4

John F. Kennedy's 1935 Choate Physics Lab Handwritten and Signed Worksheet

Currency:USD Category:Collectibles / Autographs Start Price:NA Estimated At:6,000.00 USD and UP
John F. Kennedy's 1935 Choate Physics Lab Handwritten and Signed Worksheet

Bidding Over

The auction is over for this lot.
The auctioneer wasn't accepting online bids for this lot.

Contact the auctioneer for information on the auction results.

Search for other lots to bid on...
Auction Date:2020 Jan 23 @ 17:00 (UTC-5 : EST/CDT)
Location:15th Floor WeWork, Boston, Massachusetts, 02108, United States
ALS - Autograph Letter Signed
ANS - Autograph Note Signed
AQS - Autograph Quotation Signed
AMQS - Autograph Musical Quotation Signed
DS - Document Signed
FDC - First Day Cover
Inscribed - “Personalized”
ISP - Inscribed Signed Photograph
LS - Letter Signed
SP - Signed Photograph
TLS - Typed Letter Signed
JFK's Choate Physics Laboratory Worksheet signed John F Kennedy dated March 14: One page double-sided, answering 10 questions for a laboratory experiment incorporating a DC electric motor, circa 1935. Extremely rare and revealing as to JFK's understanding and grasp of a difficult subject. Unique.

A few of the questions and JFK's responses:

3. Do the poles change and, if so, when? "They change as shown by compass needles. Attraction and repulsion when armature has moved slightly past the magnetic lines."

5. What causes motion in this case? "Attraction & Repulsion"

8. What happens? "The motor rotates clockwise."

9. Remove one and then two of the cells from the battery and notice what happens? "The contact becomes weaker causing slowing rotation."