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]

Question: "When does the force of gravity change"

OPTIONS:
- no
- yes

Answer: "When the weight changes"

Response: no

Ratners Group PLC, a fast-growing, acquisition-minded London-based jeweler, raised its price for Seattle-based specialty jeweler Weisfield's Inc. to $57.50 a share, or $62.1 million, from $50 a share, or $55 million, after another concern said it would be prepared to outbid Ratners's initial offer. The other concern wasn't identified. Ratners's chairman, Gerald Ratner, said the deal remains of "substantial benefit to Ratners." In London at mid-afternoon yesterday, Ratners's shares were up 2 pence (1.26 cents), at 260 pence ($1.64). The sweetened offer has acceptances from more than 50% of Weisfield's shareholders, and it is scheduled for completion by Dec. 10. The acquisition of 87-store Weisfield's raises Ratners's U.S. presence to 450 stores. About 30% of Ratners's profit already is derived from the U.S.

Question: "Who caused Ratners to raise its price?"

OPTIONS:
- no
- yes

Answer: "To purchase more stores"

Response: no

On a day it celebrated 50 years of giving free legal advice, Southern Arizona Legal Aid announced it has received two grants totaling more than $7 million. One of the grants includes the creation of a Web site with legal advice for the poor. A three-year grant worth $6.6 million and a separate technology grant were announced at a press conference and dinner held Thursday at Evo. A. DeConcini Federal Courthouse, 405 W. Congress St. Deconcini was one of the organization's early board members. Thursday's celebration was the first public even held at the courthouse. About 100 members of the legal community attended, including state Attorney General Janet Napolitano and Arizona Supreme Court Justice Thomas Zlaket. Both grants come from the Legal Services., a private, nonprofit corporation established by Congress in 1974 to offer poor people equal access to the justice system. It's funded through congressional appropriation. The $6.6 million grant will pay for staffing operations. The Web site, which will be created with a $50,000 grant, is intended to offer legal advice to poor people across Arizona, said Paul Julian, chief executive officer of Southern Arizona Legal Aid. He said he wants every poor person in Arizona to have legal help. "This is another step in trying to realize that. We feel like we do a pretty good job of helping people who find us," Julian said. Julian said that though most people do not own computers, they can still access them at libraries, schools, and courthouses. He said the Web site will help bridge the "digital divide" that keeps the poor from using the Internet as a resource. Southern Arizona Legal Aid was founded in 1951 as the Legal Aid Society of the Pima County Bar Association. It offered free legal advice on civil matters including disputes in small claims court, divorce proceedings and obtaining Social Security benefits. Charles Ares, a member of the board of directors in the 1950s, said the office was kind of a charity operation.

Question: "What grants did Southern Arizona Legal Aid receive on the day it celebrated 50 years of giving free legal advice?"

OPTIONS:
- no
- yes

Answer: "Two grants totally over $6.5 million dollars"

Response: yes

Milwaukee, Wisconsin (CNN) -- President Barack Obama, in a bid to create jobs and boost economic growth, called on Congress on Monday to pass a $50 billion plan to renew the country's transportation infrastructure. His address was the first of two speeches the president is scheduled to make this week to frame his administration's ongoing response to the recession, less than two months ahead of midterm elections in which Democratic majorities in the House and Senate are in jeopardy. "Today, I am announcing a new plan for rebuilding and modernizing America's roads, and rails and runways for the long term," said Obama, who spoke on Labor Day in Milwaukee, Wisconsin -- a state with competitive gubernatorial and U.S. Senate races. "We used to have the best infrastructure in the world. We can have it again," he said to loud cheers from a crowd of union workers. The proposal envisions -- over a six year period -- rebuilding 150,000 miles of roads, 4,000 miles of rail and 150 miles of airport runways. It also would include modernizing the nation's air traffic control system in an effort to reduce delays and travel time. "This will not only create jobs immediately. It's also going to make our economy hum over the long haul," said the president. Obama hopes to work with Congress to enact an up-front investment of $50 billion -- an amount a White House statement said would represent a significant chunk of new spending on infrastructure. The investment would then be paired with what the administration called a framework to improve transportation spending. The long-term plan would include the establishment of an Infrastructure Bank, which would leverage federal dollars and focus on projects that could deliver the the biggest bang for the buck, Obama said. The president stressed the need for Democrats and Republicans to work together on the transportation initiative, which would need to be approved by Congress.

Question: "What was involved in President Obama's plan to create jobs and boost economic growth?"

OPTIONS:
- no
- yes

Answer: "A plan to rebuild 150,000 miles of roads, 4,000 miles of rail and 150 miles of airport runways"

Response:
yes