Penny and Feather

PIRA DCS: 1C-20.10

Equipment

• Penny and Feather tube
• Vaccum pump or line

Directions

• Open air valve on tube.
• Show that penny and feather fall at different rates due to air resistance
• Evacuate tube and close the valve
• Show that penny and feather now fall at the same speed

- Physics & Astronomy Demonstrations -

   demos@physics.neiu.edu