### Free Fall Tower

UPDATED HTML5

Recreate Galileo's famous experiment by dropping objects off the Tower of Pisa. You can drop ping pong balls, golf balls, soccer balls or watermelons. Objects can be dropped in air or no air, with or without a parachute. The speed of each object is shown on a speedometer and a graph.

#### LEARNING OBJECTIVES:

• Compare how quickly different objects fall in air.
• Discover that in a vacuum, all objects fall at the same rate.
• Observe that objects accelerate as they fall.
• Interpret a graph of speed vs. time.
• Explore and compare the effects of air resistance on each test object.
• Find the terminal velocity of objects falling through air, with or without a parachute.

#### VOCABULARY:

• accelerate, air resistance, free fall, gravity, terminal velocity, vacuum

### User Lesson Materials

No user lesson materials have been submitted for this Gizmo.

### User Recommendations (2):

• ##### I used this to prove to my skeptics about acceleration due to gravity. Loved it for alternative students.

Recommended For:  Earth/Space Science

### Critical Acclaim

• ##### Winner: Best Science Instruction Solution

2013, 2010, 2007, 2006 SIIA CODiE Awards

• ##### Winner: Readers' Choice Award

2013 eSchool News

• ##### BESSIE Award Winner: Multi-level

2014, 2013 ComputEd Gazette

• ##### Cool Tool Award: STEM Solution

2013 Ed Tech Digest

• ##### Winner: Distinguished Achievement Award

2012, 2011, 2008, 2007, 2005 AEP

• ##### EDDIE Award Winner: Multi-level

2013, 2012 ComputEd Gazette

2010 AEP

• ##### Winner: Best K-12 Instructional Solution

2009 SIIA CODiE Awards

• ##### Winner: Award of Excellence

2009, 2008 Tech and Learning Magazine

• ##### Finalist: Best Math Instructional Solution

2014, 2013, 2012, 2009, 2008, 2006 SIIA CODiE Awards

• ##### Finalist: Distinguished Achievement Award

2013, 2012, 2011, 2010, 2009, 2006 AEP

• ##### Finalist: Best K-12 Instructional Solution

2010 SIIA CODiE Awards

• ##### Finalist: Golden Lamp Award

2009, 2008, 2006 AEP

• ##### E-Learning Innovation Award

Macromedia Corp.

Webby Awards

• ##### Three time Digital Dozen Honoree

Eisenhower National Clearinghouse