Impulse, Work, and Energy

Egg Throw

[L | t+ | —]
Students are invited to throw a raw egg as hard as they please. The egg does not break when caught in a sheet.

Karate Blow

[M | t+ | ★★★★]
The instructor breaks several boards with a swift blow of the hand.

[In-Depth Description]

Carnival Milk Bottle Trick

[L | t+ | ★★★★]
To knock over a wooden milk bottle, would you use a ball that rebounds or one that does not?

Pencil Blow Gun

[L | t++ | —]
A blow gun shoots a pencil through a board.

Toilet Paper

[ M | t+ | ★]
Toilet paper is torn off a roll by a quick yank but not by a slow pull.

[In-Depth Description]

Marginal String

[M | t | —]
A weight is suspended by a marginally strong string. Pulling on the weight with a similar string breaks the former, depending on the impulse.

Pile Driver

[M | t | —]
A falling weight drives a nail through a board.

Gravi Car

[L | t+ | ★★]
A falling weight propels a car forward.

[In-Depth Description]

Wind-Up Truck

[M | t | —]
A wound-up spring propels a toy truck.

[In-Depth Description]

Contact Us

Mailing Address: Lecture Demonstration Services, Science Center, Rm B-08A, 1 Oxford Street, Cambridge, MA 02138
Campus Location: Science Center B-08A | Tel: (617) 495-5824 | Email: scidemos-at-fas.harvard.edu