Input: So what is gravity? A typical definition of gravity is that it is a force. It causes an attraction between two masses. According to this definition, anything that has mass exerts a force. Any object exerts gravity on other objects. It does not matter how small it is, it has gravity. The more matter an object has, the more gravity it has. Your pencil has a tiny bit of gravity, but far too little to notice. What about a planet? It would have a lot of gravity. An objects gravity exerts a pull on other objects. Friction only occurs between objects that are touching. Gravity can act between objects that are not touching. In fact, gravity can act over very long distances. Where else can you feel gravity?

Does the response "Anything that has mass exerts a force of gravity and can exert that force on other objects" correctly answer the question "What does the standard definition of gravity indicate?"?

OPTIONS:
- no
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Output: yes

Light rays strike a reflecting surface. They are then reflected back. You can predict the angle of the reflected light. Imagine a ball bouncing off a surface. Light can do the same thing. That is, assuming the surface is shiny. So how do you know where light will go after it strikes a shiny surface? It depends on how the light initially strikes the shiny object. Light does not always go straight toward a surface. Therefore, not all light bounces straight back. Sometimes, light can hit a surface at an angle. The angle at which it strikes the surface tells us how it will bounce off. While light is different to a ball, they react in a similar manner. Many sports rely on knowledge of reflection. Pool players know a lot about reflection. They take great care when they strike the pool ball. They need it to go to a certain place. They know the angle it will hit the side of the pool table.

Question: "What sport relies on knowledge of reflection?"

OPTIONS:
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Answer: "basketball"

Response: no

Thelma James was a prime candidate for a real estate ripoff: She is 68, has precious little money and can't read or write. "I won't lie to you. I was so-o-o excited," the widow and former duplex dweller said of the purchase of her first home, a sagging frame structure on Snowden. "I was glad to get me a house." When James realized she had been swindled she turned to Memphis Area Legal Services, which represented her in a lawsuit. Now, James's monthly house notes have dropped from $796 - more than twice her monthly income - to an affordable $247. Some of the people who took advantage of her through a questionable loan program were sent to jail. "I don't know what I would have done without Legal Services," said James. "They solved a lot of my problems." James is one of more than 3,000 clients served last year by MALS, which provides assistance for civil matters, such as domestic abuse and family-related problems, Social Security and Supplemental Security Income, veterans, housing and consumer fraud cases. Like James, most clients are elderly or female. Some are handicapped. Some need medical care or veteran's benefits. Some are trying to escape eviction or an abusive marriage. And 87 percent live at or below poverty level. Shelby County Mayor A C Wharton recently said Legal Services is important for those who, because of poverty or other struggles in life, think justice is an empty word. "They must be given reason to believe that the law is for them too," said Wharton, a former executive director of MALS. But MALS faces a funding crunch next year, brought on by a $200,000 shortfall from three revenue sources.

Question: "Which portions indicate that James had limited income?"

Response: "When James realized she had been swindled"
OPTIONS:
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A: no

Problem: Expansion quickly peaked however, and the European powers who had carved up the New World set about testing each other in dynastic conflicts and colonial rivalry. The English were the main rivals of the Dutch on the high seas, and there were several wars between the two in the 17th and 18th centuries. In 16651667 the Dutch sailed up the River Medway and sank the British fleet moored there. The 18th century saw Amsterdam grow into the foremost financial center in the world, but the seeds of decline had already been planted. When the English colonies in New England rose up in revolt against the British, they found ready Ailies in the Dutch. From their colonies in the Caribbean they sent caches of arms and ammunition. The British were furious and went to war in 1780, destroying the Dutch navy and signaling a sudden decline in power and influence from which the Netherlands never recovered. Trade suffered to such an extent that in 1791 the VOC went into liquidation. In the latter part of the century there were anti-Orange demonstrations by pro-French factions in the country, and in 1795 Napoleon Bonaparte took the Netherlands in his epic march across Europe. Under the yoke of another foreign power, and with trade at an all time low, the Golden Age was truly dead. The Return of the House of Orange Napoleon installed his brother Louis as King of Holland and he chose to take the fine Town Hall on Dam Square as his palacenow the Koninklijk Palace. But only four years later he fled the city after civil disturbances broke out when he raised taxes. When Napoleon's bubble burst and French power began to wane, William of Orange emerged from exile and was proclaimed king in 1813. Amsterdam had to work its way out of economic decline, but throughout the 19th century the city grew steadily. Industrialization changed the city. With the building of the Central Station at the end of the century, Amsterdam turned its back on its seafaring past and looked towards the mechanical age for its future. The station was built over the old harbor wall and some of the oldest canals in the city center were filled in to allow better access to motorized vehicles. Dam Square was landlocked for the first time in its history.

Question: "Why are the Dutch no longer a powerful force in the world of trade?"

Answer: "The unrecoverable destruction of their ships and ports by the British"

OPTIONS:
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Answer: yes

Gravitational Potential Energy is affected by position. Like the leaves on trees, anything that is raised up has the potential to fall. It has potential energy. You can see examples of people with gravitational potential energy in 1.5 Figure below. Gravitational potential energy depends on two things. It depends on its weight, because a large falling rock can do more damage than a leaf falling from a tree. It also depends on its height above the ground. Like the skateboarder, the higher the ramp, the faster he will be going when he reaches the bottom. Like all energy, gravitational potential energy has the ability to do work. In this case, weight has the potential to deliver a force. More important for us is that it has the ability to cause change. What kind of change you may ask? Gravitational potential energy has the ability to cause motion.

Question: "What is the most important change gravitational potential energy can have?"

Response: "Friction"
OPTIONS:
- no
- yes

A:
no