If you have a mass of 50 kg on Earth, what is your weight in newtons? An object with more mass is pulled by gravity with greater force. Mass and weight are closely related. However, the weight of an object can change if the force of gravity changes. On Earth, the force of gravity is the same everywhere. So how does the force of gravity change? It doesnt if you stay on Earth. What if we travel to another planet or moon in our solar system? Look at the photo of astronaut Edwin E. Aldrin Jr. taken by fellow astronaut Neil Armstrong in the Figure. They were the first humans to walk on the moon. An astronaut weighs less on the moon than he would on Earth. This is because the moons gravity is weaker than Earths. The astronauts mass, on the other hand, did not change. He still contained the same amount of matter on the moon as he did on Earth. If the astronaut weighed 175 pounds on Earth, he would have weighed only 29 pounds on the moon. If his mass on Earth was 80 kg, what would his mass have been on the moon? [Figure 3]
What question would one ask from this paragraph?

QUESTION: How does mass relate to weight?

Peace and Prosperity: After years of government propaganda predicting the worst atrocities, most Japanese civilians were surprised at the warmth and friendliness of the occupying forces. The postwar period began, however, with millions of displaced people homeless and starving. To counter a perceived communist threat from the Soviet Union, the US quickly set to work reconstructing the economy by transforming Japan's institutions and devising a new pacifist constitution. Article 9 renounced Japan's right to maintain armed forces, although the ambiguous wording was later taken to permit the creati on of a "self-defense" force. The zaibatsu conglomerates that had proved so instrumental in boosting Japan's militarism were disbanded, later to re-emerge as the keiretsu trading conglomerates that dominated the economy once again. The entire economy received a massive jump-start with the outbreak of the Korean War, with Japan ironically becoming the chief local supplier for an army it had battled so furiously just a few years earlier. The occupation lasted until 1952, having already planted the seeds for Japan's future stunning economic success. Economic output was back to prewar levels, and British auto companies provided the support needed to get Japan's auto industry back on its feet. Japanese companies then enthusiastically imported any Western technologies they could get their hands on. This included transistor technologyinvented in the US but then considered to have only limited applicationsfor the surreal sum of $25,000. It was Japan that produced the world's first transistor radio. The electronic technology spurt that followed is now legendary. Parliamentary democracy finally came into its own, albeit with distinctly Japanese characteristics reflecting the dislike of debate and confrontation and the group-oriented preference for maintaining the appearance of harmony at all times. The government, through the powerful Finance Ministry and Ministry of International Trade and Industry, generously supported favored private corporations: first shipping, then cars, then electronics firms basked in the warmth of the government's loving attentions. Japan overtook Britain economically in 1964. By the end of the decade, Japan's was the third largest economy in the worldless then two decades after the war had left the country in ruins. Prosperity was not without its own problems: pollution caused by "dirty" industries, a high incidence of stomach ulcers (even suicides) among schoolchildren pressured by over-ambitious parents, and the awkward questions of what to do about nuclear energy. The famous coziness among politicians, bureaucrats, and private companies, together with the strong cultural emphasis on relationship-building and a lack of transparency and accountability, eventually led to corrupt practices of endemic proportions.
What question would one ask from this paragraph?

QUESTION: Japan was the third largest economy by the end of which decade?

The center of an atom is held together by powerful forces. This gives them a huge amount of stored energy. This type of energy is called nuclear energy. This energy can be released and used to do work. This happens in nuclear power plants where they split apart the nucleus of an atom. This splitting apart is called nuclear fission. Another type of nuclear energy happens in the Sun. Here the atoms nuclei are not split apart. Instead, the nuclei of the atoms are fused, or joined together. This process is called nuclear fusion. Some of the suns energy travels to Earth. This energy from nuclear fusion warms the planet and provides the energy for photosynthesis.
What question would one ask from this paragraph?

QUESTION: What type of nuclear energy process occurs in the sun?

Tuesday, September 11, 2001, dawned temperate and nearly cloudless in the eastern United States. Millions of men and women readied themselves for work. Some made their way to the Twin Towers, the signature structures of the World Trade Center complex in New York City. Others went to Arlington, Virginia, to the Pentagon. Across the Potomac River, the United States Congress was back in session. At the other end of Pennsylvania Avenue, people began to line up for a White House tour. In Sarasota, Florida, President George W. Bush went for an early morning run. For those heading to an airport, weather conditions could not have been better for a safe and pleasant journey. Among the travelers were Mohamed Atta and Abdul Aziz al Omari, who arrived at the airport in Portland, Maine. Boston: American 11 and United 175. Atta and Omari boarded a 6:00 A.M. flight from Portland to Boston's Logan International Airport. When he checked in for his flight to Boston, Atta was selected by a computerized prescreening system known as CAPPS (Computer Assisted Passenger Prescreening System), created to identify passengers who should be subject to special security measures. Under security rules in place at the time, the only consequence of Atta's selection by CAPPS was that his checked bags were held off the plane until it was confirmed that he had boarded the aircraft. This did not hinder Atta's plans. Atta and Omari arrived in Boston at 6:45. Seven minutes later, Atta apparently took a call from Marwan al Shehhi, a longtime colleague who was at another terminal at Logan Airport. They spoke for three minutes. It would be their final conversation.
What question would one ask from this paragraph?

QUESTION:
How long was the flight from Portland to Maine?