Question: Who was the President of the United States in 1939?
Answer: President Franklin D. Roosevelt

Question: Which fair was happening in New York in 1939?
Answer: 1939 New York World's Fair

Question: Against who did Britain declare war against in 1939?
Answer: Nazi Germany

Question: Which city did the king and queen stay in even with the bombing threats?
Answer: London

Question: How many people died on the first German raid on London?
Answer: one thousand civilians

Question: What year did the King's brother die in service?
Answer: 1942

Question: Who was Winston Churchill's predecessor?
Answer: Neville Chamberlain

Question: What position did Churchill hold?
Answer: Prime Minister

Question: What day of the week did Churchill and the King meet?
Answer: Tuesday

Question: Who did Churchill appoint to Cabinet that the King did not like?
Answer: Lord Beaverbrook

Question: What country did the King and Queen visit in July 1944?
Answer: Italy

Question: When did the King and Queen visit North Africa and Malta?
Answer: June 1943

Question: What improved when the King and Queen visited different military sites?
Answer: morale

Question: What is the association of independent states in Britain called?
Answer: the Commonwealth

Question: What two dominions did British India become?
Answer: India and Pakistan

Question: What country left the Commonwealth in January 1948?
Answer: Burma

Question: What year was the Republic of Ireland formed?
Answer: 1949

Question: Who was the Prime Minister of South Africa in 1947?
Answer: Jan Smuts

Question: What were the King's South African bodyguards referred as? 
Answer: the Gestapo

Question: Who instructed the King to only shake hands with whites in South Africa?
Answer: South African government

Question: What kind of cancer did the King develop?
Answer: lung cancer

Question: What developed in the King's right leg that prevented him from touring Australia?
Answer: arterial blockage

Question: What treatment helped prevent the loss of the King's right leg?
Answer: right lumbar sympathectomy

Question: Who was the King's heir presumptive?
Answer: Elizabeth

Question: Who was Elizabeth's spouse?
Answer: Duke of Edinburgh

Question: What church did the King's funeral take place on the 15th?
Answer: Windsor Castle

Question: What year did Queen Elizabeth die?
Answer: 2002

Question: What year did Princess Margaret die?
Answer: 2002

Question: In which chapel does King George's body lie in today? 
Answer: King George VI Memorial Chapel

Question: How high was public faith in the monarchy when King George assumed the throne?
Answer: low

Question: What position did George Hardie hold?
Answer: Labour Member of Parliament

Question: Who was George VI's brother?
Answer: Edward

Question: What is the largest rating of an electric motor?
Answer: 100 megawatts

Question: What is the main example of a DC power source?
Answer: batteries

Question: What does AC stand for?
Answer: alternating current

Question: What does DC stand for?
Answer: direct current

Question: In what device are small motors commonly found?
Answer: electric watches

Question: Who created the first electrostatic device?
Answer: Andrew Gordon

Question: Who discovered the principles of magnetic and electric interactions?
Answer: André-Marie Ampère

Question: In what year did Faraday convert electrical energy into mechanical energy?
Answer: 1821

Question: What toxic substance originally served the function of brine in primitive motors?
Answer: mercury

Question: In what year did Jedlik begin experimenting with electromagnetism?
Answer: 1827

Question: Besides the stator and the communicator, what is an element of a DC motor?
Answer: rotor

Question: What did Jedlik call his earliest devices?
Answer: electromagnetic self-rotors

Question: What discovery solved the problem of continuous rotation?
Answer: commutator

Question: What did Jedlik's improved device eliminate the need for?
Answer: permanent magnets

Question: When were developers competing with Jacobi able to match his accomplishments?
Answer: 1839/40

Question: What was Jacobi's improved motor used to propel?
Answer: boat

Question: Who created the first real electric motor?
Answer: Moritz von Jacobi

Question: Who broke the world record set by Jacobi's first motor?
Answer: Jacobi himself

Question: How long did it take for Jacobi's first world record to be broken?
Answer: four years

Question: Who developed the first mnotor capable of being used for machinery?
Answer: William Sturgeon

Question: Which inventor went bankrupt?
Answer: Thomas Davenport

Question: What was the main problem with applying early electric motors to industry?
Answer: the high cost of primary battery power

Question: What necessary technical development had yet to occur to make electric motors useful?
Answer: electricity distribution

Question: How fast did Sturgeon and Davenport's motors run?
Answer: 600 revolutions per minute

Question: What made Pacinotti's motor an important advancement?
Answer: non-fluctuating current

Question: Who created a motor similar to Pacinotti?
Answer: Zénobe Gramme

Question: How far from each other were the motors in Gramme's demonstrations?
Answer: 2 km

Question: Besides a motor, what did Gramme use the other device for?
Answer: generator

Question: In what two cities did Gramme conduct his demonstrations?
Answer: Vienna and Philadelphia

Question: What needs to exist between the rotor and stator for increased efficiency?
Answer: small air gap

Question: Which inventor created the first useful DC motor?
Answer: Frank Julian Sprague

Question: What was the transportation advancement made possible by Sprague's designs?
Answer: electric trolley system

Question: What was the name of Chicago's first electric trolley system?
Answer: South Side Elevated Railway

Question: Who did Sprague work for early in his career?
Answer: Thomas Edison

Question: How much energy do electric motors use in the modern United States?
Answer: more than half

Question: In what domain did electric motors reduce reliance on humans and animals?
Answer: agriculture

Question: Besides shafts, belts and compressed air, what did electric motors reduce the need for?
Answer: hydraulic pressure

Question: Where did electric motors improve convenience and safety?
Answer: in the home

Question: Who built the first induction motor?
Answer: Walter Baily

Question: What type of power were early motors unable to use?
Answer: AC

Question: Who bought Tesla's patents?
Answer: George Westinghouse

Question: For what application was Tesla's motor first used?
Answer: mining

Question: What's another name for the bar-winding-rotor?
Answer: squirrel-cage

Question: What would a rotor do without current reversal?
Answer: brake to a stop

Question: What switches the input of most DC motors?
Answer: commutator

Question: From where is current to the motor supplied?
Answer: stationary brushes

Question: What two motor types are ascendant today?
Answer: externally commutated induction and permanent-magnet

Question: What does the communicator do?
Answer: reverses the flow of current in the rotor windings

Question: What type of current is featured in brushed DC motors?
Answer: AC

Question: Where do brushes get their power?
Answer: external

Question: What is the main feature of the shaft in a commutated DC motor?
Answer: rotating

Question: Current flowing to create a temporary magent is called what?
Answer: electromagnet

Question: What rotates the motor shaft?
Answer: force between the two magnetic fields

Question: What element of the motor keeps the poles from alligning?
Answer: commutator

Question: What non-motor device demonstrates why a commutator is needed?
Answer: compass

Question: How is RFI generated?
Answer: sparking

Question: What do brushes need to be in contact with?
Answer: commutator

Question: What is created by contact between parts of the motor?
Answer: friction