Atomic Bomb Development and Iwo Jima

In which U.S. state was the city of Los Alamos, which is where the physicists worked to create the atomic bomb?

• New Mexico
• Washington
• Pennsylvania
• Massachusetts

Code name for the project to develop the 1st Atomic bomb:

• Brooklyn Project

• Manhattan Project

• Los Alamos Project

• Chicago Project

The atomic bombs used to end World War II were dropped on__________________.

• Tokyo and Nagasaki
• Berlin and Tokyo
• Hiroshima and Nagasaki
• Hiroshima and Berlin

Why did the United States decide to drop the bomb rather than invade Japan with soldiers?

• wanted to see if the bomb worked
•  did not think they could defeat the Japanese
• did not have the soldiers or weapons left to attack Japan
• They estimated that 500,000 to 1 million Allied soldiers would die in an invasion

What was Japan's main defense system on Iwo Jima?

• having a large naval battle on the island then fighting on land

• defending the beach to the last man

• underground cave systems

• Using civilian forces

Approximately how many Japanese soldiers were defending Iwo Jima?

• 10,000

• 15,000

• 20,000

• 5,000

Why was Iwo Jima so important?

• It was in the mainland of Japan.

• It was close to Japan and a good place for U.S. planes to land.

• There was nothing there.

• It was easy to invade.

Who made the difficult decision to use atomic weapons against Japan?

• President Roosevelt

• President Truman

• Hitler

• Mussolini

Which scientist wrote a letter to Roosevelt about the possibility of an atomic bomb?

• Einstein

• Hemingway

• Mussolini

• Truman

Why were the Japanese so difficult to defeat?

• They would not surrender

• They had better weapons

• They had more soldiers

• All of these are correct