passes through a detector that tells Garfield to let go (which actually cuts power to an electromagnet holding the target or Garfield.). The ball hits the target as it falls showing that both fall at the same rate. This is also available on video tape and can be shown in slow motion. (This used to be called the Monkey and the Hunter, Later days, Garfield was substituted since cartoon and comic characters survive slapstick encounters, Or we now have a target to avoid any controversy.)
If The Oregon Ducks are playing a sport that week, like football, you can tape a picture of the opposing teams mascot and say something like The Oregon Duck wants to use a ball launcher and send the other team's Mascot a present. To avoid being hit, the Mascot jumps down, but gets hit, because they did not take a Physics course.
Location:
- Dr 20
